Weight gain during pregnancy and its associated factors: A Path analysis.

Aim: Weight gain during pregnancy is an important indicator in the prediction of morbidity and mortality in infants and mothers. This study aimed to determine the association factors for weight gain during pregnancy. Design: A longitudinal study. Methods: A total of 734 women were selected using multistage cluster sampling. Data were collected using demographic and midwifery questionnaires, economic and social status, psychological factors, domestic violence, perceived social support and food insecurity. Results: Of participants 28.7%, 49.6% and 21.7%, respectively, received insufficient, adequate and excessive weight gain in pregnancy respectively. Among health determinants entered in the model, mother's age, prepartum body mass index and direct and indirect prenatal care, size of households, food insecurity, stress, anxiety, stress and pregnancy-specific stress as well as violence had a positive and increasing effect on weight gain during pregnancy. Conclusion: Considering the effect of inappropriate weight gain during pregnancy on undesirable pregnancy outcomes, related factors such as nutritional status, stress and depression in prenatal care should be assessed. Healthcare providers should consult, educate pregnant women.

Self-efficacy of osteoporosis preventive behaviors and its predictors in Iranian adolescents.

INTRODUCTION: Almost all the bone mass in females is accumulated during adolescence and especially in the years immediately following menstruation. Self-efficacy plays an important role in moderating the relationship between knowledge and behavior. This study aimed to determine the self-efficacy of osteoporosis preventive behaviors and its predictors in female high school students. METHODOLOGY: This descriptive-analytical cross-sectional study was conducted on 330 female high school students in Saveh, Iran during 2016-2017. A two-stage cluster sampling method was used to select the participants. Data were collected using a socio-demographic questionnaire, the Osteoporosis Knowledge Test (OKT) and the Osteoporosis Self-Efficacy Scale (OSES). A general linear model was used to determine the self-efficacy predictors of osteoporosis preventive behaviors. RESULTS: The mean [standard deviation (SD)] of the total OKT score was 11.08 (4.08) of attainable range from 0 to 32. The mean (SD) of the total OSES score was 121.97 (37.36) of attainable range from 0 to 200. The mean (SD) of the exercise and calcium subscales of OSES were 58.39 (22.56) and 63.57 (21.02), respectively. There were significant relationships between the total OKT score with the total OSES score (r = 0.16, p = 0.003) and its subscales, including exercise (r = 0.16, p = 0.002) and calcium (r = 0.11, p = 0.03) scores. According to the adjusted general linear model, the variables of economic status, educational level and osteoporosis knowledge were predictors of the self-efficacy in the studied students. CONCLUSION: Findings suggested that most of the students had moderate levels of knowledge and self-efficacy regarding osteoporosis preventive behaviors; therefore, improving the knowledge and self-efficacy of this group can play a significant role in promoting their health.