1.Expert consensus on the workflow of digital aesthetic design in prosthodontics
Zhonghao LIU ; Feng LIU ; Jiang CHEN ; Cui HUANG ; Xianglong HAN ; Wenjie HU ; Chun XU ; Weicai LIU ; Lina NIU ; Chufan MA ; Yijiao ZHAO ; Ke ZHAO ; Ming ZHENG ; Yaming CHEN ; Qingfeng HUANG ; Yi MAN ; Mingming XU ; Xuliang DENG ; Ti ZHOU ; Xiaorui SHI
Journal of Practical Stomatology 2024;40(2):156-163
In the field of dental aesthetics,digital aesthetic design plays a crucial role in helping dentists to predict treatment outcomes vis-ually,as well as in enhancing the consistency of knowledge and understanding of aesthetic goals between dentists and patients.It serves as the foundation for achieving ideal aesthetic effects.However,there is no clear standard for this digital process currently in China and abroad.Many dentists lack of systematic understanding of how to carry out digital aesthetic design for treatment.To establish standardized processes for dental aesthetic design and to improve the homogeneity of treatment outcomes,Chinese Society of Digital Dental Industry(CSD-DI)convened domestic experts in related field to compile this consensus.This article elaborates on the key aspects of digital aesthetic data collection,integration steps,and the digital aesthetic design process.It also formulates a decision tree for dental aesthetics at macro level and outlines corresponding workflows for various clinical scenarios,serving as a reference for clinicians.
2.Environmental contamination related to the first patient with carbapenem-resistant Acinetobacter baumannii infection and the infection status of pa-tients in the intensive care unit in Tibetan areas
Cuo-Ta QIE ; Ding-Ying HE ; Fu-Yan LONG ; Xiao-Hua ZHANG ; Chun-Hua PENG ; Xiang-Xiang JIANG ; Ming-Lei DENG ; Cong FU ; Guo-Ping ZUO
Chinese Journal of Infection Control 2024;23(2):220-224
Objective To investigate the environmental contamination related to first patient with carbapenem-re-sistant Acinetobacter baumannii(CRAB)infection and the infection status of relevant patients in a newly established intensive care unit(ICU)of a hospital in Tibetan area,and analyze the transmission risk.Methods From the ad-mission in ICU of a patients who was first detected CRAB on November 15,2021 to the 60th day of hospitalization,all patients who stayed in ICU for>48 hours were performed active screening on CRAB.On the 30th day and 60th day of the admission to the ICU of the first CRAB-infected patient,environment specimens were taken respectively 2 hours after high-frequency diagnostic and therapeutic activities but before disinfection,and after disinfection but before medical activities.CRAB was cultured with chromogenic culture medium.Results Among the 13 patients who were actively screened,1 case was CRAB positive,he was transferred from the ICU of a tertiary hospital to the ICU of this hospital on November 19th.On the 40th day of admission to the ICU,he had fever,increased frequency for sputum suction,and CRAB was detected.The drug sensitivity spectrum was similar to that of the first case,and he also stayed in the adjacent bed of the first case.64 environmental specimens were taken,and 9 were positive for CRAB,with a positive rate of 14.06%,8 sampling points such as the washbasin,door handle and bed rail were positive for CRAB after high-frequency diagnostic and therapeutic activities.After routine disinfection,CRAB was detected from the sink of the washbasin.Conclusion For the prevention and control of CRAB in the basic-level ICU in ethnic areas,it is feasible to conduct risk assessment on admitted patients and adopt bundled prevention and con-trol measures for high-risk patients upon admission.Attention should be paid to the contaminated areas(such as washbasin,door handle,and bed rail)as well as the effectiveness of disinfection of sink of washbasin.
