Table 1

Median hormone, receptor, and proliferation indices in cases and controls

CasenControlnPa
Serum estradiol (pg/ml)b
 Premenopause56 (38.9–113.2)2168.5 (49.2–89.8)560.13
 Postmenopause12.3 (10–18.4)2815 (11–28.6)160.37
Serum progesterone (pg/ml)b
 Premenopause1.6 (0.5–10.2)211.1 (0.6–1.8)560.29
 Postmenopause0.5 (0.3–0.7)280.2 (0.15–0.49)160.03
Median ER LIc
 Premenopause2.6 (1.7–10.2)211.8 (1.1–3.7)560.27
 Postmenopause10.2 (4.9–18.9)2817.6 (4.8–32.0)160.25
Median PgR LIc
 Premenopause10.9 (5.4–19.0)2014.6 (11.1–18.2)520.62
 Postmenopause8.9 (3.2–11.9)267.6 (4.4–17.6)130.32
Median Ki-67 LIc
 Premenopause2.0 (0.8–5.0)202.2 (1.4–3.9)490.83
 Postmenopause0.9 (0.5–1.7)250.9 (0.6–3.12)150.50
  • a Kruskal-Wallis test.

  • b The 95% confidence intervals are shown in parentheses.

  • c The percentage of labeled cells; 95% confidence intervals are shown in parentheses.