1.The role of enteral nutritional support in treatment of chronic heart failure patients
Xianlong WU ; Zhihui YANG ; Qiqi CAI ; Pan YING ; Sheng ZHANG ; Xiaoyu WU
Chinese Journal of Integrated Traditional and Western Medicine in Intensive and Critical Care 2019;26(1):71-75
Objective To investigate the role of enteral nutrition (EN) support in the treatment of patients with chronic heart failure. Methods Ninety patients with chronic heart failure (conform to the New York Heart Association (NYHA) cardiac function class Ⅲ-Ⅳ) admitted to Intensive Care Unit (ICU), Cardiology Care Unit (CCU) and Emergency ICU (EICU) of Taizhou First People's Hospital from January 2015 to September 2017 were enrolled, and according to different nutritional methods, they were divided into a control group (rational autonomous diet group) and an observation group (Ruineng enteral nutritional emulsion for EN group), each group 45 cases. Based on the calculation (Harris-Benedict) of individual total energy consumption the control group had a reasonable autonomous diet and Ruineng EN emulsion for EN group. The chang of various nutrition indexes [including body mass index (BMI), serum total protein (TP), albumin (Alb), hemoglobin (Hb), vitamin B12, folic acid, serum iron], inflammatory factors [tumor necrosis factor-α (TNF-α) and interleukin-6 (IL-6)], and the level of cardiac function index (LVEF) before and after treatment were observed. Results ① Before treatment, vitamin B12 in the observation group was significantly higher than that in the control group (ng/L: 153.3±54.6 vs. 113.4±80.2, P < 0.05), there were no statistical significant differences in other indicators between the two groups (all P > 0.05). ② After treatment, compared with those before treatment, the nutritional indicators and LVEF of both groups were higher, and inflammatory factors were lower, there were statistical significant differences in the other indicators before and after treatment except Hb and IL-6 in the control group and serum iron in the observation group [the control group: BMI (kg/m2) was 20.9±1.8 vs. 19.9±1.2, TP (g/L) was 66.0±2.4 vs. 63.7±1.6, Alb (g/L) was 34.4±3.5 vs. 31.1±2.3, vitamin B12 (ng/L) was 149.5±79.2 vs. 113.4±80.2, folic acid (nmol/L) was 10.0±1.7 vs. 4.6±3.2, serum iron (μmol/L) was 16.5±13.7 vs. 10.4±7.5, TNF-α (ng/L) was 23.8±10.0 vs. 28.3±8.6, LVEF was 0.35±0.14 vs 0.32±0.04; observation group: BMI (kg/m2) was 21.5±1.4 vs. 20.2±1.4, TP (g/L) was 66.5±2.8 vs. 64.3±2.2, Alb (g/L) was 35.8±3.1 vs. 33.3±1.9, Hb (g/L) was 121.4±13.8 vs. 112.9±12.0, vitamin B12 (ng/L) was 201.1±98.6 vs. 153.3±54.6, folic acid (nmol/L) was 15.7±14.4 vs. 8.8±2.8, TNF-α (ng/L) was 20.5±6.3 vs. 25.8±3.0, IL-6 (ng/L) was 209.4±6.5 vs. 220.9±16.9, LVEF was 0.38±0.07 vs. 0.33±0.02, all P < 0.05]. ③ Before and after treatment, the changes of BMI, Hb, vitamin B12, folic acid and IL-6 in the observation group were more significant than those in the control group [BMI (kg/m2): 1.4±0.9 vs. 1.1±0.3, Hb (g/L): 8.6±1.2 vs. 2.7±0.9, vitamin B12 (ng/L): 47.1±1.0 vs. 36.2±0.9, folic acid (nmol/L): 6.8±1.8 vs. 5.5±1.8, IL-6 (ng/L):-10.8±2.3 vs. -1.6±1.0, all P < 0.05]. After treatment, the degree of increase of serum iron in the control group was more significant than that in the observation group (μmol/L: 6.2±0.8 vs. 1.4±0.9, P <0.05), there were no significant differences in the degrees of improvement in TP, Alb and TNF-α between the two groups (all P > 0.05). ④ The difference value of each indicator before and after treatment of the two groups of patients with cardiac grade Ⅲ was more significant than that in the patients with cardiac grade Ⅳ, among the indicators in the control group, Hb, serum iron and IL-6 showed statistical significant differences [Hb (g/L): 3.05±0.42 vs. 2.47±0.84, serum iron (μmol/L): 6.81±0.91 vs. 5.95±1.82, IL-6 (ng/L): -3.87±0.45 vs. -0.53±0.28, all P < 0.05], while in the observation group of patients with cardiac grade Ⅲ and Ⅳ, Alb, Hb, serum iron, IL-6 appeared statistical significant differences [Alb (g/L): 3.41±0.38 vs. 2.27±0.91, Hb (g/L): 9.83±1.44 vs. 8.10±0.98, serum iron (μmol/L): 2.23±0.34 vs. 1.04±0.88, IL-6 (ng/L):-14.11±0.42 vs. -9.45±1.01, all P < 0.05]. Conclusion In the treatment of patients with chronic cardiac failure, simultaneously EN support is given energetically, that can improve the nutrition status of organism, reduce inflammatory reaction and enhance cardiac function; the therapeutic effect of Ruineng EN support is remarkably better than that of the autonomous diet support.
2.The synergistic effect of FGF-21 and insulin on regulating glucose metabolism and its mechanism.
Dan YU ; Cuiyu SUN ; Guopeng SUN ; Guiping REN ; Xianlong YE ; Shenglong ZHU ; Wenfei WANG ; Pengfei XU ; Shujie LI ; Qiang WU ; Zeshan NIU ; Tian SUN ; Mingyao LIU ; Deshan LI
Acta Pharmaceutica Sinica 2014;49(7):977-84
Previous studies proposed that the synergistic effect of fibroblast growth factor-21 (FGF-21) and insulin may be due to the improvement of insulin sensitivity by FGF-21. However, there is no experimental evidence to support this. This study was designed to elucidate the mechanism of synergistic effect of FGF-21 and insulin in the regulation of glucose metabolism. The synergistic effect of FGF-21 and insulin on regulating glucose metabolism was demonstrated by investigating the glucose absorption rate by insulin resistance HepG2 cell model and the blood glucose chances in type 2 diabetic db/db mice after treatments with different concentrations of FGF-21 or/and insulin; The synergistic metabolism was revealed through detecting GLUT1 and GLUT4 transcription levels in the liver by real-time PCR method. The experimental results showed that FGF-21 and insulin have a synergistic effect on the regulation of glucose metabolism. The results of real-time PCR showed that the effective dose of FGF-21 could up-regulate the transcription level of GLUT1 in a dose-dependent manner, but had no effect on the transcription level of GLUT4. Insulin (4 u) alone could up-regulate the transcription level of GLUT4, yet had no effect on that of GLUT1. Ineffective dose 0.1 mg kg(-1) FGF-21 alone could not change the transcription level of GLUT1 or GLUT4. However, when the ineffective dose 0.1 mg x kg(-1) FGF-21 was used in combination with insulin (4 u) significantly increased the transcription levels of both GLUT1 and GLUT4, the transcription level of GLUT1 was similar to that treated with 5 time concentration of FGF-21 alone; the transcription level of GLUT4 is higher than that treated with insulin (4 u) alone. In summary, in the presence of FGF-21, insulin increases the sensitivity of FGF-21 through enhancing GLUT1 transcription. Vice versa, FGF-21 increases the sensitivity of insulin by stimulating GLUT4 transcription in the presence of insulin. FGF-21 and insulin exert a synergistic effect on glucose metabolism through mutual sensitization.
