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Breast tumors are classified into two types, namely benign and malignant tumors, the latter commonly referred to as breast cancer. Breast cancer is one of the major health problems affecting women worldwide, including in Indonesia. According to WHO data in 2022, there were 2.3 million breast cancer cases with 685,000 deaths globally, while in Indonesia, 396,914 cases and 234,511 deaths were reported. The high incidence rate is exacerbated by low public awareness in recognizing early symptoms and performing early detection, resulting in 60–70% of cases being diagnosed at an advanced stage, supported by findings that 65.6% of female students still have a low level of knowledge. Female students were selected as research subjects because they are in a vulnerable reproductive age group and have an important role in increasing awareness of early detection, yet they still have limited knowledge. Based on this, this study aims to design a web-based early detection system for breast tumor risk using the Forward Chaining method, which functions as a tool to identify early symptoms, assess risk levels, and provide information on prevention and initial management. This study employed the method with the Expert System Development Life Cycle (ESDLC) model, consisting of the stages of assessment, knowledge acquisition, design, testing, and documentation, along with the Forward Chaining inference method.

According to the International Agency for Cancer Registry (IACR), breast cancer is the most common cancer among women after lung cancer, and continues to be frequently diagnosed worldwide. In 2022, more than 2.32 million new cases of breast cancer were reported globally, while Indonesia recorded 65,858 cases (16.6% of all cancers). Therefore, adolescent girls need to have adequate knowledge and a positive attitude toward breast self-examination (BSE/SADARI) as part of reproductive health awareness and preventive efforts. This study aims to examine the relationship between knowledge and attitudes regarding SADARI among 10th-grade female students at MAN (State Islamic Senior High School) 3 Sleman. This study employed a quantitative correlational approach with a cross-sectional design, involving a sample of 66 respondents. Data were collected using a questionnaire containing questions related to BSE. The Spearman Rank test showed a p-value of 0.606, which is greater than 0.05 (p > 0.05). This indicates that there is no significant relationship between the level of knowledge and attitudes toward BSE among 10th-grade female students at MAN 3 Sleman. In addition, the correlation coefficient (r) was 0.065, indicating a very weak relationship between knowledge and attitudes. There is no significant relationship between knowledge and attitudes regarding BSE among 10th-grade female students at MAN 3 Sleman. Schools and healthcare providers are encouraged to enhance structured and continuous BSE education and incorporate educational media during health counseling to foster positive attitudes.

Natural Sciences or often known as (IPA) is a subject taught in Islamic Elementary Schools. Natural Sciences is the study of humans and the study of problems on how humans themselves develop their lives better. This study aims to determine the achievement of the science learning program of making simple water filters to improve the knowledge of MI students in Tenaru Village, Driyorejo District. This type of research refers to the Participatory Action Research (PAR) method approach. This method is a learning approach to solve problems, meet practical needs in society, produce knowledge, and encourage social change in society. Data analysis techniques in the Participatory Action Research (PAR) method for the science learning program of making simple air filters are carried out comprehensively and participatory. Data collection techniques are carried out through observation, conducting direct interviews to measure their level of knowledge, and documentation of practical results. The results of the study indicate that the science learning program of making simple air filters to improve the knowledge of MI students in Tenaru Village, Driyorejo District has proven effective in improving students' understanding of the concept of water filtration and the importance of maintaining water cleanliness. Through hands-on activities, students can observe the filtration process in action, understand the function of each layer of material, and gain a fun and contextual learning experience.

