Children (2-17 y.): BMI is interpreted differently using percentiles. Consultation with a pediatrician is recommended.
Adults (18-64 y.): Standard BMI categories (18.5-24.9 for normal weight).
Adults (65+ y.): For adults over 65, the recommended BMI range is slightly higher (23-28).
Gender: Men typically have a higher percentage of muscle mass, while women have a higher percentage of body fat at the same BMI.