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1.
Chinese Journal of Contemporary Pediatrics ; (12): 153-158, 2023.
Article in Chinese | WPRIM | ID: wpr-971053

ABSTRACT

OBJECTIVES@#To study the association between early-life factors (including birth weight, method of birth, gestational age, and history of gestational metabolic disorders) and pubertal timing in girls.@*METHODS@#The stratified cluster sampling method was used to select the girls in grades 2-3 and 7-8 from three primary schools and three middle schools in Guangzhou, China from March to December, 2019, and breast development was examined for all girls. A questionnaire survey was performed to collect the information on early-life factors. The multivariate logistic regression model was used to evaluate the association of gestational metabolic disorders, birth weight, method of birth, and gestational age with pubertal timing in girls. The Bootstrap method was used to assess the mediation effect of body mass index (BMI) (Z score) between high birth weight (≥4 000 g) and pubertal timing.@*RESULTS@#A total of 1 665 girls were enrolled, among whom 280 (16.82%) were judged to have early pubertal timing. The multivariate logistic regression analysis showed that high birth weight was associated with the increased risk of early pubertal timing (OR=2.12, 95%CI: 1.19-3.66, P=0.008). Nevertheless, no significant association was observed between other early-life factors and pubertal timing (P>0.05). The OR for the mediation effect of BMI (Z score) between high birth weight and early pubertal timing was 1.25 (95%CI: 1.09-1.47), accounting for 29.33% of the total effect of high birth weight on early pubertal timing.@*CONCLUSIONS@#High birth weight is associated with the increased risk of early pubertal timing in girls, and overweight/obesity may play a partial mediating role in the association between high birth weight and early pubertal timing in girls.


Subject(s)
Female , Humans , Birth Weight , Body Mass Index , China , Gestational Age , Logistic Models , Puberty, Precocious
2.
China Occupational Medicine ; (6): 437-441, 2016.
Article in Chinese | WPRIM | ID: wpr-876970

ABSTRACT

OBJECTIVE: To explore the relationship of job stressors,the coping styles and social supports among medical workers in primary and secondary schools in Guangzhou City. METHODS: A total of 211 medical workers from 168 primary and secondary schools in Guangzhou City were selected as study subjects by random sampling method. The relationship of job stressors,the coping styles and social supports were investigated by the Scale for Occupational Stressors in Clinical Medical Workers,the Ways of Coping Questionnaire and Social Support Questionnaire. RESULTS: The total scale score of job stressors was( 90. 5 ± 16. 7),medium level and above of stress scale( total score≥95. 0) accounted for 41. 2%( 87 /211). The median scores of positive coping dimension score and negative coping dimension score were 2. 0 and 1. 0,the total score of social support was( 41. 2 ± 9. 8). The medium level and above of social support scale( total score ≥32. 0)accounted for 86. 3%( 182 /211). The multiple stepwise regression analysis results showed that the clinicians and the parttime school doctors had higher job stress than those medical workers who were not majored in clinic and full-time school doctors( P < 0. 05). The medical workers with higher monthly income and higher score of social support showed higher job stress( P < 0. 05). The medical workers with higher social support had lower job stress( P < 0. 05). CONCLUSION: High job stress was found in the medical workers in primary and secondary schools in Guangzhou City. Positive coping styles and social supports has important role in relieving job stress of school medical workers.

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