Background: Anemia in pregnancy is a significant public health problem that can increase the risk of maternal and fetal complications. One of the main strategies to prevent anemia is the administration of Multiple Micronutrient Supplements (MMS), which provide essential vitamins and minerals during pregnancy. However, the effectiveness of MMS in preventing anemia is closely related to the level of knowledge pregnant women have about its use. Therefore, understanding the relationship between knowledge about MMS and anemia incidence is crucial to improving maternal health outcomes (Rahmawati et al., 2023). Objective: This study aims to determine the relationship between pregnant women’s knowledge level about Multiple Micronutrient Supplements (MMS) and the incidence of anemia among pregnant women in the working area of Dr. Hi. Zainal Umar Sidiki Hospital, North Gorontalo. Methods: This research employed an analytical observational design with a cross-sectional approach. A total of 30 pregnant women were selected as the sample using purposive sampling techniquesResults: The study found that the majority of participants who had high knowledge levels about MMS had a lower incidence of anemia, while those with low knowledge levels had a higher incidence. These results highlight that knowledge about MMS strongly influences pregnant women’s adherence and effectiveness in preventing anemia. Conclusion: There is a significant relationship between pregnant women’s knowledge level about Multiple Micronutrient Supplements (MMS) and the incidence of anemia. Improving maternal knowledge about MMS through health education, counseling, and guidance from healthcare providers is essential to prevent anemia and support optimal pregnancy outcomes.

Dysmenorrhea or menstrual pain, is a common health issue among adolescent girls, often disrupting daily activities and quality of life. Effective management of dysmenorrhea is strongly influenced by the level of knowledge and attitudes of adolescent girls toward this condition. This literature review aims to analyze the relationship between knowledge and attitudes regarding the management of menstrual pain among adolescent girls. Various studies indicate that while adequate knowledge about dysmenorrhea is important, the correlation between knowledge and attitude is not always significant. Some research finds that good knowledge does not necessarily translate into a positive attitude towards pain management, as other factors such as stress, anxiety, and reluctance to take action also play a role. However, there are studies that show a positive relationship between increased knowledge and better attitudes toward dysmenorrhea management,  although the strength of this association is very weak. Most adolescents tend to choose non-pharmacological management, such as rest and warm compresses, but many still ignore menstrual pain due to a lack of knowledge and information. Therefore, educational interventions and counseling in schools are essential to improve knowledge and foster positive attitudes in managing dysmenorrhea among adolescent girls. These efforts are expected to help adolescent girls manage menstrual pain more effectively and enhance their quality of life.

The COVID-19 pandemic caused by SARS-CoV-2 has had a significant impact on public health behavior, including the increasing consumption of health supplements as an effort to strengthen immunity. This study aims to describe the level of knowledge of the people of Gedongan Village RT 01 RW 05 regarding the use of health supplements during the pandemic. Health supplements are defined as products that contain vitamins, minerals, amino acids, and herbal ingredients to support the immune system. The study used a descriptive approach with a survey method, involving 106 respondents who were selected purposively. Primary data was obtained through a structured questionnaire that had been validated, then analyzed descriptively. The results showed that the majority of respondents had a level of knowledge in the sufficient category (54%), followed by the poor category (25%) and the good category (21%). Respondents understood the benefits of supplements as a nutritional supplement, but knowledge related to rules of use, appropriate dosage, and potential side effects was limited. Demographic factors such as age, education, and type of work have an effect on knowledge levels, where respondents of productive age, secondary education, and work with cognitive demands show better understanding. The study concludes the need for continuous health education through health workers, especially pharmacists, with an approach according to demographic characteristics to encourage the use of supplements in a rational, safe, and appropriate manner.

Breast milk (ASI) is the best source of nutrition for newborns because it contains complete, safe, and stable nutrients, thus supporting optimal growth and development of infants. However, some breastfeeding mothers still do not fully understand the sufficiency of breast milk and its benefits for babies. Therefore, health education efforts are needed to improve the knowledge and understanding of breastfeeding mothers regarding breastfeeding. Health education is an educational activity aimed at inviting and encouraging the community to be willing to take actions that can maintain and improve health. This health education activity on the sufficiency of breast milk for breastfeeding mothers was held on January 24, 2026, at the Sungai Durian Community Health Center (UPTD). The method used in this activity was the delivery of material through health counseling accompanied by a measurement of the level of knowledge using pretest and posttest questionnaires. After the presentation of the material, breastfeeding mothers were asked to complete a posttest questionnaire to assess their understanding of the material that had been provided. The measurement results showed a significant difference between the pretest and posttest scores, indicating an increase in knowledge of breastfeeding mothers after being provided with health education. Thus, it can be concluded that health education activities about breast milk sufficiency are effective in increasing the understanding of breastfeeding mothers regarding the importance of providing sufficient breast milk for babies.