3.Effects of enteral immunonutrition emulsion on immune function in critically ill patients with mechanical ventilation
Qiqi CAI ; Sheng ZHANG ; Xiaogang GE ; Pan YING ; Xianlong WU ; Zhihui YANG
Chinese Journal of Integrated Traditional and Western Medicine in Intensive and Critical Care 2018;25(2):169-172
Objective To observe the intervention effect of immune-enhancing enteral nutrition (EN) emulsion on immune function of critically ill patients with mechanical ventilation (MV). Methods One hundred and twenty critically ill patients with MV admitted to the Department of Emergency Intensive Care Unit (EICU) of Taizhou First People's Hospital from July 2015 to June 2017 were enrolled, and they were divided into immune-enhancing EN group and standard EN group by random numbers generated by a computer. Ultimately, 76 cases were enrolled in the study, among them, 36 cases were in the immune-enhancing nutrition group and 40 cases were in the standard nutrition group. The differences of acute physiology and chronic health evaluation Ⅱ (APACHE Ⅱ), the sequential organ function evaluation (SOFA) score on 1, 3, 7 days and immunity indexes (secretory immuno-globulins IgA, IgG, IgM), lymphocyte subpopulation (CD4 and CD8), duration of MV and the length of ICU stay on the 1, 7 days after EN were compared. Results Comparisons between the immune-enhancing EN group and standard EN group showed: APACHE Ⅱ score had no statistically significant difference between the two groups at each time point, SOFA score on 7 days after EN treatment was significantly decreased in the immune-enhancing EN group (2.56±1.38 vs. 3.68±2.96, P < 0.05); IgA, IgG, IgM were obviously higher in the immune-enhancing EN group than those in standard EN group on 7 days after treatment [IgA (mg/L): 2 967.6±635.6 vs. 2 525.0±592.7, IgG (mg/L): 14 982.5±2 899.7 vs. 12 996.4±2 875.9, IgM (mg/L): 1 206.8±233.3 vs. 1 093.2±165.1, all P < 0.05], CD4 (0.45±0.06 vs 0.37± 0.10) and CD8 (0.20±0.03 vs. 0.18±0.04) were significantly higher than those in standard EN group (both P < 0.05). The MV time (hours): 122.33±63.91 vs. 155.69±77.06) and ICU stay time (hours): 197.57±70.60 vs. 239.61±84.83) of the immuno-enhancing EN group were markedly shorter than those of the standard EN group (both P < 0.05). Conclusion Compared with standard EN, the immune-enhancing EN emulsion can improve the immune function of critically ill patients with MV, and shorten the duration of MV support and the length of ICU stay.
4.CT and MR imaging diagnosis of intracranial teratomas
Jingwen WU ; Xianlong WANG ; Yanhong LIN ; Lyujin FENG ; Chunxiu JIANG ; Zhibo WEN
Chinese Journal of Neuromedicine 2015;14(9):890-893
Objective To analyze the CT and MR imaging features of intracranial teratomas to improve the diagnostic accuracy.Methods Twenty patients with intracranial teratomas,admitted to and performed surgery in our hospital from January 2010 and January 2014,were chosen;the teratoma was confirmed by histopathology.The CT and MR imaging features,clinical and pathology materials of these patients were retrospectively analyzed.Results Twelve immature teratomas,7 mature teratomas and one teratoma with malignant transformation were noted;18 patients were in the central line area and 2 were not.In the 9 patients performed CT scan,7 showed heterogeneous mass;peritumoral calcification was more common than intratumoral calcification,and it turned out to be round with diameter less than 1 cm,while intratumoral calcification was multifocally strip and patchy.In the 17 patients performed MR imaging,14 showed heterogeneous signal and fatty signal was detected in 3;enhanced MR imaging showed that 6 presented nodular enhancement,3 presented multilocular enhancement markedly,patchy enhancement showed in 2,and one showed marked enhancement in mural nodule and cystic wall.In 8 patients performed diffusion-weighted imaging,7 displayed hypointense to isointense and one demonstrated isointense to hyperintense.Conclusions Intracranial teratoma has some characteristic imaging features,so by combining clinical materials,it should be considered when fatty component is detected in a heterogeneous intensity tumor with multiple cystic change,calcification and a hypointense to isointense signal on DWI;however,pathology is needed to make a definite diagnosis.
