TABLE 4.

Rates and hazard ratios for cardiovascular disease events by CRF groups in women, Aerobics Center Longitudinal Study, Dallas, Texas, 1971-2004

	Events	Rate†	HR‡	95% CI‡	HR§	95% CI§
Total CVD
Low CRF	35	41.9	1.00	Referent	1.00	Referent
Moderate CRF	63	27.7	0.74	0.49, 1.13	0.83	0.54, 1.28
High CRF	61	20.8	0.63	0.40, 0.98	0.78	0.49, 1.23
p linear trend		0.002		0.05		0.30
Coronary heart disease
Low CRF	22	26.6	1.00	Referent	1.00	Referent
Moderate CRF	40	17.7	0.79	0.47, 1.35	0.93	0.54, 1.60
High CRF	35	11.8	0.61	0.35, 1.09	0.82	0.45, 1.48
p linear trend		0.004		0.09		0.49
Myocardial infarction
Low CRF	12	13.7	1.00	Referent	1.00	Referent
Moderate CRF	24	10.5	0.92	0.45, 1.88	1.08	0.53, 2.22
High CRF	17	6.1	0.62	0.28, 1.36	0.81	0.36, 1.82
p linear trend		0.03		0.19		0.55
Stroke
Low CRF	13	15.3	1.00	Referent	1.00	Referent
Moderate CRF	23	10.0	0.65	0.33, 1.31	0.68	0.34, 1.38
High CRF	26	9.1	0.64	0.31, 1.30	0.69	0.33, 1.44
p linear trend		0.18		0.28		0.40

Abbreviations, †, ‡, and § are the same as in Table 3.

There were 19,808, 19,504, and 20,853 woman-years of follow-up in the low, moderate, and high fitness groups, respectively.