Table 2.

Variation in problem reports by the number and frequency of prior reports of the same problem.

		Weekly		Biweekly		Monthly
		1 reporta	2 reportsb	1 report	2 reports	1 report	2 reports
Moderate/Severe Depression c
	% with Reportd	21.5	21.5	21.5	21.5	21.5	21.5
	Sensitivitye	69.6	58.8	69.1	53.4	64.2	51.0
	Specificityf	92.0	96.8	90.5	95.4	89.8	95.8
	PPVg	70.3	83.3	66.5	76.2	63.3	77.0
	NPVh	91.7	89.6	91.5	88.2	90.2	87.7
Fair/Poor Health
	% with Report	21.4	21.4	21.4	21.4	21.4	21.4
	Sensitivity	67.2	57.4	67.2	57.4	67.7	55.9
	Specificity	90.5	96.7	89.4	96.7	89.7	96.4
	PPV	65.9	82.4	63.4	82.4	64.2	80.9
	NPV	91.0	89.3	90.9	89.3	91.0	88.9
Poor Adherence
	% with Report	18.6	18.6	18.6	18.6	18.6	18.6
	Sensitivity	55.5	43.2	54.2	42.6	58.4	39.6
	Specificity	90.4	96.2	91.2	96.6	90.1	96.5
	PPV	57.0	72.0	58.3	74.2	57.3	71.8
	NPV	89.9	88.1	89.7	88.1	90.5	87.5
In Bed Due to Mental Health
	% with Report	12.9	12.9	12.9	12.9	12.9	12.9
	Sensitivity	45.4	24.2	39.5	17.5	30.3	11.7
	Specificity	91.8	97.3	91.0	97.3	90.7	97.4
	PPV	45.0	55.8	39.5	47.7	32.7	38.9
	NPV	91.9	90.0	91.0	89.2	89.7	88.6

^aPatient also reported the same health problem in the most recent assessment during the time frame.

^bPatient also reported the same health problem in the two most recent assessments during the time frame.

^cPHQ-9 score ≥10.

^dPercentage of all index assessments in which that health problem was reported.

^eProportion of index assessments reporting that health problem that also had the problem reported in the prior assessment(s).

^fProportion of index assessments not reporting that health problem that also were negative in the prior assessment(s).

^gPPV: Positive Predictive Value; given that the problem was reported in the prior assessment(s), the proportion reporting that problem in the index assessment.

^hNPV: Negative Predictive Value; given that the problem was not reported in the prior assessment(s), the proportion of index assessments that also did not report the problem.