2.Physical Activity and Sedentary Behaviors among Chinese Children: Recent Trends and Correlates.
Xi YANG ; Alice Waiyi LEUNG ; Russell JAGO ; Shi Cheng YU ; Wen Hua ZHAO
Biomedical and Environmental Sciences 2021;34(6):425-438
Objective:
This study was aimed at examining the trends and correlates of physical activity (PA) and sedentary behaviors among Chinese children.
Methods:
A total of 4,341 subjects (6,936 observations) aged 6-17 years who participated in the China Health and Nutrition Survey (2004-2015) were included. Of the subjects, 41% participated in the survey twice or more. Random-effects ordinal regression models and repeated-measures mixed-effects models were used to examine the PA trends. Quantile regression models were applied to examine the factors influencing PA and sedentary behaviors.
Results:
From 2004 to 2015, the prevalence of physical inactivity among Chinese children aged 6-17 years increased by 5.5% [odds ratio (
Conclusions
A declining PA trend among Chinese children aged 6-17 years was observed from 2004 to 2015, and certain subgroups and geographical areas are at higher risk of physical inactivity.
Adolescent
;
Asian Continental Ancestry Group/statistics & numerical data*
;
Child
;
Child Behavior/ethnology*
;
China/epidemiology*
;
Exercise
;
Female
;
Humans
;
Male
;
Nutrition Surveys
;
Regression Analysis
;
Sedentary Behavior/ethnology*
3.Recent Trends in Sedentary Behaviors among Chinese Children According to Demographic and Social Characteristics.
Xi YANG ; Wai Yi LEUNG ; Yuan Sheng CHEN ; Yi Fei OUYANG ; Wen Hua ZHAO
Biomedical and Environmental Sciences 2021;34(8):593-605
Objective:
This study aims to explore trends in sedentary behavior among Chinese children aged 6-17 years per demographic and social characteristics.
Methods:
A total of 4,341 children aged 6-17 years who participated in the
Results:
From 2004 to 2015, sedentary time among children aged 6-17 years increased from 23.9 ± 0.6 h/week to 25.7 ± 0.6 h/week (
Conclusions
Sedentary time among Chinese children aged 6-17 years showed an upward trend from 2004 to 2015, especially among children residing in rural areas and regions with low urbanization levels.
Adolescent
;
Asian Continental Ancestry Group
;
Child
;
China
;
Female
;
Health Surveys
;
Humans
;
Male
;
Sedentary Behavior
;
Socioeconomic Factors
;
Urbanization
4.Analysis of varieties and standards of Saxifragaceae medicinal plants used in Tibetan medicine.
Jia-Mei XIANG ; Guo-Yue ZHONG ; Wei JIANG ; Gang REN
China Journal of Chinese Materia Medica 2021;46(2):488-493
On the basis of literatures and standards relating to Tibetan medicine, the varieties, origin, standards and efficacy of Saxifragaceae plant used in Tibetan medicine were summarized. According to the findings, 75 species(including varieties) in 8 genera of Saxifragaceae plants, involving 21 varieties, are used in Tibetan medicine. Among them, 9 commonly used varieties, namely Songdi, Sedi, Yajima, Aoledansaierbao, Jiansidawu, Saiguo, Katuer, Sangdi, Maoqinghong, are recorded in Chinese Pharmacopoeia, Ministry Standards for Tibetan Medicine, Tibetan Medicine Standards and other local standards, accounting for 42.9% of the total number of varieties. Tibetan names, Tibetan translation of Chinese names, as well as original plant of Tibetan medicine varieties are quite different in relevant Tibetan medicine standards and literatures, which resulted in common phenomena of synonym and homonym. The standards of most varieties only involve characters, and microscopic, physical and chemical identification, with low quality standards. Based on the results of the analysis, this paper suggests strengthening surveys on herbal textual research, resources and current utilization of Saxifragaceae plants used in Tibetan medicine, summarizing the varieties, establishing improved quality standards, and perfor-ming a comparative study on therapeutic material basis and biological activity of different original plants, in order to promote rational use of these medicinal plant resources, and ensuring the accuracy, safety, and effectiveness of clinical medication.
