Adolescent fertility is an important issue in terms of health and social care due to its relation to morbidity and mortality of mothers and children. The 2017 IDHS provided data regarding the percentage of women aged 15-19 who already became mothers or pregnant with their first child according to background characteristics. The 2017 IDHS results showed 7 percent of women aged 15-19 were mothers: 5 percent had given birth and 2 percent were pregnant with their first child. This study used a quantitative secondary data analysis approach. The secondary data used were the results of the Central Java IDHS 2017. The population of this study was all adolescent girls aged 15-19 years in Central Java. The unit analysis in the study were women of childbearing age which were 15-19 years from the analysis unit of Central Java IDHS in 2017 with a total sample of 4,560 respondents. From the results of the study, we noted that factors related to adolescent fertility in Central Java were age, education, use of contraception, marital status, status of living with a partner, and practice of sexual relations. Factors which were not related to adolescent fertility in Central Java were occupation, wealth, type of residential area, insurance ownership, duration of abstinence, partner's age, partner's level of education, and partner's occupation.

Rembang Regency is a district in Central Java that has a Child-Friendly District Policy in the form of Regent Regulation No. 22 of 2010 about RAD Kabupaten Rembang Layak Anak. The number of child marriage cases in Rembang Regency was very high where in 2014 the number of child marriages reached 1183 married women under the age of 18 and 44 married men under 19 years (Departemen Agama Kabupaten Rembang, 2014). The high number of child marriages raises various health problems including mothers under the age of 18 who have a 35% to 55% higher risk of giving birth to babies with low birth weight (LBW). The infant mortality rate is 60% higher in mothers who are under 18 years of age. Teenage fertility is an important issue in terms of health and social because it is related to the level of maternal and child morbidity and mortality. This can be anticipated by increasing the participation of adolescents in accessing contraceptives. The purpose of this study was to examine the effectiveness of the community-based health communication model related to contraceptive methods in young married couples in Rembang Regency. This study used Research and Development design. The population in this study were married teenagers in Rembang Regency, while the study samples were married teenagers in Sedan and Kragan Village (as intervention group), Rembang and Sarang (as control group). Quantitative data analysis of this study is univariate and bivariate, while for qualitative data using grounded theory.

Adolescent fertility is an important health and social problem because it is related to the level of morbidity and mortality of mothers and children. The results of the 2017 IDHS show that 7% of women aged 15-19 are already mothers, 5% have given birth, and 2% are pregnant with their first child. The data shows that adolescents are already sexually active, but still have an understanding of low reproductive health. The purpose of this study was to determine the effectiveness of community-based health communication models that developed to improve access to information and public knowledge related to contraceptive methods in young married couples in Rembang Regency in 2019. This research  used Research and Development design with a quasi-experimental data collection method. The population in this study were adolescents who married at a young age in Rembang District, while the sample was adolescents who married young in Sedan and Kragan villages (intervention group), Menoro and Ngasinan (control group). Quantitative data analysis uses univariate, bivariate, and multivariate, while for qualitative data use grounded theory. The effectiveness test showed significant data for knowledge (p = 0,000), attitudes (p = 0.003), access to information (0.012), preferences (p = 0.001), and access to contraception (p = 0,000). It can be concluded that the community-based health communication model can improve knowledge, attitudes, access to information, preferences, and access related to contraception in early married couples

Tuberculosis (TB) is an infectious disease worldwide that causes death. Common clinical manifestations of patients with TB include anemia, hypoalbuminemia, and malnutrition. Most patients with TB are infected with coccus bacteria, such as Staphylococcus aureus, that commonly attack the respiratory tract. However, the consumption of heme protein sources could improve the nutritional status of patients with TB. Fish comprise one of the most widely consumed sources of heme. The bloso fish (Glossogobius giuris sp.), considered a fish without economic value is a new alternative source of heme protein. This study aimed to develop supplements using bloso fish (Glossogobius giuris sp.). This study used an experimental pretest-post-test control group design. Seven male Wistar rats were used as the negative control group. Twenty- eight male Wistar rats were administered S. aureus, fed a protein-deficient diet, and divided into the positive control group, the K1 group, which received up to 675 mg/200 g of bloso fish flour, the K2 group, which received up to 67.5 mg/200 g of bloso fish oil, and the K3 group, which received up to 675 mg/200 g of bloso fish fluor from oil extraction dregs. Treatment was administered for 28 days. The hemoglobin (Hb), hematocrit (Ht), platelet, and albumin levels in blood serum from the retroorbital vein were measured. Data were processed using a paired t-test and one-way analysis of variance. The results showed differences in Hb, Ht, platelet, and albumin levels were observed before and after treatment. Additionally, differences in Hb, Ht, platelet, and albumin levels were observed in the groups that received bloso fish flour and bloso fish oil. Bloso fish flour and bloso fish oil increased the Hb, Ht, platelet, and albumin levels of rats with hypoalbuminemia.

In the event of an outbreak, the emergency will depress the community, which can affect the health conditions of the community. The COVID-19 pandemic has a profound effect on all aspects of society, including mental health and physical health. The risk of decreased physical and mental health can attack vulnerable groups such as the elderly, adolescents, and children. The author explores perceptions, and social media exposure during the COVID-19 pandemic. Research data will be used to develop strategies to reduce the psychological impact that may arise during a pandemic. The purpose of this study was to survey adolescents to better understand the impact of social exposure on perception during the COVID-19 pandemic. The survey was conducted on adolescents aged 10-24 years. A total of 1357 adolescents participated in this survey The survey method was carried out online. Teenagers fill out survey forms online with certain applications.