Table 4.

Diagnostic validity of WHODAS‐12 using WHODAS‐36 as a “gold standard” to determine dysfunction and disability among women in the postpartum period

	P>90	P>95	P>97.5
Sensitivity	83.3%	83.3%	66.7%
Specificity	98.3%	99.2%	99.2%
Positive predictive value	83.3%	83.3%	66.67%
Negative predictive value	98.3%	99.2%	99.2%
AUC ROC	0.976	0.996	0.989

Number of women scoring in each category
	Percentiles	WHODAS‐36 as “gold standard”
		P>90	P≤90
WHODAS‐12 as test	P>90	10	2
	P≤90	2	113
	Total	12	115
		P>95	P≤95
WHODAS‐12 as test	P>95	5	1
	P≤95	1	120
	Total	6	121
		P>97.5	P≤97.5
WHODAS‐12 as test	P>97.5	2	1
	P≤97.5	1	123
	Total	3	124

Abbreviations: AUC, area under the curve; P, percentile; ROC, receiver operating characteristic.