5. The situation and associated factors of facility-based HIV testing among men who sex with men in Beijing
Xianlong REN ; Guodong MI ; Yan ZHAO ; Keming ROU ; Dapeng ZHANG ; Le GENG ; Zihuang CHEN ; Zunyou WU
Chinese Journal of Preventive Medicine 2017;51(4):341-346
Objective:
To understand the prevalence of facility-based HIV testing and its associated factors among men who have sex with men (MSM) in Beijing city.
Methods:
An application-based cross-sectional survey was employed to understand HIV site test situation and associated factors. The survey was carried out from May 14th to 21st, 2016. Users of a smart phone application for gay dating were recruited and those eligible for this survey were investigated with an online self-administered questionnaire. Information of demographics, sexual behaviors, facility-based HIV testing history and recreational drug abuses were collected. The multivariate logistic regression was used to make comparison among different groups and assess associated factors.
Results:
A total of 7 494 participants were enrolled in the survey with mean age of (28.81 ± 7.38) years, 87.14% (6 530/7 494) sought sexual partners through internet. The proportion of facility-based HIV testing in 1 year was 42.55% (3 189/7 494), MSM who were 25-29 years had higher proportion of facility-based HIV testing in 1 year, the proportion was 45.56%(1 104/2 423). Among MSM who could insist in using condom during anal sex (50.46% (1 539/3 050)), the proportion of HIV site testing in 1 year was higher. The MSM who reported seeking healthcare for symptoms of a sexually transmitted infections (STIs) in the past year or ever using recreational drug had higher proportion of facility-based HIV testing, the proportions were 56.81% (409/720) and 52.00% (1 340/4 917), respectively. Compared with alone cohabitation, cohabitating was associated with decreased odds of HIV facility-based testing in past 1 year(odds ratio (
6.Distribution of manganese, cobalt and molybdenum in blood and urine among general population in 8 provinces of China.
Yajuan PAN ; Chunguang DING ; Aihua ZHANG ; Banghua WU ; Hanlin HUANG ; Chun ZHU ; Deye LIU ; Baoli ZHU ; Guang XU ; Hua SHAO ; Shanzhuo PENG ; Xianlong JIANG ; Chunxiang ZHAO ; Changcheng HAN ; Hongrong JI ; Shanfa YU ; Xiaoxi ZHANG ; Longlian ZHANG ; Yuxin ZHENG ; Huifang YAN
Chinese Journal of Preventive Medicine 2014;48(9):784-790
OBJECTIVETo evaluated the manganese (Mn), cobalt (Co) and molybdenum (Mo) levels in blood and urine among general population in China, and thereby to analyze their prevalent features.
METHODSFrom 2009 to 2010, a total of 18 120 subjects of general population aged 6-60 years were recruited from 24 districts in 8 provinces in eastern, central and western China mainland, by cluster random sampling method. The information about their living environment and health status were collected by questionnaire, and their blood and urine samples were also collected.Inductive coupled plasma mass spectrometry (ICP-MS) was applied to test the Mn, Co and Mo levels of blood and urine samples, and the Mn, Co, Mo distribution in blood and urine among groups of population in different ages and genders were then analyzed.
RESULTSAmong general population in China, the geometric mean (GM) of Mn concentration in blood was 8.98 µg/L. The Mn concentration in blood among males and females were separately 8.14 µg/L and 9.88 µg/L (Z = -18.84, P < 0.01). The GM of Mn concentration in urine was 0.63 µg/L. The Mn concentration in urine among males and females were separately 0.62 µg/L and 0.63 µg/L (Z = -0.67, P > 0.05). The geometric mean (GM) of Co concentration in blood was 0.194 µg/L. The Co concentration in blood among males and females were separately 0.166 µg/L and 0.225 µg/L (Z = -23.04, P < 0.01). The GM of Co concentration in urine was 0.282 µg/L. The Co concentration in urine among males and females were separately 0.260 µg/L and 0.307 µg/L (Z = -7.35, P < 0.01). The GM of Mo concentration in blood was 0.25 µg/L. The Mo concentration in blood among male and female group were separately 0.27 µg/L and 0.23 µg/L (Z = -5.03, P < 0.01). The GM of Mo concentration in urine was 27.7 µg/L. The Mo concentration in urine among males and females were 29.8 µg/L and 25.6 µg/L (Z = -6.31, P < 0.01), respectively.
