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All Journal Jurnal Biologi Tropis
Nimas Prita R. K. Wardani
Universitas Nusa Cendana
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Immunology & microbiology

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Relationship between Menarche Age and the Incidence of Primary Dysmenorrhea in Christian Junior High School Students of Citra Bangsa Mandiri Kupang City Giovani Maria Fallo; Kristian Ratu; Nimas Prita R. K. Wardani; Teguh Dwi Nugroho
Jurnal Biologi Tropis Vol. 26 No. 1 (2026): Januari-Maret
Publisher : Biology Education Study Program, Faculty of Teacher Training and Education, University of Mataram, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jbt.v26i1.11395

Abstract

Primary dysmenorrhea ranks among the most prevalent menstrual issues in teenagers, impacting their everyday life and general well-being. The age at which menstruation begins has frequently been linked to the likelihood of experiencing dysmenorrhea; however, previous studies have produced mixed results. The goal of this research was to examine the connection between the age of menarche and the incidence of primary dysmenorrhea in female students at Kristen Citra Bangsa Mandiri Junior High School in Kupang. This investigation utilized an analytical observational method with a cross-sectional approach. A total of 54 students were chosen using purposive sampling according to specific inclusion and exclusion standards. Menarche age was classified as early (younger than 12 years), normal (12 to 14 years), and late (older than 14 years). The WaLIDD Score was employed to evaluate primary dysmenorrhea. The data were processed using the chi-square test, with a significance threshold set at p<0.05. The findings indicated that 55.6% of female students had a normal age for the start of menstruation, while 44.4% started early. The occurrence of primary dysmenorrhea was found to be 77.8%, with mild cases at 38.9%, moderate cases at 31.5%, and severe cases at 7.4%. Those who did not experience primary dysmenorrhea made up 22.2% of the respondents. The statistical analysis yielded a p=0.90 value. There was no significant link between the age of menarche and the prevalence of primary dysmenorrhea among students at Citra Bangsa Mandiri Christian Junior High School in Kupang City.
Relationship Between Mothers Knowledge Level and the Timing of Providing Complementary Foods to Infants Aged 6-24 Months in Langa Community Health Center Work Area, Ngada Regency Maria Faustina Veren Dika; Regina Marvina Hutasoit; Gottfrieda P. Taeng-Ob Adang; Nimas Prita R. K. Wardani
Jurnal Biologi Tropis Vol. 26 No. 1 (2026): Januari-Maret
Publisher : Biology Education Study Program, Faculty of Teacher Training and Education, University of Mataram, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jbt.v26i1.11416

Abstract

Inappropriate timing of complementary feeding causes nutritional problems and increases the likelihood of malnutrition in the region. Mothers' understanding of complementary feeding is crucial in determining when and how it is introduced. This study aims to explore the relationship between maternal knowledge and the appropriate timing of complementary feeding in the area served by the Langa Community Health Center. This study included a correlational analysis with a cross-sectional approach. Data analysis in this study was conducted using univariate and bivariate approaches (Chi-Square test). The results of the analysis showed that the timing of introducing complementary feeding at six months of age was 64.1%. Meanwhile, maternal knowledge was assessed as being in the good range at 48.5%. The bivariate analysis showed a significant relationship between maternal knowledge level, good or bad, and the timing of introducing complementary feeding. The conclusion is that there is a significant relationship between maternal knowledge level and the timing of introducing complementary feeding in infants aged 6 to 24 months in the Langa Community Health Center area, Ngada Regency.
Co-Authors Giovani Maria Fallo Gottfrieda P. Taeng-Ob Adang Kristian Ratu Maria Faustina Veren Dika Regina Marvina Hutasoit Teguh Dwi Nugroho