3.Analysis of positioning error of vacuum pad and breast bracket in base note radiotherapy for breast conserving surgery for breast cancer based on cone beam CT
Chun ZHOU ; Wei LI ; Jun CHENG ; Yuling JIANG ; Ming LI
Journal of Chinese Physician 2024;26(7):1017-1021
Objective:To analyze the positioning error of vacuum pad and breast bracket in base note radiotherapy for breast cancer with breast conserving surgery based on cone beam CT (CBCT).Methods:A total of 120 patients who received IMRT after breast conserving surgery for breast cancer in the radiotherapy department of Nantong Cancer Hospital from April 2020 to April 2022 were retrospectively selected. According to the fixation method, the patients were divided into two groups: group A ( n=60) was fixed with a vacuum pad, and group B ( n=60) was fixed with a breast bracket. CBCT was used to evaluate the placement, and the placement errors and the occurrence of radiation dermatitis in each group were analyzed. Results:The translation errors of group A and group B in the left and right directions were (0.33±0.12)cm and (0.34±0.15)cm, respectively, and there was no statistically significant difference between the groups ( P>0.05). The errors in the direction of the abdomen and back were 0.32(0.11, 0.42)cm and 0.15(0.09, 0.21)cm, respectively, while the errors in the direction of the head and foot were 0.34(0.16, 0.34) cm and 0.23(0.15, 0.37)cm, respectively. The translation errors of the head, foot, and abdomen and back in group B were smaller than those in group A (all P<0.05). Patients in group B had significantly smaller translation errors in the left and right directions [group A: (0.31±0.13)cm, group B: (0.18±0.05)cm, P<0.05], and after rotation in the ventral and dorsal directions [group A: (0.31±0.11)cm, group B: (0.23±0.08)cm, P<0.05]. There was no statistically significant difference in translation errors after rotation in the head and foot directions ( P>0.05). The rotation error in the left and right directions of group B was smaller than that of group A [A: (0.98 0.12)°, group B: (0.67±0.31)°, P<0.05]. There was no statistically significant difference in the comparison of head foot and abdominal back rotation errors (all P>0.05). The planned center point (MIDM) of group B patients was located 10 cm to the left and right horizontally (MIDL, MIDR), with MIDM moving 8 cm to the head side (SM), MIDL moving 8 cm to the head side (SL), MIDR moving 8 cm to the head side (SR), MIDM moving 8 cm to the foot side (IM), MIDL moving 8 cm to the foot side (IL), and MIDR moving 8 cm to the foot side (IR). The thickness of the phantom was lower than that of group A (all P<0.05). At the completion of treatment, the total incidence of high-grade radiation dermatitis in group A was 61.67%(37/60), while the total incidence of high-grade radiation dermatitis in group B was 41.67%(25/60). The incidence of high-grade radiation dermatitis in group B was lower than that in group A ( P<0.05). Conclusions:Using breast bracket for breast fixation after breast conserving surgery for breast cancer can reduce the positioning error, the phantom thickness and the incidence of high-grade radiation dermatitis during intensity modulated radiotherapy, which is of high clinical value.
