Estrogen receptor-positive | Estrogen receptor-negative | |||||||||
---|---|---|---|---|---|---|---|---|---|---|
NSAID use | Number of cancers | Person-years | Relative riska | 95% confidence interval | P value for trend | Number of cancers | Person-years | Relative riska | 95% confidence interval | P value for trend |
Aspirin useb | ||||||||||
Never | 493 | 280,706 | 1.00 (referent) | 0.06 | 88 | 279,308 | 1.00 (referent) | 0.54 | ||
<1/week | 464 | 262,491 | 0.98 | 0.86 to 1.11 | 93 | 261,137 | 1.09 | 0.81 to 1.47 | ||
1–6/week | 243 | 131,724 | 1.00 | 0.86 to 1.17 | 42 | 131,022 | 1.01 | 0.70 to 1.47 | ||
1+/day | 223 | 143,476 | 0.84 | 0.71 to 0.98 | 52 | 142,852 | 1.14 | 0.81 to 1.62 | ||
Nonaspirin NSAID useb | ||||||||||
Never | 541 | 325,816 | 1.00 (referent) | 0.86 | 108 | 324,250 | 1.00 (referent) | 0.64 | ||
<1/week | 466 | 258,767 | 1.04 | 0.92 to 1.18 | 96 | 257,460 | 1.08 | 0.81 to 1.43 | ||
1–6/week | 230 | 124,804 | 1.07 | 0.92 to 1.26 | 36 | 124,115 | 0.85 | 0.58 to 1.25 | ||
1+/day | 186 | 107,763 | 0.98 | 0.83 to 1.16 | 36 | 107,241 | 0.97 | 0.66 to 1.42 |