<p><strong><em>Introduction:</em></strong> <em>Until now, Sexually Transmitted Infections (STIs) are still a health problem in the world, both developed and developing countries continue to strive to face and find solutions to overcome this disease, although prevention efforts carried out in various countries do not seem to have yielded satisfactory results. The purpose of this study was to analyze the determinants of sexually transmitted infections (STIs) based on data from the 2017 North Sumatra IDHS. <strong>Method: </strong>This type of research is an observational analytic study using a cross-sectional study design based on data from the 2017 North Sumatra Province IDHS. The population of this study was women aged 15-49 years who have had sexual relations. After cleaning the data, 1728 samples were included in the study. The data analysis technique used the frequency distribution of categorical variables, the analysis of the relationship between the independent variable and the dependent variable used the chi-square test, then the multivariate analysis used logistic regression test. <strong>Result :</strong> The results showed that the prevalence of sexually transmitted infections among women of childbearing age in North Sumatra was 25% (95% CI = 23.7% - 27.7%). The results showed that there was a significant relationship between age, education level and area of residence with the incidence of sexually transmitted infections (STIs). Then the multivariate analysis showed that the area of residence variable was the most dominant risk factor in causing the incidence of sexually transmitted infections (STIs). It is hoped that the government can overcome the problem of STIs through interventions on risk factors by providing education related to STIs in the community, especially women of childbearing age.</em></p>

Dental health remains a public health problem with increased the prevalence of dental problems from 2007 to 2013. The problem is highest in the early adolescent age group. A dental problem occurs due to lack of behavior on the routine toothbrush (2.8%). The purpose of this study was to describe dental problems in Islamic boarding schools in Medan. This study used a cross sectional design in seven Islamic boarding schools in Medan with a total sample of 436 students in the 5.319 total population. System random sampling was applied in this study and the questionnaire was distributed to sample. The data analysis used was descriptive frequency. The results showed that the behavior of brushing teeth based on age group was highest in the early adolescent group in the category of brushing teeth in the morning (78%) and afternoon (92%). Based on gender, both men and women showed the highest tooth brushing behavior in the morning (37.8%; 40.4%) and afternoon (45.9%; 46.6%). Dental health problems by age group were included in the category of healthy teeth (49.1%). Based on gender also showed dental problems for both men and women (25.9%; 24.1%) in the category of healthy teeth. Dental health among female students is still found to have dental health problems caused by the behavior of brushing teeth that is not in accordance with the recommendations of the Ministry of Health, namely after breakfast and before going to bed at night.

According to WHO (2008), globally the prevalence of anemia in pregnant women worldwide is 41.8%. Anemic pregnant women are wrong factors due to poor diet. Nutrition education is one of the preventive activities in improving the diet of pregnant women. A good diet during pregnancy can help the body overcome special requests for pregnancy, and have a positive influence on the health of the baby. This study aims to determine changes in consumption of eating patterns in anemic pregnant women after being given nutritional education in the city of Palembang. This type of research uses quantitative methods with an experimental desain. The population in this study were pregnant women in Palembang City. The study sample consisted of 41 respondents (18