Table 2. Demographic and health characteristics among 376 Michigan Study of Women’s Health Across the Nation Participants, Overall and by WHO-DAS Disability Category.

	Overall	No Problem	Mild Problem	Moderate Problem	Severe or Extreme Problem	Test Statistic (DF)*	P-value
	N=376	N=124	N=161	N=72	N=19
Demographics
Age, years (mean, SD)	60.6 (2.8)	60.9 (2.9)	60.5 (2.7)	60.7 (2.8)	59.8 (2.3)	1.73 (1)	0.19
	Percent	Percent	Percent	Percent	Percent
Race/ethnicity
African-American	38.8	30.8	50.0	13.7	5.5	7.0 (3)	0.07
Caucasian	61.2	34.4	38.3	22.6	4.8
Economic Strain
None	56.0	43.5	43.1	11.5	1.9	60.3 (6)	<0.001
Some	34.6	28.2	47.3	22.5	7.8
Substantial	9.4	5.7	28.6	54.3	11.4
Education
High school or less	29.7	26.9	42.6	24.1	6.5	10.4 (6)	0.11
Some college	45.6	34.9	39.2	19.9	6.0
College or more	24.7	32.4	52.2	11.1	2.2
Marital Status
Single	17.0	33.3	33.3	25.4	7.9	8.8 (6)	0.19
Married	46.2	30.8	49.4	16.9	2.9
Formerly Married	36.8	35.0	39.4	19.0	6.6
Menopause Status
Surgical Postmenopause	13.8	34.6	36.5	19.2	9.6	3.1 (3)	0.38
Natural Postmenopause	86.2	32.7	43.8	19.1	4.3
Health Status
Obesity (BMI≥30 kg/m2)	61.0	24.1	52.3	19.1	4.5	20.0 (3)	<0.001
Diabetes	30.1	24.8	44.3	25.7	5.3	7.0 (3)	0.07
Knee osteoarthritis	70.1	26.0	48.4	21.1	4.5	19.0 (3)	<0.001
Peripheral neuropathy	21.3	2.5	42.5	41.3	13.8	69.8 (3)	<0.001
Depressive symptomatology	22.1	3.6	38.6	42.2	15.7	83.9 (3)	<0.001
Hypertension	61.1	30.4	41.3	22.2	6.1	5.6 (3)	0.14

^*Degrees of freedom (DF). Test statistics are from ANOVA global F-test for continuous variables (age) and from chi-square test for categorical variables (all others).