Objective To investigate the correlation of short-term systolic blood pressure variability (SBPV) with esti?mated glomeruar filtration rate (eGFR) in the elderly. Methods In physical examination for the third time of kailuan group, the method of cluster sampling was used to collect randomly retired employees, age≥60 in kailuan group. The 24-hour am?bulatory blood pressure monitoring was given to these objects. Finally, 1 405 participants with integral data were recruited in?to the survey. SBPV indices were standard deviation of systolic blood pressure (SD), variability independent of the mean (VIM), maximum-minimum difference (MMD), and average real variability (ARV). Multivariate stepwise linear regression models were used to analyze the influence of short-term SBPV on eGFR. Results (1) Among 1 405 participants (67.16 ± 5.82) years, 933 individuals (66.4%) were male and 472 (33.6%) were female. (2) Study population were divided into four groups based on the 24-hour mean SBP, daytime mean SBP, night time mean SBP (group 1:mean SBP<120 mmHg, group 2:120≤mean SBP<140 mmHg, group 3:140≤mean SBP<160 mmHg, group 4:mean SBP≥160 mmHg), respectively. Values of SD, MMD and ARV, but not VIM were increased with increased mean SBP. (3) The participants were grouped according to the median SBPV with between-group comparison of the eGFR. The average eGFR levels were lower in the high 24-hour SB?PV group (SD, VIM, MMD and ARV), day-time SBPV group (SD, VIM, MMD and ARV) and night-time SBPV group (SD, MMD and ARV) than those in the low SBPV groups (P<0.05). (4) Multivariate stepwise linear regression showed that eGFR increased with 3 indices of 24-hour SBPV (SD, MMD and ARV) and 2 indices of day-time SBPV (MMD and ARV) but not for night-time SBPV (β=-0.07,-0.11,-0.07,-0.12 and-0.07, respectively). Conclusion There is a certain degree of asso?ciation between short-term SBPV indices and eGFR.

Objective:To explore whether hyperuricemia was an independent risk factor for all-cause mortality in patients with atrial fibrillation.Methods:Patients with atrial fibrillation who were confirmed by 12-lead electrocardiogram in 11 hospitals of Kailuan Group from 2006 to 2007 were selected as the research objects.All patients were followed up by prospective cohort study, and all-cause deaths were observed.The last follow-up time was December 31, 2013.Kaplan-Meier curve and Cox proportional hazards model were used to analyze and compare the risk of all-cause mortality in patients with atrial fibrillation in the hyperuricemia group compared with the normal uric acid group.Results:A total of 388 community-based patients with atrial fibrillation were included in the final statistical analysis, with 136 all-cause deaths occurred during an average follow-up period of 6.93 years.The incidence of all-cause mortality was 9.24% per year(36/390)in the hyperuricemia group, whereas 5.16% per year(100/1 937) in the normal uric acid group.In the univariate Cox proportional risk model analysis, the risk ratio (95% CI) of all-cause death in patients with atrial fibrillation in the hyperuricemia group (95% CI) was 1.84(1.26-2.69) times that in the normal uric acid group ( P<0.01). After adjusting for potential confounding variables, the adjusted risk ratio (95% CI) of all-cause death in patients with atrial fibrillation in hyperuricemia group was still 1.94(1.32-2.85) times of that in normal uric acid group ( P<0.01). After adjustment for potential confounding variables, for each 0.01 g/L increase in uric acid (1 g/L=5 950 μmol/L), the risk of all-cause death in patients with atrial fibrillation increased by 1.15 (1.05-1.26) times ( P<0.01). Conclusion:Hyperuricemia was an independent risk factor for all-cause death in patients with atrial fibrillation in community.