4.Safety of high-carbohydrate fluid diet 2 h versus overnight fasting before non-emergency endoscopic retrograde cholangiopancreatography: A single-blind, multicenter, randomized controlled trial
Wenbo MENG ; W. Joseph LEUNG ; Zhenyu WANG ; Qiyong LI ; Leida ZHANG ; Kai ZHANG ; Xuefeng WANG ; Meng WANG ; Qi WANG ; Yingmei SHAO ; Jijun ZHANG ; Ping YUE ; Lei ZHANG ; Kexiang ZHU ; Xiaoliang ZHU ; Hui ZHANG ; Senlin HOU ; Kailin CAI ; Hao SUN ; Ping XUE ; Wei LIU ; Haiping WANG ; Li ZHANG ; Songming DING ; Zhiqing YANG ; Ming ZHANG ; Hao WENG ; Qingyuan WU ; Bendong CHEN ; Tiemin JIANG ; Yingkai WANG ; Lichao ZHANG ; Ke WU ; Xue YANG ; Zilong WEN ; Chun LIU ; Long MIAO ; Zhengfeng WANG ; Jiajia LI ; Xiaowen YAN ; Fangzhao WANG ; Lingen ZHANG ; Mingzhen BAI ; Ningning MI ; Xianzhuo ZHANG ; Wence ZHOU ; Jinqiu YUAN ; Azumi SUZUKI ; Kiyohito TANAKA ; Jiankang LIU ; Ula NUR ; Elisabete WEIDERPASS ; Xun LI
Chinese Medical Journal 2024;137(12):1437-1446
Background::Although overnight fasting is recommended prior to endoscopic retrograde cholangiopancreatography (ERCP), the benefits and safety of high-carbohydrate fluid diet (CFD) intake 2 h before ERCP remain unclear. This study aimed to analyze whether high-CFD intake 2 h before ERCP can be safe and accelerate patients’ recovery.Methods::This prospective, multicenter, randomized controlled trial involved 15 tertiary ERCP centers. A total of 1330 patients were randomized into CFD group ( n = 665) and fasting group ( n = 665). The CFD group received 400 mL of maltodextrin orally 2 h before ERCP, while the control group abstained from food/water overnight (>6 h) before ERCP. All ERCP procedures were performed using deep sedation with intravenous propofol. The investigators were blinded but not the patients. The primary outcomes included postoperative fatigue and abdominal pain score, and the secondary outcomes included complications and changes in metabolic indicators. The outcomes were analyzed according to a modified intention-to-treat principle. Results::The post-ERCP fatigue scores were significantly lower at 4 h (4.1 ± 2.6 vs. 4.8 ± 2.8, t = 4.23, P <0.001) and 20 h (2.4 ± 2.1 vs. 3.4 ± 2.4, t= 7.94, P <0.001) in the CFD group, with least-squares mean differences of 0.48 (95% confidence interval [CI]: 0.26–0.71, P <0.001) and 0.76 (95% CI: 0.57–0.95, P <0.001), respectively. The 4-h pain scores (2.1 ± 1.7 vs. 2.2 ± 1.7, t = 2.60, P = 0.009, with a least-squares mean difference of 0.21 [95% CI: 0.05–0.37]) and positive urine ketone levels (7.7% [39/509] vs. 15.4% [82/533], χ2 = 15.13, P <0.001) were lower in the CFD group. The CFD group had significantly less cholangitis (2.1% [13/634] vs. 4.0% [26/658], χ2 = 3.99, P = 0.046) but not pancreatitis (5.5% [35/634] vs. 6.5% [43/658], χ2 = 0.59, P = 0.444). Subgroup analysis revealed that CFD reduced the incidence of complications in patients with native papilla (odds ratio [OR]: 0.61, 95% CI: 0.39–0.95, P = 0.028) in the multivariable models. Conclusion::Ingesting 400 mL of CFD 2 h before ERCP is safe, with a reduction in post-ERCP fatigue, abdominal pain, and cholangitis during recovery.Trail Registration::ClinicalTrials.gov, No. NCT03075280.
