Table 1.

Characteristics of the Cohort at Baseline Overall and by Race/Ethnicity

	Total (N=3056)		Hispanic (N=229)		Chinese (N=242)		Japanese (N=275)		African American (N=860)		Caucasian (N=1450)		p-value**
	Mean	SD	Mean	SD	Mean	SD	Mean	SD	Mean	SD	Mean	SD
Age, years	46.4	2.7	46.3	2.8	46.5	2.6	46.7	2.7	46.3	2.7	46.3	2.7	0.222
BMI (kg/m2)	28.2	7.3	29.3	6.2	23.3	3.9	22.9	3.7	31.8	7.8	27.8	6.9	<.001
SF-36 Bodily Pain Score (0–100)	69.4	22.3	54.4	25.8	74.4	23.0	75.4	20.1	67.2	23.5	71.1	20.0	<.001
Everyday Discrimination	1.7	0.5	1.2	0.4	1.8	0.5	1.6	0.5	1.9	0.5	1.6	0.4	<.001
	N	%	N	%	N	%	N	%	N	%	N	%
Number of pain medications
2	32	1.0	1	0.4	0	0	0	0	17	2.0	14	1.0	<.001
1	868	28.4	80	34.9	39	16.1	43	15.6	252	29.3	454	31.3
0	2156	70.5	148	64.6	203	83.9	232	84.4	591	68.7	982	67.7
Education
≤ high school	727	23.8	160	69.9	69	28.5	48	17.5	225	26.2	225	15.5	<.001
some college	993	32.5	47	20.5	51	21.1	95	34.6	351	40.8	449	31.0
college	628	20.5	17	7.4	70	28.9	85	30.9	138	16	318	21.9
graduate school	708	23.2	5	2.2	52	21.5	47	17.1	147	17	458	31.6
Pre-menopausal*	1608	52.6	122	53.3	148	61.2	170	61.8	422	49.3	746	51.7	<.001
Smoking	497	16.3	33	14.4	3	1.2	35	12.7	205	23.8	221	15.2	<.001
CES-D=16+	722	23.6	100	43.9	33	13.6	40	14.5	226	26.3	323	22.3	<.001
No. of Upsetting Life
≥2	880	28.9	53	23.1	25	10.3	52	18.9	292	34.3	458	31.6	<.001
1	623	20.5	53	23.1	41	16.9	45	16.4	180	21.2	304	21.0
0	1542	50.6	123	53.7	176	72.7	178	64.7	379	44.5	686	47.4

^*At baseline, participants were either pre- or peri-menopausal

^**p-value from ANOVA for continuous variables, from chi-square tests for categorical variables