TABLE 1—

Modeled Results for High-Dose Opioid Prescriptions, 2016, and Imputed Statistical Results for 35 Suppressed Opioid Prescription Variables: Massachusetts, 2011–2017

	% Imputed	RMSE	MAE	PV
Model results
M0: mean imputation	19	2.92	2.56	0.00
M1: mean‒1 SD	19	4.06	3.17	0.00
M2: 2-step	19	2.53	2.11	0.29
M3: 3-step	19	2.27	1.88	0.34
M4: mean imputation plus 2-step	19	2.65	2.26	0.17
Imputed resultsa
17 data sets	10–15	2.37 (2.26, 2.48)	1.95 (1.83, 2.07)	0.46 (0.36, 0.56)
11 data sets	16–20	2.37 (2.30, 2.44)	1.93 (1.82, 2.04)	0.43 (0.34, 0.52)
7 data sets	30–39	2.20 (2.13, 2.27)	1.76 (1.70, 1.82)	0.52 (0.43, 0.61)
All 35 data sets, mean	19	2.34 (2.28, 2.40)	1.91 (1.85, 1.97)	0.46 (0.37, 0.55)

Note. MAE = mean absolute error; PV = proportional variance; RMSE = root mean squared error.

^aIncludes 95% confidence interval.