5.Effect of different blood pressure stratification on renal function in diabetic population
Yong-Gang CHEN ; Shou-Ling WU ; Jin-Feng ZHANG ; Shuo-Hua CHEN ; Li-Wen WANG ; Kai YANG ; Hai-Liang XIONG ; Ming GAO ; Chun-Yu JIANG ; Ye-Qiang LIU ; Yan-Min ZHANG
Medical Journal of Chinese People's Liberation Army 2024;49(6):663-669
Objective To investigate the effect of varying blood pressure stratification on renal function in the diabetic population.Methods A prospective cohort study was conducted,enrolling 9 489 diabetic patients from a total of 101 510 Kailuan Group employees who underwent health examinations between July 2006 and October 2007.The follow-up period was(8.6±4.0)years.Participants were categorized into four groups based on their baseline blood pressure levels:normal blood pressure(systolic blood pressure<120 mmHg and diastolic blood pressure<80 mmHg),elevated blood pressure(systolic blood pressure 120-130 mmHg and diastolic blood pressure<80 mmHg),stage 1 hypertension(systolic blood pressure 130-140 mmHg and/or diastolic blood pressure 80-90 mmHg),and stage 2 hypertension(systolic blood pressure≥140 mmHg and/or diastolic blood pressure≥90 mmHg).The incidence density of chronic kidney disease(CKD)was compared among these groups.A multivariate Cox proportional hazards regression model was employed to assess the effects of different blood pressure levels on renal function in diabetic patients,with the stability of the results confirmed using a multivariate time-dependent Cox proportional hazards model.Sensitivity analysis was conducted after excluding cases of cardiovascular disease(CVD)during follow-up,and cases using antihypertensive and antidiabetic medications at baseline.Results(1)At baseline,stage 1 hypertension patients demonstrated statistically significant higher differences with age and body mass index(BMI)compared to normal blood pressure group(P<0.05).(2)By the end of the follow-up,2 294 cases of CKD were identified,including 1 117 cases of estimated glomerular filtration rate(eGFR)decline and 1 575 cases of urinary protein.The incidences density of CKD,eGFR decline and urinary protein for stage 1 hypertension group were 39.4,16.3 and 25.5 per thousand person-years,respectively,all of which were statistically significant different from normal blood pressure group(log-rank test,P<0.01).(3)Multivariate Cox regression analysis revealed that,compared to the normal blood pressure group,stage 1 hypertension was associated with a 29%increased risk of CKD(HR=1.29,95%CI 1.09-1.52)and a 40%increased risk of eGFR decline(HR=1.40,95%CI 1.08-1.80)in diabetic individuals.Conclusion Stage 1 hypertension significantly increases the risk of CKD and eGFR decline in diabetic individuals,with a particularly notable effect on the risk of eGFR decline.
6.Expression and Clinical Significance of LINC00475 in Multiple Myeloma
Ling LU ; Dan GUO ; Le-Min HONG ; Yu-Wen JIANG ; Hong-Ming FAN ; Chun-Qun HUANG ; Jin-Feng LU ; Jie CHEN ; Hong-Hui XU ; Hong-Ming HUANG
Journal of Experimental Hematology 2024;32(3):789-793
Objective:To investigate the relative expression level and clinical significance of LINC00475 in serum of patients with multiple myeloma(MM).Methods:The expression of LINC00475 in serum of 108 MM patients and five MM cell lines including RPMI 8226,NCI-H929,U266,OPM2 and CAG were detected by real-time fluorescence quantitative PCR.The diagnostic value of LINC00475 in MM was evaluated by receiver operating characteristic(ROC)curve analysis.The correlation of LINC00475 with patients'characteristics was analyzed.Results:Compared with control groups,the expression of LINC00475 was up-regulated in serum of MM patients and MM cell lines(all P<0.05).ROC curve analysis showed that the optimal cut-off value of LINC00475 was 262.4,the area under curve(AUC)was 0.924(95%CI:0.884-0.964),and sensitivity and specificity was 83.3%and 91.7%,respectively,which indicated that LINC00475 had good evaluation value in MM patients.Compared with low-LINC00475 expression group,patients in high-LINC00475 expression group had higher levels of β2-microglobulin(β2-MG)and Cystatin C(Cys-C)but lower albumin(ALB)(all P<0.05).Compared with MM patients with International Staging System(ISS)stage I,the expression level of LINC00475 was significantly higher in patients with stage Ⅱ and Ⅲ(both P<0.05).Conclusion:LINC00475 is helpful to distinguish MM patients from healthy adults,which is correlated with the prognostic indicators such as β2-MG,ALB,and ISS stage.