This study aims to determine the level of knowledge of U16 women's national team athletes regarding injury management using the PRICES (Protect, Rest, Ice, Compression, Elevation, Support) method to improve athlete safety.. The study used a quantitative descriptive method with a cross-sectional approach. Data were collected through a Google Form questionnaire with 21 athletes as subjects. Data were classified using the Guttman scale and a dichotomous scale, then converted into a five-criteria scale. The data were processed using SPSS 22. The average score obtained was 136.81 with the lowest score being 117 and the highest score being 150. There were 8 (38.10%) subjects in the very high category, 10 (47.62%) subjects in the high category, and 3 (14.29%) subjects in the moderate category. These results indicate that the average subject's knowledge of the PRICES method is in the high or fairly good category. This indicates that most athletes have understood the basic principles of PRICES. An integrated educational program and practical simulation are needed in routine training to ensure that all athletes are able to apply the PRICES method quickly, precisely, and effectively when an injury occurs.

Background: Clean and Healthy Living Behavior in Indonesia includes household.. In Indonesia, the level of knowledge and handwashing behavior of is still relatively low, an indication can be seen from the high prevalence of diarrhea. Research Objective: to determine the Relationship of Information Sources to Knowledge and Behavior of Adolescents About Clean Living in Nunkurus Village, East Kupang District. Research Method: This type of research uses Quasi Experiment One Group PreTest-PostTest Non Control Group, namely research with one subject who is given treatment or intervention before and after treatment. The population in this study is the community in this case adolescents in Nunkurus Village, East Kupang District, totaling 45 people. Sampling uses a total sampling technique. There are 3 research instruments used in this study including: respondent characteristic questionnaire, PHBS knowledge and health promotion educational video about PHBS. Data analysis using univariate in percentage and bivariate using Willcoxon Test. Results: the results of the study revealed the level of knowledge of the community before health promotion regarding PHBS, of the 45 respondents studied as many as 2 respondents (4.4%) had insufficient knowledge, 14 respondents (31.1%) had sufficient knowledge, and 29 respondents (64.4%) had good knowledge. From the results of the study, it was known that the level of knowledge of the community after health promotion regarding PHBS, of the 45 respondents studied as many as 17 respondents (37.8%) had good knowledge, 20 respondents (44.4%) had sufficient knowledge, and 8 respondents (17.8%) had insufficient knowledge. This is demonstrated by the results of the Wilcoxon ρ test (Asymp. Sig. 2-tailed) = 0.000 <0.05, indicating a relationship.

Toxoplasmosis is a disease transmitted from animals to humans, caused by the protozoan parasiteToxoplasma gondii. The Toxoplasma gondii parasite has infected more than 60% of the world's population and2-51% in Indonesia. Women of childbearing age (15-45 years) are one of the risk groups for the transmission of infection by the Toxoplasma gondii parasite. A person's knowledge is influenced by various factors such as level of education, information, environment and culture. The purpose of this study was to compare the level of knowledge on prevention of toxoplasmosis in women of childbearing age in Lhokseumawe City. This research is a type of descriptive analytic research with a cross-sectional time approach. Samples were taken using a purposive sampling technique from women of childbearing age in Uteunkot Village and Kuala Meuraksa Village. The sample size was determined using the Snedecor & Cochran formula and the minimum sample size was 62 respondents in Uteunkot Village and 62 respondents in Kuala Meuraksa Village. The results of this study indicate that the majority of respondents in Uteunkot Village have a less knowledge level of 43.5% and the majority of respondents in Kuala Meuraksa Village also have a less knowledge level of 85.5%. Data analysis used the Mann-Whitney test. The results of statistical analysis showed a p value <0.05. The conclusion of this study is that there are differences in knowledge of toxoplasmosis prevention in women of childbearing age in rural villages and urban villages.

