Table 3.

Linear regression models for the relationship between intermittent claudication and the physical and mental summary scores^a.

	Physical component score (n=700)			Mental component score (n=700)
	B	Standard error	P-value	B	Standard error	P-value
Intermittent claudication
(Yes; reference group no)	378.07	141.96	0.008	116.38	142.77	0.415
Age	−3193.44	455.74	≤0.001	620.81	458.36	0.176
Sex (Male; reference group female)	187.46	65.99	0.005	274.38	66.37	≤0.001
Social class
(I and II; reference group IV and V)	284.19	125.94	0.024	430.03	126.66	≤0.001
(III; reference group IV and V)	170.25	126.92	0.180	160.74	127.66	0.208
Body mass index	−5.06	203.89	≤0.001	697.23	205.06	≤0.001
Smoking	5.36	1.73	0.004	1.74	1.74	0.420
ABPI (≤0.9; reference group >0.9)	26.07	66.92	0.697	−14.72	67.31	0.827
Angina (Yes; reference group no)	500.55	91.31	≤0.001	72.89	91.83	0.428

^aadjusted for age, sex, social class, body mass index, smoking, ankle brachial pressure index, and angina.

ABPI = ankle brachial pressure index.