7.The neuroprotective effect of Wenfei Jiangzhuo formula on vascular dementia model rats based on regulation of mitochondrial homeostasis by PGAM5-Drp1 axis
Ding ZHANG ; Zhi-Han HU ; Chun-Ying SUN ; Xiao-Dong ZHU ; Fang-Cun LI ; Ming-He JIANG ; Hong-Ling QIN ; Wei CHEN ; Yue-Qiang HU
Chinese Pharmacological Bulletin 2024;40(11):2158-2164
Aim To observe the effects of Wenfei Jiangzhuo formula(WFJZF)on rats with vascular de-mentia and investigate its possible mechanism of ac-tion.Methods Thirty-six healthy male SD rats were randomly divided into the sham group,model group,donepezil group,and low-dose,medium-dose and high-dose groups of Wenfei Jiangzhuo formula,with six rats per group.Except for the sham group,the other groups were prepared as VaD models,and each group was gavaged with the corresponding drugs after suc-cessful modeling,and tests were performed after three weeks of treatment.Behavioral,hippocampal CA1 area morphology,neural dendrites and mitochondrial chan-ges were observed in all groups of rats,and phospho-glycerate mutase 5(PGAM5),dynamics-related pro-teins1(Drp1),opticatrophyprotein-1(OPA1),and other proteins were detected in each group.Results Compared with the sham group,rats in the model group and each intervention group had prolonged es-cape latency(P<0.05),a shorter number of travers-als across the platforms(P<0.05),a sparse morphol-ogy of hippocampal neurons,a reduction in the number of secondary dendritic spines,and a rupture of the out-er membrane of the mitochondria;the expression of the PGAM5 and Drp1 proteins in hippocampal tissues was elevated(P<0.05),and the expression of the OPA1 and Mfn1/2 protein expression decreased(P<0.05);compared with the model group,donepezil group and Wenfei Jiangzhuo formula high-dose group of rats had shorter evasion latency(P<0.05),increased number of times to traverse the platform(P<0.05),increased number of hippocampal neurons,tightly packed,more secondary dendritic structures,and reduced mitochon-drial damage;the expression of PGAM5 and Drp1 pro-teins was reduced(P<0.05),and the expression of OPA1 and Mfn1/2 proteins was elevated(P<0.05).Conclusions Wenfei Jiangzhuo formula can regulate the PGAM5-Drp1 signaling axis to improve the balance of mitochondrial homeostasis,thus improving the cog-nitive condition of the brain and exerting cerebroprotec-tive effects.
8.Correlation of environment temperature with the incidence of testicular torsion
Qing-Song MENG ; Jia-Xing DU ; Ming ZHANG ; Jiang-Hua JIA ; Xin WANG ; Peng ZHANG ; Wan-Li MA ; Ya-Xuan WANG ; Dong-Bin WANG ; Jin-Chun QI
National Journal of Andrology 2024;30(2):128-131
Objective:To explore the influence of environment temperature on the incidence of testicular torsion.Methods:We collected the clinical data on 172 cases of testicular torsion diagnosed in the Second Hospital of Hebei Medical University from De-cember 2013 to December 2020.According to the local environment temperature on the day of onset,we divided the patients into groups A(below 0℃),B(0-10℃),C(10-20℃)and D(above 20℃),and compared the incidence rates of testicular torsion among the four groups,followed by correlation analysis.Results:The incidence rate of testicular torsion was 12.8%(n=22)in group A,35.5%(n=61)in B,34.9%(n=60)in C and 16.9%(n=29)in D,the highest at 0-10℃ in group B,with sta-tistically significant difference among the four groups(x2=29.07,P<0.001).Spearman correlation analysis indicated that the inci-dence of testicular torsion was negatively correlated with the environment temperature(r=-0.261,P<0.01),with no statistically significant difference among different seasons(x2=5.349,P>0.05),but higher in autumn and winter than in the other two sea-sons.Conclusion:The incidence of testicular torsion is negatively correlated with the environment temperature,elevated when the temperature decreases,but has no statistically significant difference among different seasons,though relatively higher in autumn and winter.
