Estimating Measurement Error of the Patient Activation Measure for Respondents with Partially Missing Data

Table 2

Average absolute percent errors (APEs) between true PAM mean scores and simulated mean, minimum, and maximum scores, overall and separately by PAM levels.

Missing	Overall			Level 1			Level 2			Level 3			Level 4
	APE (mean)	APE (min)	APE (max)	APE (mean)	APE (min)	APE (max)	APE (mean)	APE (min)	APE (max)	APE (mean)	APE (min)	APE (max)	APE (mean)	APE (min)	APE (max)
1	0.3%	2.5%	4.3%	0.9%	2.4%	4.4%	0.9%	2.2%	6.4%	0.5%	3.9%	2.6%	0.2%	1.6%	4.3%
2	0.2%	5.4%	7.8%	0.3%	6.0%	7.7%	1.0%	5.6%	12.0%	0.4%	7.3%	5.8%	0.4%	3.4%	7.1%
3	0.3%	8.0%	11.4%	0.6%	8.1%	12.9%	0.5%	7.6%	16.5%	0.2%	10.7%	7.5%	0.4%	5.9%	10.9%
4	0.3%	10.5%	14.4%	0.5%	11.9%	19.7%	1.6%	8.6%	18.3%	0.7%	12.1%	8.3%	0.4%	9.7%	14.8%
5	0.4%	13.0%	17.6%	1.1%	14.2%	25.1%	0.4%	11.1%	20.8%	0.1%	13.9%	10.8%	0.5%	12.9%	17.8%
6	0.3%	15.9%	20.9%	0.5%	17.7%	30.9%	0.5%	14.1%	22.3%	0.0%	15.2%	12.8%	0.3%	16.8%	22.1%
7	0.9%	17.8%	24.1%	2.0%	21.3%	35.2%	2.0%	15.4%	23.3%	0.7%	15.4%	16.0%	0.9%	19.7%	26.2%
8	0.7%	20.8%	27.4%	1.6%	23.4%	39.5%	1.2%	19.7%	25.5%	0.3%	17.3%	19.3%	0.6%	23.2%	29.6%
9	1.5%	22.7%	30.8%	3.2%	25.8%	43.2%	2.9%	22.8%	28.4%	0.7%	18.3%	24.8%	1.7%	25.0%	31.4%
10	1.8%	25.2%	33.3%	3.7%	26.9%	45.8%	3.2%	27.1%	31.0%	0.6%	20.6%	28.8%	2.1%	27.4%	32.6%
11	3.7%	25.4%	36.5%	7.1%	24.5%	49.6%	5.1%	27.3%	35.2%	0.4%	20.6%	34.9%	3.9%	28.9%	32.1%
12	7.3%	29.7%	44.4%	14.7%	30.3%	62.0%	8.4%	35.8%	47.9%	2.9%	25.5%	45.4%	6.7%	34.3%	32.7%