TABLE 3.

Accuracy of Depression Screening Tools as Continuous and Dichotomized Measures Overall and at 6 wk, 3 mo, and 6 mo Postpartum (N = 289 visits)

Screening tool	Overall	Postpartum Follow-up Visits
	N = 289 Visits	N = 96 Visits		N = 96 Visits		N = 97 Visits
		6 wk	Pa	3 mo	Pa	6 mo	Pa
	ROC (95% CI)	ROC (95% CI)		ROC (95% CI)		ROC (95% CI)
Continuous measures
EPDS	0.94 (0.91–0.99)	0.92 (0.83–1.00)	—	0.98 (0.96–1.00)	—	0.94 (0.87–1.00)	—
EPDS-7	0.96 (0.92–0.99)	0.97 (0.93–1.00)	.09	0.98 (0.94–1.00)	.62	0.94 (0.87–1.00)	.63
EPDS-3	0.81 (0.73–0.88)	0.73 (0.53–0.93)	<.01	0.82 (0.71–0.92)	<.01	0.86 (0.75–0.96)	.03
EPDS-2	0.90 (0.83–0.97)	0.88 (0.70–1.00)	.47	0.93 (0.87–0.99)	.04	0.89 (0.77–1.00)	.04
Dichotomous measures
Standard cutoff scores
Standard EPDS ≥10	0.86 (0.79–0.94)	0.81 (0.65–0.98)	—	0.91 (0.82–1.00)	—	0.86 (0.73–0.99)	—
Standard EPDS-7 ≥10	0.87 (0.79–0.94)	0.85 (0.68–1.00)	.02	0.94 (0.85–1.00)	.09	0.82 (0.68–0.96)	.39
Standard EPDS-3 ≥10	0.72 (0.64–0.80)	0.65 (0.46–0.83)	.01	0.71 (0.56–0.86)	.03	0.79 (0.67–0.91)	.36
Standard EPDS-2 ≥10	0.85 (0.79–0.92)	0.83 (0.71–0.96)	.79	0.86 (0.76–0.96)	.01	0.86 (0.75–0.98)	.88
Optimal cutoff scores
Optimal EPDS ≥9	0.90 (0.84–0.96)	0.81 (0.64–0.97)	—	0.95 (0.91–0.98)	—	0.92 (0.84–1.00)	—
Optimal EPDS-7 ≥7	0.89 (0.83–0.94)	0.92 (0.88–0.96)	.17	0.88 (0.79–0.98)	.18	0.88 (0.76–0.99)	.27

^aFor each χ² test for statistical comparison, the reference was the full EPDS.