Classify a 6-month weight increment (birth to 24 months)
GET /weight-velocity/classify · API key required
WHO Child Growth Standards 6-month weight increment (grams, simplified field tables). This is weight VELOCITY, not weight for age. Pass the start age of the 6-month window, plus either increment_g (grams) or both weight_start_kg and weight_end_kg (kilograms). Strict cut-offs: very low below -3SD, low below -2SD, within expected range from -2SD to +2SD, high above +2SD, very high above +3SD. z_score and percentile are exact, computed from the WHO L, M, S and Delta parameters (null if the shifted increment is not positive). Screening aid only, not a diagnosis.
Parameters
sex(query, required) - girls or boys (girl, boy, female, male, f, m also accepted)start_age_months(query, required) - Whole months at the first weighing; window is start to start+6 (3 means the 3-9 month window)end_age_months(query) - Optional; must equal start_age_months + 6increment_g(query) - Weight gain over the window in GRAMSweight_start_kg(query)weight_end_kg(query)
Responses
200- Classification400404429