The study found that patients in group B, who presented late with AIDS, had significantly better survival rates than those in group A, who presented early. This suggests that early medical intervention in HIV infection may delay the onset of AIDS. However, the study also indicates that survival may decrease once AIDS develops. The findings align with the Concorde and other studies, which showed that early zidovudine treatment delayed AIDS development but did not improve overall survival. The study highlights the public health issue of patients presenting with AIDS coincidentally with their first positive HIV test. It contributes to the debate on the effects of medical intervention on survival after an AIDS-defining illness has developed. The study evaluated waist circumference as a measure to identify individuals at risk of health issues due to overweight and central fat distribution. It found that waist circumference ≥94 cm for men and ≥80 cm for women identified those with high BMI (≥25 kg/m²) and those with lower BMI but high waist:hip ratio (≥0.95 for men, ≥0.80 for women) with high sensitivity and specificity. Waist circumference ≥102 cm for men and ≥88 cm for women identified those with BMI ≥30 and those with lower BMI but high waist:hip ratio, with only about 2% misclassified. The study concluded that waist circumference could be used in health promotion to identify individuals needing weight management. Men with waist circumference ≥94 cm and women with ≥80 cm should not gain further weight, while those with ≥102 cm and ≥88 cm should reduce weight. The study also discussed the advantages of waist circumference over BMI and waist:hip ratio, including its relation to body weight and fat distribution. It emphasized the importance of waist circumference in predicting health risks and suggested action levels for health promotion. The study found that waist circumference action levels were robust and effective in identifying individuals at risk. The results supported the use of waist circumference as a practical tool for health promotion and weight management.The study found that patients in group B, who presented late with AIDS, had significantly better survival rates than those in group A, who presented early. This suggests that early medical intervention in HIV infection may delay the onset of AIDS. However, the study also indicates that survival may decrease once AIDS develops. The findings align with the Concorde and other studies, which showed that early zidovudine treatment delayed AIDS development but did not improve overall survival. The study highlights the public health issue of patients presenting with AIDS coincidentally with their first positive HIV test. It contributes to the debate on the effects of medical intervention on survival after an AIDS-defining illness has developed. The study evaluated waist circumference as a measure to identify individuals at risk of health issues due to overweight and central fat distribution. It found that waist circumference ≥94 cm for men and ≥80 cm for women identified those with high BMI (≥25 kg/m²) and those with lower BMI but high waist:hip ratio (≥0.95 for men, ≥0.80 for women) with high sensitivity and specificity. Waist circumference ≥102 cm for men and ≥88 cm for women identified those with BMI ≥30 and those with lower BMI but high waist:hip ratio, with only about 2% misclassified. The study concluded that waist circumference could be used in health promotion to identify individuals needing weight management. Men with waist circumference ≥94 cm and women with ≥80 cm should not gain further weight, while those with ≥102 cm and ≥88 cm should reduce weight. The study also discussed the advantages of waist circumference over BMI and waist:hip ratio, including its relation to body weight and fat distribution. It emphasized the importance of waist circumference in predicting health risks and suggested action levels for health promotion. The study found that waist circumference action levels were robust and effective in identifying individuals at risk. The results supported the use of waist circumference as a practical tool for health promotion and weight management.