Objective: To investigate the relationship between long-, short-term systolic blood pressure variability (SBPV) and renal damage in elder population. Methods: Our research was conducted in the 3rd physical examination of healthy population from Kailuan group by cohort study. Cluster sampling was used by 25% ratio in subjects≥60 years of age to monitor their 24-hour ambulatory blood pressure and finally, 2464/3064 participants with inclusion criteria were recruited. SBPV indexes as standard deviation of systolic blood pressure (SSD), variability independent of the mean (VIM), maximum-minimum difference (MMD) and average real variability (ARV) were examined; renal damage indexes as estimated glomerular filtration rate (eGFR) and microalbuminuria (ALBU) were detected. Relationships between different long-term, short-term SBPV indexes and eGFR, ALBU were studied by multi-liner regression analysis. Results:①The mean age of 2464 participants was (67.41 ± 6.05) years including 1667 (67.7%) male and 797 (32.3%) female.②Multi-liner regression analysis indicated that different long-term SBPV indexes were not related to eGFR and ALBU; 24h SBPV in all 4 indexes and day-time SSD, MMD, ARV were negatively related to eGFR; 24h ARV and day-time MMD, ARV were positively related to ALBU; night-time SBPV indexes were not related to eGFR and ALBU.Conclusion: Different short-term SBPV indexes were, at certain point related to eGFR and ALBU

Objective To investigate the incidence of miocardial infarction and risk factors in patients with different levels TG.Methods From June 2006 to October 2007,Kailuan coal mine group conducted an on-the-job and retired workers were took physical examination in Kailuan area,and their results were used in our study(n=100 271).According to different levels of TG,all cases were divided into five groups(TG1-5):TG1 group(0.0125 kg/m2,FBG≥6.1 mmol/L,HDL-C<1.5 mmol/L were all the risk factors for myocardial infarction (P<0.05).Cox proportional hazards regression model showed that after adjustment for sex,age and other factors,with the increase in TG levels.Conclusion In study of Kailuan crowd,the increased fasting triglycerides increase the risk of myocardial infarction,and the risk factors for myocardial infarction are age,BMI,FBG and HDL-C.

Objective To investigate the relationship between waist circumference and new-onset non-alcoholic fatty liver disease in non-obese patients with diabetes mellitus. Methods A total of 1 950 patients with diabetes mellitus, who determined fasting plasma glucose(FPG)≥7.0 mmol/L or who were using hypoglycemic drugs and FPG<7.0 mmol/L,and body mass index (BMI)< 25 kg/m2, was selected in this study using prospective cohort method. Patients were divided into five groups according to the baseline data of waist circumference, including waist circumference<78 cm (A group, n=387), 78 cm90 cm (E group, n=421). Multiple Logistic regression model was used to analyze influential factors of new-onset non-alcoholic fatty liver disease in non-obese patients with diabetes mellitus. Re?sults The average duration of follow-up was(47.24±5.13) months. The incidence rate was 11.85%(231/1 950) in patients with non-alcoholic fatty liver disease. The incidence rates were 6.98%, 9.28%, 12.38%, 14.19%and 15.68%in A, B, C, D and E groups, and which were increased with the increased waist circumference (P<0.05). Results of multiple Logistic re?gression model analysis showed that compared with A group,OR values were 1.97 and 2.19 in D and E groups respectively (P<0.05). Conclusion Waist circumference≥85 cm was the risk factors of new-onset non-alcoholic fatty liver disease in non-obese patients with diabetes mellitus.

Objective To investigate the relationship between high-sensitivity C-reactive protein (hsCRP) and retinal vascular diameter.Methods This study was a cross-sectional study,the population was from the Kailuan study (clinical trial research registration NO.:ChiCTR-TNC-1100 1489) in 2012-2013 (age ≥ 40 years).All the people was checked by cardiovascular and epidemiological examination,of which 3 447 people had an analytical results of fundus color photography.The retinal vascular diameter was analyzed by software.Take the value of hsCRP 1％ to 99％ points and 3 363 people were finally included in the statistical analysis.The mean age of 3 363 people (male 1 880,female 1 483) was 56.69± 10.10 years old.The correlation between hsCRP and central retinal artery equivalent (CRAE),central retinal vein equivalent (CRVE),arteriovenous ratio (AVR) were evaluated by Spearman correlation coefficient.Multivariate linear regression analysis was used to futher analyze the association between hsCRP and retinal fundus diameter parameters.Results The median value of hsCRP was 1.10 (0.50,2.21) mmo/L,CRAE was (174.16±24.36) μm,CRVE was (282.70±26.32) μm,AVR was 0.62-±0.09.Spearman correlation analysis showed that hsCRP was positively correlated with CRVE (r =0.052,P =0.003) and negatively correlated with AVR (r =-0.052,P =0.002).The non-normal variables hsCRP were transformed into continuous variables lghsCRP,and CRAE,CRVE and AVR were used for multivariate linear regression analysis.After a number of factors were gradually corrected,the results showed that association between lghsCRP and CRVE (β =3.428) or AVR (β =-0.006) was statistically significant (P＜0.05).LghsCRP was a risk factor for CRVE both in men and women after the calculation of gender stratification.Conclusions CRVE increased and AVR decreased with the increase of hsCRP.The changes of retinal vascular diameter may be associated with hsCRP as a marker to predict cardiovascular and cerebrovascular disease.