CONCLUSIONThe Mn, Co and Mo levels in blood and urine varied by gender and area among general population in China, the study provided basic data evidence for the following Mn, Co and Mo biological monitoring studies in near future.
Adolescent ; Adult ; Child ; China ; epidemiology ; Cobalt ; Environmental Exposure ; Environmental Monitoring ; Female ; Humans ; Male ; Manganese ; Middle Aged ; Molybdenum
7.Distribution of copper and zinc in blood among general population from 8 provinces in China.
Xingfu PAN ; Chunguang DING ; Yajuan PAN ; Aihua ZHANG ; Banghua WU ; Hanlin HUANG ; Chun ZHU ; Deye LIU ; Baoli ZHU ; Guang XU ; Hua SHAO ; Shanzhuo PENG ; Xianlong JIANG ; Chunxiang ZHAO ; Changcheng HAN ; Hongrong JI ; Shanfa YU ; Xiaoxi ZHANG ; Longlian ZHANG ; Yuxin ZHENG ; Huifang YAN
Chinese Journal of Preventive Medicine 2014;48(2):109-113
OBJECTIVETo investigate the level of zinc (Zn) and copper (Cu) in whole blood among general population from 8 provinces in China, and to analyze the characteristics of distribution among different regions.
METHODSThis cross-sectional study was performed in 8 provinces from eastern, middle and western China between 2009 and 2010, including 13 110 subjects from 24 regions, and the blood and urine samples were collected. The ICP-MS was applied to test the content of ICP-MS in blood samples, and the results were used to analyze the characteristics of contents and distributions of Zn and Cu among population from different ages, genders and regions groups.
RESULTSTotally, the mean (95%CI) contents of Cu and Zn in blood were 795 (791-799)µg/L and 3 996(3 976-4 015) µg/L, respectively. The characteristics of distribution of Cu content were as followed, the content of males were lower than it of females (male:767 µg/L; female: 822 µg/L, t = -13.302, P < 0.01). The contents of blood Cu in groups of people aging 6-12, 13-16, 17-20, 21-30, 31-45 and 46-60 years old were separately 860(853-868), 758(748-769), 734(728-734), 782(774-790), 811(795-827) and 820(815-826) µg/L. The differences showed statistical significance (F = 78.77, P < 0.01). The blood Cu content of people in eastern China (800µg/L) were also significantly higher than it in middle (774 µg/L)and western China (782 µg/L) (F = 10.94, P < 0.01). Distribution of blood Zn content showed characteristics as follows: the Zn content was higher in males than in females (male 4 085 µg/L and female 3 908 µg/L, t = 8.78, P < 0.01). The contents of blood Zn in groups of people aging 6-12, 13-16, 17-20, 21-30, 31-45 and 46-60 years old were separately 3 306 (3 261-3 350), 3 888 (3 839-3 937), 3 948 (3 902-3 994), 4 272(4 228-4 315), 4 231(4 180-4 281) and 4 250 (4 205-4 294)µg/L, which showed significant statistical differences (F = 233.68, P < 0.01). The blood Zn content of people in eastern China (3 938 µg/L) were significantly lower than it in middle (4 237 µg/L)and western China (4 105 µg/L) (F = 53.16, P < 0.01). In addition, the study also compared the relation between content of Cu and Zn and the frequency of eating seafood. The results found that the frequency of eating seafood could influence the content of Cu and Zn (Cu: F = 13.54, P < 0.01; Zn: F = 200.20, P < 0.01).
CONCLUSIONThe contents and distributions of Cu and Zn in blood differs among people from different groups in ages, genders and regions. The baseline data of this study provided reliable scientific evidence for further research.
Adolescent ; Adult ; Child ; China ; epidemiology ; Copper ; blood ; Cross-Sectional Studies ; Female ; Humans ; Male ; Middle Aged ; Young Adult ; Zinc ; blood
8.Study of distribution and influencing factors of arsenic in whole blood and urine among population in 8 provinces in China.
