Table 1.
Cases | Person-Years | Age-adjusted Relative Risk (95% confidence interval) | Multivariate adjusted Relative Risk* | |
---|---|---|---|---|
Relative Risk | ||||
Total Stroke | ||||
Never Used Hormones | 360 | 485,987 | 1.0 (reference) | |
Current Use of: | ||||
Estrogen Alone | 276 | 256,437 | 1.33 (1.13,1.55) | 1.39 (1.18,1.63) |
Estrogen + Progestin | 138 | 153,192 | 1.17 (0.96,1.42) | 1.27 (1.04,1.56) |
Ischemic Stroke | ||||
Never Used Hormones | 235 | 485,987 | 1.0 (reference) | |
Current Use of: | ||||
Estrogen Alone | 183 | 256,437 | 1.33 (1.09,1.61) | 1.43 (1.17,1.74) |
Estrogen + Progestin | 103 | 153,192 | 1.32 (1.05,1.67) | 1.53 (1.21,1.95) |
Hemorrhagic Stroke | ||||
Never Used Hormones | 85 | 485,987 | 1.0 (reference) | |
Current Use of: | ||||
Estrogen Alone | 61 | 256,437 | 1.35 (0.97,1.88) | 1.37 (0.98,1.91) |
Estrogen + Progestin | 24 | 153,192 | 0.88 (0.56,1.38) | 0.87 (0.55,1.39) |
Fatal Stroke | ||||
Never Used Hormones | 50 | 485,987 | 1.0 (reference) | |
Current Use of: | ||||
Estrogen Alone | 33 | 256,437 | 1.20 (0.77,1.86) | 1.22 (0.78,1.90) |
Estrogen + Progestin | 15 | 153,192 | 0.93 (0.52,1.66) | 1.03 (0.57,1.86) |
Non-fatal Stroke | ||||
Never Used Hormones | 310 | 485,987 | 1.0 (reference) | |
Current Use of: | ||||
Estrogen Alone | 243 | 256,437 | 1.35 (1.14,1.60) | 1.41 (1.19,1.68) |
Estrogen + Progestin | 123 | 153,192 | 1.20 (0.98,1.48) | 1.31 (1.05,1.62) |
Adjusted for age, BMI, high cholesterol, diabetes, high blood pressure, husband’s education, smoking, family history premature MI.