Objective: To investigate the impact of improved AHA cardiovascular health behavior score (CHS) on short-time systemic blood pressure variability (SBPV) in elder population.
Methods: A total of 2464 participants ≥ 60 years from 3 hospitals of Kailuan area were taken for cohort study. The participants had no cardiovascular disease, not taking anti-psychotic drug, Parkinson treatment drug, anti-depression drug and analgesic drug within 2 weeks. All participants received 24-hour ambulatory blood pressure monitoring (ABPM) and the 24-hour, day-time, night-time SBPV were deifned by the standard deviation of 24-hour, day-time, night-time systolic blood pressure. The influence of CHS on SBPV was studied by multi-linear regression analysis. Improved cardiovascular health behavior and factors implied as changing the vegetable intake amount to salt amount by American Humane Association, 2010; boundary of BMI based on《Guidelines for prevention of overweight and obesity in Chinese adults》; status of exercise was deifed as the ideal status: ≥80 min/week, general status: < 80 min/week and bad status: no exercise.
Results: Finally, 1812 participants were recruited for survey and they were divided into 3 groups according to improved CHS: Group①, CHS (0-4) points,n=56, Group②, CHS (5-9) pointsn=1600 and Group③, CHS (10-14) points,n=156. The 24-hour SBPV in Groups①,②and③were 16.02 mmHg, 14.91 mmHg and 13.18 mmHg; day-time SBPV were 15.42 mmHg, 14.50 mmHg and 13.22 mmHg; night-time SBPV were 12.68 mmHg, 11.44 mmHg and 10.16 mmHg, allP<0.05. Multi-linear regression analysis indicated that with adjusted confounding factors, with 1 point of CHS elevation, the 24 hour-, day-time, night-time SBPV would reduce for 0.20 mmHg, 0.19 mmHg and 0.37 mmHg respectively, allP<0.05.
Conclusion: CHS was negatively related to short-time SBPV in elder population.

Objective To explore the relationship between‘ideal’cardiovascular behaviors and factors and the incidence of hypertension. Methods A prospective cohort study including 52 133 workers who had participated in the 2006-2007 Kailuan health examination without history of cerebral infraction,myocardial infarction or hypertension but with complete data,was carried out. All workers were followed on their occurrence of hypertension. According to the AHA definition of‘ideal’ cardiovascular health behaviors and factors,the cumulative incidence rates of hypertension in different groups were calculated under the life table method,and compared by Log-rank test,Cox proportional hazards regression was used to calculate the hazard rations and 95% confidence intervals for baseline behaviors and factors. Results The cumulative incidence rates of hypertension according 0-1,2,3,4, 5-7 ideal cardiovascular health behaviors and factors were 65.72%,59.14%,54.59%,50.24% and 34.22%,respectively in the 0-1,2,3,4,5-7 groups. Data from the Cox proportional hazards model showed that after adjusting for age,education level and family history of hypertension,the ones who had 2,3,4,5-7 ideal cardiovascular behaviors/factors were 0.75,0.69,0.63,0.36 times more than those who had 0-1 ideal behaviors. Conclusion The incidence of hypertension and risk reduced along with the increase of ideal cardiovascular health behaviors and factors.

