Premarital sexual behavior among Indonesian adolescents currently becomes easier to be found than previous generation. Based on health survey in 2017, both female and male adolescents admitted that they experienced dating since the aged of 16. Data showed that adolescents who were in relationship admitted having premarital sex than the common adolescents. This study’s objectives was to investigate the correlation between age of first dating and sexual behavior among adolescents and adults in Indonesia. The sample of this study involved respondents of health demographic survey in Indonesia 2012 who fulfilled the inclusion criteria of men and women aged 15-24 years and unmarried. This research was a quantitative research using descriptive analytic research design with cross sectional approach. The age of first dating on adolescents was higher (96.2%) than young adults (3.8%). The numbers of dating teenagers and adults with sexual behavior (90.3%) was higher than those without sexual behavior (9.7%). Chi-Square correlation test results by using 95% of confidence revealed p-value equal to 0.004 0.05 with value of correlation coefficient equal to 0.023 indicating positive and significant correlation. Conclusion: There was correlation between age of first dating and sexual behavior on adolescents and adults in Indonesia.

Child development towards critical times needed or stimulation that is useful for developing potential so that it is necessary to have more attention and needs of children at various stages of development. Knowing the correlation between maternal knowledge and occupation toward baby's developmental milestones. Analytical survey research with cross sectional approach, the populations of this study were all babies aged 0-5 years. The number of samples of this study were 48 respondents where sampling was taken by purposive sampling technique with inclusion criteria. Analyzed using univariate and bivariate analysis. The results of the study showed that a small proportion of children with abnormal development 16 respondents (33.3%), respondents with less knowledge 20 respondents (41.7%) and respondents who worked 18 respondents (37.5%). Based on statistical test Chi-square, there was a significant correlation between maternal knowledge and occupation toward baby’s developmental milestones (p value 0.003) and obtained that there was correlation between maternal occupation and baby’s developmental milestones (p value 0.004). Conclusion: It was concluded that there was a significant correlation between maternal knowledge and occupation toward baby’s developmental milestones.