9.Safety and efficacy of Rezūm water vapor thermal therapy system in the treatment of benign prostatic hyperplasia
Boxin XUE ; Jie SUN ; Chun JIANG ; Gang CHEN ; Haifeng YANG ; Ming LIU
Chinese Journal of Urology 2023;44(6):446-451
Objective:To evaluate the efficacy and safety of Rezūm Water Vapor Thermal Therapy system in the treatment of patients with benign prostatic hyperplasia (BPH).Methods:The clinical data of 22 patients with benign prostatic hyperplasia treated with Rezūm Water Vapor Thermal Therapy system in Boao Yiling Life Care Center in Hainan from December 2020 to January 2021 were retrospectively analyzed, with age of (61.0±5.9) years, prostate volume of (43.7±8.4) ml. international prostate symptom score (IPSS) of (19.3±3.7), quality of life (QOL) score of (4.2±0.8), maximum urinary flow rate (Q max) of (11.9±3.4) ml ml/s, and residual urine volume (PVR) of (14.0±19.0). For 19 patients with sexual life, the International Index of Erectile Function Questionnaire-5 (IIEF-5) were 17.0±5.5, the Men's Sexual Health Questionnaire-Ejaculatory Dysfunction Score (MSHQ-EjD) ejaculatory function score were 10.0±3.2, and the ejaculatory satisfaction score were 1.5±1.0. Twenty-two patients underwent Rezūm Water Vapor Thermal Therapy under intravenous anesthesia (general anesthesia without intubation) in the dorsal lithotomy position. The Rezūm system consisted of reusable thermal steam treatment device and disposable prostate thermal steam treatment instrument. The thermal steam treatment device used radiofrequency energy to heat sterile distilled water, generating high-temperature steam at 103℃. In a 9-second timeframe, the tissue temperature within each treatment area was raised approximately 70℃, causing cell death and resulting in a shrink in prostate tissue volume. The disposable prostate thermal steam treatment instrument could be inserted through a cystoscope and had a retractable needle tip that extends to a length of 10.25 mm. The needle tip had 12 evenly distributed holes arranged in three rows of four holes each, with a spacing of 120° between rows, allowing for even diffusion of thermal steam along the circumference. The patient was placed in a lithotomy position, and the disposable prostate thermal steam treatment instrument was used to examine the prostate, urethra, and bladder via cystoscopy, assessing the lateral lobes and median lobe of the prostate. The tissue spacing within each field of view of the treatment instrument is 0.5 cm, and the distance from the bladder neck to the verumontanum is calculated. The first needle was injected at 3 o’clock along the left lobe, withdrawing 2 fields of view each time. During the release of thermal steam, the needle tip was positioned perpendicular to the prostate urethral mucosa, and each needle injection delivered 0.42 ml of sterile distilled water-formed thermal steam into the prostate tissue. The thermal steam injection lasted for 9 seconds, followed by a 2-3 seconds waiting period before retracting the needle tip. One needle was injected per 2 fields of view, progressing towards the proximal urethra of the verumontanum. The same method was used to treat the right lobe. For cases with significant median lobe enlargement, two fields of view were retracted at the bladder neck, and the needle was inserted at a 45° angle. The second needle was injected at intervals determined by the extent of median lobe enlargement. Each puncture point was observed for no significant bleeding, and the instrument was then removed, with an F16/F18 silicone catheter left in place. The operative time as well as indwelling catheter time were recorded. The clinical parameters such as IPSS, QOL, prostate volume, Qmax, PVR, QOL, IIEF-5 and MSHQ-EjD at preoperative and 12 to 22 weeks post operation were compared. Adverse events from the Rezūm procedure to 12-22 weeks postoperatively were recorded. Results:All the operations were successfully completed. The operation time of Rezūm system was 3.9±1.6 min, and the indwelling catheter time after operation was 4.8±1.1 days. The IPSS scores of 22 patients at 12-22 weeks after operation were 4.4±3.3, whose reduction was 14.9±4.4 compared with these at baseline( P<0.01). The PV was (37.7±8.4)ml, Qmax was (25.5±9.6)ml/s, PVR was (6.2±8.1)ml, and QOL was 1.6±0.9, all