Chunguang DING ; Yajuan PAN ; Aihua ZHANG ; Banghua WU ; Hanlin HUANG ; Chun ZHU ; Deye LIU ; Baoli ZHU ; Guang XU ; Hua SHAO ; Shanzhuo PENG ; Xianlong JIANG ; Chunxiang ZHAO ; Changcheng HAN ; Hongrong JI ; Shanfa YU ; Xiaoxi ZHANG ; Longlian ZHANG ; Yuxin ZHENG ; Huifang YAN
Chinese Journal of Preventive Medicine 2014;48(2):97-101
OBJECTIVETo evaluated the levels of arsenic (As) in blood and urine among general population in China and analyze its influencing factors.
METHODSA total of 18 120 subjects from general population aged 6-60 years were recruited from 24 districts in 8 provinces in eastern, central and western China mainland from 2009 to 2010, by cluster random sampling method. Blood samples and urine samples were collected, the information of the life-style was collected by questionnaire.Inductive coupled plasma mass spectrometry was applied to test the As level in the samples, and the distribution of As in blood and urine for different ages, genders, areas and life habits were then analyzed.
RESULTSThe geometric mean (GM) of blood As concentration among general population was 2.33 µg/L;the GM of blood As in male (2.35 µg/L) was higher than and female (2.30 µg/L) (Z = -1.42, P < 0.05); from eastern, central to western China, the blood As level were 2.94, 1.30 and 0.98 µg/L (χ(2) = 643.22, P < 0.05) , respectively; the GM in smokers (2.84 µg/L) was higher than non-smokers (2.27) (Z = -6.28, P < 0.05) ;the seafood consumer had a higher blood As level (2.59 µg/L) than people not consuming seafood (1.47 µg/L) (Z = -23.68, P < 0.05). The urine As level of the whole population was 13.72 µg/L;while its GM in male (14.10 µg/L) was higher than female (13.33 µg/L) (Z = -3.94, P < 0.05); the values from eastern, central to western China were 14.14, 16.02 and 9.57 µg/L (χ(2) = 353.89, P < 0.05), respectively;the level in smokers (16.06 µg/L) was higher than nonsmokers (13.70 µg/L) (Z = -2.63, P < 0.05); the level in seafood consumers (14.82 µg/L) was higher than people not consuming seafood (10.99 µg/L) (Z = -3.20, P < 0.05). The blood As level had a positive correlation with urine As level (correlation coefficient:0.285, P < 0.05).
CONCLUSIONThe As level in blood and urine varied by gender and area among general population in China, and related to life-styles. There was a positive correlation between As level in blood and that in urine.
Adolescent ; Adult ; Arsenic ; blood ; urine ; Child ; China ; epidemiology ; Cross-Sectional Studies ; Environmental Exposure ; Female ; Humans ; Male ; Middle Aged ; Sentinel Surveillance ; Young Adult
9.Study of distribution and influencing factors of lead and cadmium in whole blood and urine among population in 8 provinces in China.
Chunguang DING ; Yajuan PAN ; Aihua ZHANG ; Banghua WU ; Hanlin HUANG ; Chun ZHU ; Deye LIU ; Baoli ZHU ; Guang XU ; Hua SHAO ; Shanzhuo PENG ; Xianlong JIANG ; Chunxiang ZHAO ; Changcheng HAN ; Hongrong JI ; Shanfa YU ; Xiaoxi ZHANG ; Longlian ZHANG ; Yuxin ZHENG ; Huifang YAN
Chinese Journal of Preventive Medicine 2014;48(2):91-96
OBJECTIVETo evaluate the levels of lead (Pb) and cadmium (Cd) in blood and urine among general population in China, and thereby analyze their prevalent features.
