Mid-upper arm circumference in pregnant women and birth weight in newborns as substitute for skinfold thickness: findings from the MAASTHI cohort study, India

Table 2 Cut-offs for different anthropometric measures corresponding to total skinfold thickness cut-off (90th percentile) in pregnant women, by different methods of ROC curve analysis. [N = 3719]

Anthropometric measure	Cut-off corresponding to 90th percentile of total skinfold thickness from different methods
Anthropometric measure	Youden’s J statistic**	Minimized distance to (0, 1) point in the ROC curve	Sensitivity-specificity equality
Bodyweight (kg)	66.89	66.89	64.94
Head circumference (cm)	53.39	53.39	53.09
Mid-upper arm circumference (cm)	29.2	28.5	28.3
BMI (kg/m²)	27.82	27.37	27.49

^{*Sum of Biceps, Triceps and Sub−scapular skinfold thickness}
^{** In case of discrepancy between cut−offs determined by different methods, the cut−off obtained via Youden’s J statistic was considered as standard}

ISSN: 1471-2393