demonstrating statistically significant differences compared to preoperative values ( P<0.05). Among the 19 cases with sexual activity, the IIEF-5 score was 20.4±3.2, and the ejaculatory function score of MSHQ-EjD was 13.1±3.1, both showing statistically significant differences compared to preoperative scores ( P<0.05). The ejaculatory satisfaction score of MSHQ-EjD was 1.1±0.5, and there was no statistically significant difference compared to preoperative scores ( P>0.05). None of the 22 cases required medication or further surgical treatment for BPH after surgery. There were no urethral injuries, rectal or bladder perforations during the surgeries, and no severe complications such as rectal fistula or bladder neck contracture occurred postoperatively. There were no deaths reported. Postoperative discomfort in the urethra occurred in 19 cases, urethral pain in 8 cases, hematuria in 15 cases, poor sleep quality in 2 cases, and constipation in 1 case, all of which resolved within 7 to 10 days after surgery. Erectile dysfunction and retrograde ejaculation occurred in one case each at 4 to 5 weeks postoperatively but did not reoccur thereafter. Prostatitis and nodular hyperplasia of the middle lobe of the prostate occurred in one case each at 21 weeks and 25 weeks postoperatively, respectively, and no treatment was administered. Conclusions:In the real world, the short-term overall effect of Rezūm Water Vapor Thermal Therapy system in the treatment of benign prostatic hyperplasia is satisfactory, which shows good efficacy and safety.
10.A descriptive analysis on hypertension in adult twins in China.
Yu Tong WANG ; Wei Hua CAO ; Jun LYU ; Can Qing YU ; Sheng Feng WANG ; Tao HUANG ; Dian Jian Yi SUN ; Chun Xiao LIAO ; Yuan Jie PANG ; Zeng Chang PANG ; Min YU ; Hua WANG ; Xian Ping WU ; Zhong DONG ; Fan WU ; Guo Hong JIANG ; Xiao Jie WANG ; Yu LIU ; Jian DENG ; Lin LU ; Wen Jing GAO ; Li Ming LI
Chinese Journal of Epidemiology 2023;44(4):536-543
Objective: To describe the distribution characteristics of hypertension among adult twins in the Chinese National Twin Registry (CNTR) and to provide clues for exploring the role of genetic and environmental factors on hypertension. Methods: A total of 69 220 (34 610 pairs) of twins aged 18 and above with hypertension information were selected from CNTR registered from 2010 to 2018. Random effect models were used to describe the population and regional distribution of hypertension in twins. To estimate the heritability, the concordance rates of hypertension were calculated and compared between monozygotic twins (MZ) and dizygotic twins (DZ). Results: The age of all participants was (34.1±12.4) years. The overall self-reported prevalence of hypertension was 3.8%(2 610/69 220). Twin pairs who were older, living in urban areas, married, overweight or obese, current smokers or ex-smokers, and current drinkers or abstainers had a higher self-reported prevalence of hypertension (P<0.05). Analysis within the same-sex twin pairs found that the concordance rate of hypertension was 43.2% in MZ and 27.0% in DZ, and the difference was statistically significant (P<0.001). The heritability of hypertension was 22.1% (95%CI: 16.3%- 28.0%). Stratified by gender, age, and region, the concordance rate of hypertension in MZ was still higher than that in DZ. The heritability of hypertension was higher in female participants. Conclusions: There were differences in the distribution of hypertension among twins with different demographic and regional characteristics. It is indicated that genetic factors play a crucial role in hypertension in different genders, ages, and regions, while the magnitude of genetic effects may vary.
Adult
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Female
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Humans
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Male
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Alcohol Drinking
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Diseases in Twins/genetics*
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Hypertension/genetics*
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Twins, Dizygotic/genetics*
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Twins, Monozygotic/genetics*

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