1.Grade of membership analysis of multidimensional health status in adult twins
Yan NING ; Wenyan JI ; Yonghua HU ; Yueqin HUANG ; Weihua CAO ; Jun LV ; Ying QIN ; Zengchang PANG ; Shaojie WANG ; Liming LI
Chinese Journal of Disease Control & Prevention 2009;0(02):-
Objective To construct profiles of health status based upon physical,mental and social support items in adult twins of Qingdao.Methods Grade of Membership(GoM) model was applied to a set of 31 indicators to construct ideal profiles.Results Four health profiles were identified: pure type Ⅰ(healthy),pure type Ⅱ(personality disorders),pure type Ⅲ(psychological symptoms) and pure type Ⅳ(physiological symptoms).The most frequently occurring combination in this population was profile Ⅰ,Ⅱ,Ⅳ(14.74%),followed by profile Ⅰ,Ⅱ,Ⅲ,Ⅳ(13.44%),and then type Ⅰ(11.08%).Only 13.56% of subjects fell completely into one single pure type.Conclusions One healthy type and three non-healthy types are determined.Most individuals exhibit some of the characteristics of two or more types,holding partial membership in multiple categories.
3. Association of lipid parameters with insulin resistance in different glycemic among the elderly population
Shaojie PANG ; Qingqing MAN ; Shuang SONG ; Pengkun SONG ; Zhen LIU ; Yuqian LI ; Li HE ; Wenhua ZHAO ; Jian ZHANG
Chinese Journal of Preventive Medicine 2018;52(6):629-635
Objective:
This study was to analyze the association of lipid parameters with insulin resistance of Chinese elderly population in different glycemic status.
Methods:
Data were from China National Chronic Diseases and Nutrition Survey (2015). A total of 15 535 participants aged 60 and above who had completed survey questionnaire, physical examination, fasting blood biochemistry and insulin measurements were included in this study. According to the American Diabetes Association (2010) criteria, the participants were divided into normal glucose regulation, pre-diabetes, newly-diagnosed diabetes and previously-diagnosed diabetes. Multivariable logistic regression was preformed to assess the effects of lipid parameters on insulin resistance in different glycemic among the elderly population.
Results:
The proportion of normal glucose regulation, pre-diabetes, newly-diagnosed diabetes and previously-diagnosed diabetes was 50.46% (
4.A twin study in Qingdao and Lishui:heritability of exercise participation and sedentary behavior
Feng ZHANG ; Wenjing GAO ; Canqing YU ; Jun LYU ; Shengfeng WANG ; Siyan ZHAN ; Yonghua HU ; Zengchang PANG ; Weijian CHEN ; Shaojie WANG ; Rongfu CHEN ; Weihua CAO ; Liming LI
Chinese Journal of Epidemiology 2014;(6):630-634
Objective To investigate both genetic and environmental influences on the exercise participation and sedentary behavior in Qingdao,Shandong province and 326 in Lishui, Zhejiang province. Methods 568 twin pairs,including 242 in Qingdao and 326 in Lishui,were studied. Exercise participation was measured by two questions on the frequency and intensity and then divided into two groups. Sedentary behavior was measured by one question as‘how long do you spend on sitting every day’. Variance component models based on twins was used to estimate the genetic and environmental factors on these traits. Results The average age in monozygotic twins was(41.14 ± 10.11)while in dizygotic twins it was(41.23 ± 9.89). Genetic factors accounted 78%(35%-96%)and 59%(0-94%)for exercise participation variance in Qingdao and Lishui in people aged between 20 and 40. However,there were no heritability noticed on physical activity in people older than 40 years of age. Rates of heritability on sedentary behavior in Qingdao and Lishui were 68%(59%-75%)and 32%(7%-62%),respectively. Conclusion Results from the study suggested that sedentary behavior in Chinese people was influenced by genetic factors,which could also explain much of the exercise participation variance in people aged between 20 and 40.
5.A twin study in Qingdao and Lishui: heritability of exercise participation and sedentary behavior.
Feng ZHANG ; Wenjing GAO ; Canqing YU ; Jun LYU ; Shengfeng WANG ; Siyan ZHAN ; Yonghua HU ; Zengchang PANG ; Weijian CHEN ; Shaojie WANG ; Rongfu CHEN ; Weihua CAO ; Liming LI
Chinese Journal of Epidemiology 2014;35(6):630-634
OBJECTIVETo investigate both genetic and environmental influences on the exercise participation and sedentary behavior in Qingdao, Shandong province and 326 in Lishui, Zhejiang province.
METHODS568 twin pairs, including 242 in Qingdao and 326 in Lishui, were studied. Exercise participation was measured by two questions on the frequency and intensity and then divided into two groups. Sedentary behavior was measured by one question as 'how long do you spend on sitting every day'. Variance component models based on twins was used to estimate the genetic and environmental factors on these traits.
RESULTSThe average age in monozygotic twins was (41.14 ± 10.11)while in dizygotic twins it was (41.23 ± 9.89). Genetic factors accounted 78% (35%-96%) and 59% (0-94%) for exercise participation variance in Qingdao and Lishui in people aged between 20 and 40. However, there were no heritability noticed on physical activity in people older than 40 years of age. Rates of heritability on sedentary behavior in Qingdao and Lishui were 68% (59%-75%) and 32% (7%-62%), respectively.
