Table 3.

Estimated distributions (percentages) of recalled BMI^a at treatment initiation among N=8,345 patients in the full sample, stratified by whether or not the patient had a primary care visit or a weight measurement at treatment initiation and during follow-up. Estimates for the full sample are based on re-weighting the observed distributions for the n=1,153 survey respondents to account for survey invitation and response.

	Pre-episode primary care visit			Pre-episode weight, given a pre-episode primary care visit			Follow-up primary care visit			Follow-up weight, given a follow-up primary care visit
	No	Yes	p-valueb	No	Yes	p-valuec	No	Yes	p-valueb	No	Yes	p-valueb
			< 0.001			< 0.001			< 0.001			< 0.001
< 25.0	47	38		31	38		33	41		32	42
25.0 - 29.9	27	32		37	32		31	31		32	31
30.0 - 34.9	14	15		14	15		18	13		19	13
35.0 - 39.9	7	7		9	6		8	6		9	6
>= 40.0	5	10		9	9		9	8		9	8

^aBased on recalled weight and observed height information

^bBased on a chi-squared test using the (re-weighted) counts, with 4 degrees of freedom