The coverage of Complete Basic Immunization (Imunisasi Dasar Lengkap or IDL) in Maharani Village remains low at 38.8%, falling short of the national target of 95%. This condition increases the health risk of toddlers contracting Vaccine-Preventable Diseases (PD3I). This study aimed to determine the relationship between mothers' knowledge and husbands' support regarding the completeness of basic immunization for toddlers in Maharani Village, within the working area of Rumbai Bukit Public Health Center. This research employed a quantitative analytic method with a cross-sectional design. The population in this study comprised all mothers with toddlers in the area, with a sample of 73 respondents selected using the purposive sampling technique. Data collection was conducted using validated questionnaires and observation of Maternal and Child Health (KIA) books, followed by univariate and bivariate analysis using the Chi-square statistical test. The results indicated that the majority of toddlers had incomplete immunization status (61.6%), mothers had a low level of knowledge (61.6%), and respondents did not receive support from their husbands (58.9%). Statistical test results confirmed a very significant relationship between mothers' knowledge (p-value = 0.000) and husbands' support (p-value = 0.000) with the completeness of basic immunization. The conclusion confirms that knowledge and husband's support are the main determinant factors. It is suggested that Rumbai Bukit Public Health Center implement a more inclusive health promotion strategy by involving the active role of husbands in monitoring child health.

Formalin is a hazardous chemical that is banned from use in food, but is still found in imported fruit. Traders have an important role in preventing the circulation of food with formaldehyde, so the knowledge of traders about the dangers of formaldehyde needs to be studied. Objective: This study aims to determine the knowledge of traders and formalin content in imported fruit sold in X Market, Palembang City in 2025. Methods: This study used a quantitative approach with a descriptive design. The population in this study were all imported fruit traders in X Market totaling 9 people who served as respondents. The fruit samples tested were 24 samples consisting of apples, pears, and grapes. Data were collected through questionnaires and laboratory tests using formalin test kit. Results: The results showed that all traders (100%) had a good level of knowledge about formalin. Of the 24 fruit samples tested, 21 samples (87.5%) did not contain formalin and 3 samples (12.5%) showed positive results, all of which were from grapes. Conclusion: The majority of traders had good knowledge about formaldehyde, but formaldehyde was still found in some imported fruits, especially grapes.

Sexually transmitted infections (STIs) are a reproductive health problem that is still common among adolescents and can have serious impacts if not handled properly. Low levels of knowledge and unfavorable attitudes towards STIs have the potential to increase risky behavior among students. Objectives. This study aims to determine the level of knowledge and attitudes of students towards sexually transmitted infections at MAS Darul Mursyid. Methods. This study employed a cross-sectional methodology and a quantitative descriptive design. All MAS Darul Mursyid students were included in the study population, and a total sampling procedure was used to pick 149 respondents. A questionnaire with 20 statements about knowledge and 10 statements about attitudes around STIs was used to collect data. The SPSS software was used to analyze the data univariately, and the results were displayed as percentages and frequency distributions. Results and Discussion. According to the findings, 78 respondents (52.3%) had an adequate level of understanding, followed by 63 respondents (42.3%) in the poor category and 8 respondents (5.4%) in the good category. In the meanwhile, most students had a favorable opinion of STI prevention. Conclusion: Even though the majority of respondents expressed support for STI prevention initiatives, additional health education and instruction are still required to give students a more thorough grasp of STI prevention.