METHODSA total of 18 120 subjects from general population aged 6-60 years were recruited from 24 districts in 8 provinces in eastern, central and western China mainland from 2009 to 2010, by cluster random sampling method. The blood samples and urine samples of these people were collected. The questionnaire survey was used to collect the information of the living environment and health conditions.Inductive coupled plasma mass spectrometry was applied to test the Pb and Cd levels in the samples, and the distribution of Pb and Cd in blood and urine for different ages, genders, areas and life habits were then analyzed.
RESULTSAmong the general population in China, the geometric mean (GM) of blood Pb concentration was 34.9 µg/L; the GM of blood Pb in male and female groups were 40.1 and 30.4 µg/L (Z = -28.05, P < 0.05), respectively; the GM from eastern, central and western China were 31.2, 38.8 and 58.9 µg/L (χ(2) = 1 483.33, P < 0.05) , respectively. The GM of urine Pb of the whole population was 1.05 µg/L;while the GM in male and female groups were 1.06 µg/L and 1.05 µg/L (Z = -0.73, P > 0.05) , respectively;the values from eastern, central and western China were 0.76, 2.85 and 3.22 µg/L (χ(2) = 1 982.11, P < 0.05), respectively. The GM of blood Cd concentration among general population was 0.49 µg/L; and the values in male and female group were 0.60 and 0.41 µg/L (Z = -11.79, P < 0.05) , respectively; the GM from eastern, central and western China were 0.45, 0.65 and 0.67 µg/L (χ(2) = 69.87, P < 0.05), respectively; the GM of urine Cd concentration of the whole population was 0.28 µg/L, while the GM in male and female groups were 0.29 and 0.28 µg/L (Z = -3.86, P < 0.05), respectively; the values from eastern, central and western China were 0.29,0.42 and 0.18 µg/L (χ(2) = 402.76, P < 0.05), respectively. the Spearman's rank correlation coefficient for Cd in blood and Cd in urine was 0.22, for Pb in blood and Pb in urine was 0.21. Both the correlations were statistic significant (P < 0.05).
CONCLUSIONThe Pb and Cd levels in blood and urine were relatively higher among general population in China varying by gender and area. There were positive correlations between Pb and Cd levels in blood and those in urine.
Adolescent ; Adult ; Cadmium ; blood ; urine ; Child ; China ; epidemiology ; Cross-Sectional Studies ; Environmental Exposure ; Female ; Humans ; Lead ; blood ; urine ; Male ; Middle Aged ; Sentinel Surveillance ; Young Adult
10.Effect of data missing on population based viral load survey in HIV infected men who have sex with men sampled in 16 large cities, China
Zhen JIANG ; Zhi DOU ; Zhihua YAN ; Weilu SONG ; Yun CHEN ; Xianlong REN ; Jun CHEN ; Wei CAO ; Jie XU ; Zunyou WU
Chinese Journal of Epidemiology 2017;38(9):1169-1173
Objective To analyze the effect of missing data in population based viral load (PVL) survey in HIV infected men who have sex with men (MSM) sampled in 16 cities in China.Methods The database of 3 virus load sampling survey conducted consecutively in HIV infected MSM population in 16 large cities (Beijing,Shanghai,Nanjing,Hangzhou,Wuhan,Chongqing,Kunming,Xi' an,Guangzhou,Shenzhen,Narning,Urumuqi,Harbin,Changchun,Chengdu and Tianjin) during 2013-2015 was used.SPSS 17.0 software was used to describe distribution of the missing data and analyze associated factors.Results A total of 12 150 HIV infected MSM were randomly selected for the surveys,in whom,9 141 (75.2%) received virus load tests,while 3 009 (24.8%) received no virus load tests,whose virus load data missed.The virus load data missing rates in MSM with or without access to antiretroviral therapy (ART) were 11.5% (765/6 675) and 39.4% (2 060/5 223) respectively,and the virus load data missing rates were 21.9% (1 866/8 523) and 28.4% (959/3 374),respectively,in local residents and non-local residents (migrants).Conclusions The analysis indicated that the data missing occurred in the virus load survey in HIV infected MSM population.ART status and census registering status were the main influencing factors.Data missing could influence the accurate evaluation of community viral load (CVL) and population viral load (PVL) levels in HIV infected MSM in China.