Table 1.

Distributions for Age and Sex of Baseline Sample According to Pain at Baseline

	Pain at Baseline
	No Pain	Milder	Severe	Total
N	18,786	2,572	5,538	26,896
% female	52.9	55.4	63.5	55.3
Mean age (SD)	65.9 (9.9)	65.6 (10.1)	65.4 (10.3)	65.8 (10.0)