CONCLUSIONResults from the study suggested that sedentary behavior in Chinese people was influenced by genetic factors, which could also explain much of the exercise participation variance in people aged between 20 and 40.
Adult ; China ; Cross-Sectional Studies ; Exercise ; Female ; Follow-Up Studies ; Humans ; Male ; Middle Aged ; Sedentary Lifestyle ; Surveys and Questionnaires ; Twins ; genetics ; Young Adult
6. A cohort study on the association between dietary patterns which benefit for normal kidney function and the cognitive performance in the Chinese elderly
Zhaoxue YIN ; Zeping REN ; Gang JING ; Dan LIU ; Jian ZHANG ; Zhuoqun WANG ; Mei ZHANG ; Yi ZHAI ; Pengkun SONG ; Yanfang ZHAO ; Shaojie PANG ; Shengquan MI ; Wenhua ZHAO
Chinese Journal of Epidemiology 2019;40(4):427-432
Objective:
To explore the association between dietary pattern which benefit for normal kidney function and the risk of cognitive decline or impairment in the elderly.
Methods:
In 2015, subjects aged 60 and over from four counties in the Nutrition and Chronic Disease Family Cohort project, were followed up in 2017. Cognitive function was repeatedly assessed, using the Mini Mental State Evaluation (MMSE) scale. Dietary pattern that benefit for normal kidney function was extracted, using the reduced rank regression method and followed by logistic regression models to explore the associations between scores that showing the kidney function on dietary patterns and the risk of cognitive deterioration and impairment in two years among those who were with normal cognition in 2015.
Results:
Dietary pattern that benefit for normal kidney function, was characterized by high consumption of cereal, vegetables, legume and fruits but with less meat and soy products. Comparing with the group with lowest score quartile on this dietary pattern, the risk of cognitive deterioration in the highest quartile group was significantly low (
7. Association between fruit consumption and stroke in adults in Qingdao: a prospective study
Xiaocao TIAN ; Shaojie WANG ; Shanpeng LI ; Yu GUO ; Zheng BIAN ; Silu LYU ; Wenying QU ; Jiben LIU ; Ruqin GAO ; Zengchang PANG ; Liming LI ; Zhengming CHEN
Chinese Journal of Epidemiology 2019;40(5):515-520
Objective:
To understand the fruit consumption of adults of Qingdao and examine the association between fruit consumption and stroke.
Methods:
We analyzed baseline data and stroke incidence of the participants who were aged 30-79 years and had been enrolled into the China Kadoorie Biobank (CKB) study from Qingdao city. Cox proportional hazards regression model was conducted to estimate the association of fruit consumption with risk of stroke.
Results:
A total of 35 509 participants were investgated in the baseline survey. Ratio of male to female was 1∶1.27, and the average age was (50.3±10.2) years. Respondents with higher frequency of fruit consumption were younger, more women, with higher education level and higher income (
8. Blood pressure changes in 18-59 years old adults in rural area of Shanxi province, China
Yanfang ZHAO ; Chenglian LI ; Xiangyang WEI ; Yanbin WEN ; Zhuoqun WANG ; Mei ZHANG ; Yi ZHAI ; Jian ZHANG ; Pengkun SONG ; Shaojie PANG ; Zhaoxue YIN ; Shengquan MI ; Wenhua ZHAO
Chinese Journal of Epidemiology 2019;40(5):548-553
Objective:
To analyze the blood pressure changes of adults aged 18-59 years in rural area of Shanxi province based on a cohort study, and provide reference for the study of the blood pressure level of rural residents and hypertension prevention and control in rural areas in China.
Methods:
Data were obtained from Shanxi Nutrition and Chronic Disease Family Cohort from 2002 to 2015. Subjects aged <18 years or ≥60 years and individuals with hypertension at baseline survey in 2002, and those who had taken antihypertensive drugs for nearly two weeks during the follow-up survey in 2015 were excluded from the study. A total of 1 629 subjects aged 18-59 years were included in the analyses of the blood pressure level and its change from the baseline survey in 2002 to follow-up survey in 2015.
Results:
The systolic blood pressure (SBP) of the subjects increased from (122.7±10.4) mmHg in 2002 to (132.8±17.6) mmHg in 2015 and the diastolic pressure (DBP) increased from (72.7±6.9) mmHg in 2002 to (78.8±10.3) mmHg in 2015. The SBP in men and women increased with growth rates of 6.7% and 9.5%. While DBP in men and women increased with growth rates of 9.3% and 7.8%. The SBP levels of those aged 18-, 30-, 40- and 50-59 years increased with growth rates of 5.0%, 6.7%, 9.4% and 11.8%. While the DBP of these age groups increased with growth rates of 12.2%, 8.2%, 8.2% and 6.5%.
Conclusions
The blood pressure of adults aged 18-59 years old in rural area of Shanxi showed a substantially increasing trend. The mean increase level of SBP in women was higher than that in men, and increased with age. While the mean increase level of DBP in men is higher than that in women, and decreased with age.