Knee osteoarthritis is a degenerative joint disease usually suffered by elderly patients, contributing to the high risk of disability. The risk factors that affect the severity of knee osteoarthritis are obesity, age, sex, occupation, patient's history of the disease, trauma and other factors. Excessive body weight is a factor that exacerbates the disease of Osteoarthritis. Generally, this research is aimed to examine the correlation between Body Mass Index (BMI) and knee osteoarthritis at UKI General Hospital in 2017. The researcher used a descriptive-analytic study with a cross-sectional approach. In this study, the researcher used 30 samples. The results showed that there was a relationship between BMI and the incidence of knee osteoarthritis. This study indicates that BMI values above average (more than 24.9) can affect the occurrence of joint space narrowing in patients. Patients with abnormal BMI have a risk of 6,429 times the risk of joint space narrowing compared to patients with normal BMI. The mean BMI value of patients with knee osteoarthritis at UKI General Hospital is 25.6. Therefore, the researcher concluded that there is a correlation between BMI and knee osteoarthritis, in which a high BMI value (>24.9) may affect the occurrence of joint space narrowing among the patients. The mean BMI value among the osteoarthritis patients at UKI General Hospital is 25.6, indicating that most osteoarthritis patients are pre-obese/overweight. Key words: Knee osteoarthritis, Body Mass Index (BMI), joint space narrowing

Low back pain is an occupational disease that arises due to work relationships or is caused by work and work attitudes. Incorrect sitting posture and sitting for long periods are one of the most frequent risk factors. The study was conducted to determine the relationship between sitting posture and work duration with complaints of low back pain in-office employees. The research design used is descriptive-analytic with a cross-sectional approach. The number of samples was 70 employees of the Central Kalimantan Provincial Health Office using the total sampling technique. The research data was taken using a questionnaire. The results of respondents who complained of low back pain were 12 people (17.1%), and 9 of them related to the wrong sitting position (81.8%) with a p-value of 0.000, and the wrong sitting posture was 84 times greater for suffering from lower back pain compared to the correct sitting posture. The duration of work (long sitting) did not have a relationship with complaints of back pain (p = 0.974). There is a significant relationship between the respondent's sitting attitude to the incidence of low back pain, and there is no significant relationship between work duration (length of sitting) and the incidence of low back pain in employees at the Central Kalimantan Provincial Health Office. Keywords: Work Duration, Sitting Length, Lower Back Pain, Sitting Position

Obstructive sleep apnea (OSA) is a sleep-related breathing disorder caused by repeated upper airway obstruction. In OSA patients, 46.5%-58% reported having symptoms of hypersomnolence or excessive daytime sleepiness, and it was the most common symptom. Nasal obstruction is considered a risk factor for sleeping and breathing problems and a common problem in OSA sufferers. Nasal obstruction in the general population can reach 30-40% and is a problem that is often consulted in primary or secondary health services. This study aimed to determine the relationship between the degree of nasal obstruction and OSA in students of the Faculty of Medicine, Indonesian Christian University, Class of 2018-2020. This study uses an analytic observation method with a cross-sectional approach. The number of samples of 74 people was obtained by purposive sampling technique. Respondents who met the criteria were assessed for the degree of nasal obstruction using the NOSE scale questionnaire, while OSA was assessed using the ESS questionnaire, and then the data were analyzed using the Chi-Square Test. The results of the Chi-Square statistical test obtained p value = 0.041. So it was concluded that there was a significant relationship between the degree of nasal obstruction and OSA in students of the Faculty of Medicine, Indonesian Christian University Class of 2018-2020.