Asian Continental Ancestry Group
;
Drugs, Chinese Herbal
;
Humans
;
Medicine, Tibetan Traditional
;
Plants, Medicinal
;
Reference Standards
;
Saxifragaceae
8.Guideline on optimal blood pressure range for Chinese oldest old.
Chinese Journal of Preventive Medicine 2021;55(3):335-338
Hypertension is a major problem of public health that endangers the health of the oldest old. However, the current guidelines for hypertension management do not uniformly diagnose hypertension among the oldest old, nor recommend a normal blood pressure range, which is not convictive enough to support the decision making to the prevention of blood pressure-related adverse events. This guideline gives guiding opinions on optimal blood pressure range for the Chinese oldest old, which applies to the staff of medical and health institutions at all levels nationwide to evaluate the blood pressure levels of the oldest old. It includes the sections of general principles, methods and standards of blood pressure evaluation, measurement conditions, specifications of blood pressure measurement, implementation approaches, etc. The guideline has important directive significance for improving the blood pressure management and decision-making level of the Chinese oldest old.
Aged, 80 and over
;
Asian Continental Ancestry Group
;
Blood Pressure
;
Blood Pressure Determination
;
China
;
Humans
;
Hypertension/prevention & control*
10.Association between cumulative blood pressure and long-term risk of cardiovascular disease: findings from the 26-year Chinese Multi-provincial Cohort Study-Beijing Project.
Shuai LIU ; Dong ZHAO ; Miao WANG ; Yue QI ; Jia-Yi SUN ; Jun LIU ; Yan LI ; Jing LIU
Chinese Medical Journal 2021;134(8):920-926
BACKGROUND:
Cumulative blood pressure (BP), a measure incorporating the level and duration of BP exposure, is associated with the risk of cardiovascular disease (CVD). However, the level at which cumulative BP could significantly increase the risk remains unclear. This study aimed to investigate the association of 15-year cumulative BP levels with the long-term risk of CVD, and to examine whether the association is independent of BP levels at one examination.
METHODS:
Data from a 26-year follow-up of the Chinese Multi-provincial Cohort Study-Beijing Project were analyzed. Cumulative BP levels between 1992 and 2007 were calculated among 2429 participants free of CVD in 2007. Cardiovascular events (including coronary heart disease and stroke) occurring from 2007 to 2018 were registered. Adjusted hazard ratios (HRs) for CVD incidence associated with quartiles of cumulative systolic blood pressure (SBP) and diastolic blood pressure (DBP) were calculated.
RESULTS:
Of the 2429 participants, 42.9% (1042) were men, and the mean age in 2007 was 62.1 ± 7.9 years. Totally, 207 CVD events occurred during the follow-up from 2007 to 2018. Participants with higher levels of cumulative SBP or DBP exhibited a higher incidence rate of CVD (P < 0.001). Compared with the lowest quartile of cumulative SBP, the HR for CVD was 1.03 (95% confidence interval [CI]: 0.59-1.81), 1.69 (95% CI: 0.99-2.87), and 2.20 (95% CI: 1.21-3.98) for the second to the fourth quartile of cumulative SBP, and 1.46 (95% CI: 0.86-2.48), 1.99 (95% CI: 1.18-3.35), and 2.08 (95% CI: 1.17-3.71) for the second to the fourth quartile of cumulative DBP, respectively. In further cross-combined group analyses with BP measurements in 2007, 15-year cumulative BP levels higher than the median, that is, 1970.8/1239.9 mmHg·year for cumulative SBP/DBP, which were equivalent to maintaining SBP/DBP levels of 131/83 mmHg or above on average in 15 years, were associated with higher risk of CVD in subsequent years independent of BP measurements at one-time point.
CONCLUSION
Cumulative exposure to moderate elevation of BP is independently associated with increased future cardiovascular risk.
Aged
;
Asian Continental Ancestry Group
;
Blood Pressure/physiology*
;
Cardiovascular Diseases/etiology*
;
China/epidemiology*
;
Cohort Studies
;
Humans
;
Hypertension/epidemiology*
;
Incidence
;
Male
;
Middle Aged
;
Risk Factors

Result Analysis
Print
Save
E-mail