Table 2. General Health Item Comparisons.

						90% confidence interval from equivalence testing
Variable	N	Mean	Std Error of Mean	95% CL for Mean		vs. MEPS	vs. NHANES	vs. BRFSS
General Health (5- Excellent, 4-Very Good, 3-Good, 2-Fair, 1-Poor)
2004 MEPS	20777	3.56	0.012	3.54	3.59
2001-2002 NHANES	6873	3.50	0.017	3.47	3.54
2005 BRFSS	352036	3.52	0.004	3.52	3.53
PROMIS: General population (Unweighted)	11794	3.50	0.009	3.48	3.52	−0.085, −0.035	−0.032, 0.032	−0.036, −0.004
PROMIS: General population (weighted)	218022053	3.42	0.016	3.39	3.45	−0.175, −0.108	−0.120, −0.043	−0.129, −0.074
PROMIS: General population sub-sample	2196	3.53	0.020	3.49	3.57	−0.068, 0.008	−0.013, 0.073	−0.024, 0.044

Note: equivalencies are printed in boldface type.