Table 2 Mean (SD) scores of the Short Form 36 (SF-36) domains in each angina severity group at baseline

SF-36 domains	AP CCS class						p Value test for trend
	II (n = 66)		III (n = 141)		IV (n = 94)
	Mean	SD	Mean	SD	Mean	SD
Physical role functioning	52.28	29.23	37.04	28.19	35.69	25.58	<0.001
Physical functioning	63.08	22.44	46.24	23.66	44.09	24.77	<0.001
Pain	47.38	20.79	36.79	21.85	33.64	23.11	<0.001
Health status	59.53	15.37	52.82	17.35	51.89	19.49	<0.02
Vitality	54.45	21.29	42.74	21.41	45.08	20.05	<0.02
Social functioning	81.05	25.88	71.85	26.01	75	26.40	0.23
Emotional role functioning	68.93	41.92	62.20	42.70	65.66	42.64	0.75
Wellbeing	76.39	17.16	66.41	19.75	70.78	20.44	0.16

AP, angina pectoris; CCS, Canadian Cardiac Society.