Table 1

Relationship of pregnancy variables to mortalitya

Overall mortality5-year Mortality
AliveDead (%)HR1bAliveDead (%)HR1b
Ever pregnant
 No13950 (26.5)16128 (14.8)
 Yes723262 (26.6)1.1 (0.8–1.5)838147 (14.9)1.1 (0.7–1.6)
Ever had a live/still birth
 No23775 (23.3)27138 (12.3)
 Yes625240 (27.8)1.4 (1.1–1.8)728137 (15.8)1.4 (1.0–2.1)
Number of live/still births
 Nulliparous23772 (23.2)27138 (12.3)
 114852 (26.0)1.3 (0.9–1.8)17228 (14.0)1.3 (0.8–2.0)
 2–3426166 (28.0)1.4 (1.1–1.9)49696 (16.2)1.5 (1.0–2.2)
 4+5122 (30.1)1.5 (1.0–2.5)6013 (17.8)1.7 (0.9–3.2)
Age at first live birth
 Nulliparous23772 (23.3)27138 (12.3)
 <2012938 (22.8)1.1 (0.8–1.7)14423 (13.8)1.3 (0.8–2.2)
 20–29393158 (28.7)1.4 (1.0–1.9)46586 (15.6)1.4 (0.9–2.0)
 30+10244 (30.1)1.7 (1.2–2.5)11828 (19.2)1.9 (1.2–3.2)
Age at last live/still birth
 Nulliparous23772 (23.3)27138 (12.3)
 <20277 (20.6)1.0 (0.5–2.2)313 (8.8)0.8 (0.2–2.6)
 20–29344132 (27.7)1.4 (1.0–1.8)40373 (15.3)1.4 (0.9–2.0)
 30+253101 (28.5)1.5 (1.1–2.1)29361 (17.2)1.6 (1.1–2.5)
Time since last live/still birth
 Nulliparous23772 (23.3)27138 (12.3)
 5+ yrs500161 (24.4)1.2 (0.9–1.6)57388 (13.3)1.2 (0.8–1.8)
 2–<5 yrs8139 (32.5)1.5 (1.0–2.1)9525 (20.8)1.7 (1.0–2.8)
 <2 yrs4340 (48.2)2.3 (1.5–3.4)5924 (28.9)2.3 (1.4–3.9)
Ever had induced abortion
 No487184 (27.4)564107 (16.0)
 Yes23578 (24.9)0.9 (0.7–1.1)27340 (12.8)0.7 (0.5–1.0)
Age at first induced abortion
 Never487184 (27.4)564107 (16.0)
 <18197 (26.9)0.8 (0.4–1.8)206 (23.1)1.1 (0.5–2.6)
 18+21671 (24.7)0.9 (0.7–1.2)25334 (11.9)0.7 (0.5–1.0)
Ever had a spontaneous abortion
 No765274 (26.4)880159 (15.3)
 Yes9638 (28.4)0.9 (0.6–1.2)11816 (11.9)0.7 (0.4–1.3)
  • a Not all tests were completed on the tumors of all women.

  • b HR1, adjusted for age and diagnosis year.