Objective To explore the association between serum uric acid (SUA) and all-cause mortality in men. Methods In this prospective cohort study,data being used was derived from the Kailuan study cohort. A total of 81 110 male workers who had taken part in the Kailuan physical examination were enrolled. Subjects with previous myocardial infarction,stroke,cancer, eGFR<30 ml/(min·1.73 m2)accidental deaths and those ever used drugs that seemed to have showed an effect on blood uric acid,were excluded. All the information was gathered from a unified questionnaire,measured by blood biochemistry and with the mean period of follow up as(47.5±4.3) months. Based on the 2006-2007 SUA value,observed objects were divided into five groups,with multivariate Cox proportional hazard regression analysis used to estimate the relationship between SUA and all-cause mortality in men. Results 1)At the end of the follow-up period in 2010-2011, the number of deaths were 315,278,243,292 and 341 among the different SUA quinte,with incidence rates of all-cause mortality as 2.43%,2.36%,1.96%,2.42%and 2.92%,respectively. 2)Data from the Single factor Cox proportional hazard regression analysis showed that,when comparing with the third quinte,HR values of the all-cause mortality were 1.32(1.11-1.56),1.19(1.00-1.41),1.20(1.01-1.43)and 1.41(1.19-1.66)in other four groups,respectively. 3)When factors were adjusted for age, systolic blood pressure,diastolic blood pressure,body mass index,triglyceride,total cholesterol, high-density lipoprotein cholesterol, low density lipoprotein cholesterol, fasting glucose, high-sensitivity C-reactive protein,smoking history and history of drinking,education,profession, economy,etc.,results from the Multiple Cox proportional hazard regression analysis showed the HR values of the all-cause mortality were 1.26(1.06-1.51),1.20(1.01-1.44),1.25(1.05-1.49),1.42 (1.19-1.68) in other four groups,respectively,comparing to the third quinte. Conclusion Using SUA as the independent risk factor of all-cause mortality,the exceptional levels of SUA were associated with an increasing risk for all-cause mortality while the association of SUA with all-cause mortality appeared an“U”shaped curve.

Objective To investigate the effects of different dietary patterns on brachial ankle pulse wave velocity in northern industrial cities. Methods According to the selection criteria,from 2014 to 2015, 22436 health checkup persons were selected as the subjects of Kailuan Group,they were followed up with health examination and questionnaire investigation, at the same time, the brachial ankle pulse wave velocity was detected. According to the dietary advice given by the Chinese dietary guidelines,the proportion of animal and plant food in the food frequency questionnaire and the supply of nutrients are divided into 4 groups,which are the traditional Chinese diet group (3 585 cases),the Western diet group (13 639 cases),the balanced diet group (1 309 cases),the Mediterranean diet group (3 903 cases). Logistic multivariate regression analysis was used to analyze he risk factors of atherosclerosis. Results The mean value of brachial ankle pulse wave velocity in 22 436 cases was ( 1 462. 46 ± 320. 69) cm/s, and the incidence of peripheral arteriosclerosis was 50. 78%(11 392/22 436). The incidence of arteriosclerosis around the balanced diet group, the Mediterranean diet group,the traditional Chinese diet group and the Western diet group were 48. 82%( 639/1 309), 49. 12%(1 917/3 903),50. 49%(1 810/3 585),51. 51%(7 026/13 639),and the difference between the groups was statistically significant (P＝0. 024); after adjusting other related risk factors,compared with the balanced diet group,the risk of peripheral arteriosclerosis in the Mediterranean diet group,the traditional diet group and the Western diet group was 121(95%CI:0. 557～2. 258),1. 015(95%CI:0. 663～1. 554),1. 033(95%CI:0. 677～1. 575), respectively. Conclusion The incidence of peripheral arteriosclerosis increased gradually in the balanced diet group,the Mediterranean diet group,the Chinese traditional diet group and the Western diet group, but there was no statistical significance in the risk of peripheral arteriosclerosis after adjusting other related risk factors. This Conclusion requires more large samples,long-term follow-up study to further confirm.