Table 1

Characteristics of the study population

VariableNative oestrogen (control group)Decreased oestrogen (group 1)Augmented oestrogen (group 2)P value
Total N (%)11 923 (81.2)227 (1.5)2535 (17.3)
DeathsNo11 377 (95.4)204 (89.9)2481 (97.9)<0.001
Yes546 (4.6)23 (10.1)54 (2.1)
AgeMean (SD)61.2 (8.3)64.4 (8.9)60.9 (7.7)<0.001
wCCIMean (SD)1.4 (2.4)5.0 (3.3)1.6 (2.5)<0.001
Income quintiles, n (%)Richest3422 (28.7)64 (28.2)937 (37.0)<0.001
Rich2743 (23.0)42 (18.5)605 (23.9)
Middle2120 (17.8)35 (15.4)404 (15.9)
Poor1703 (14.3)47 (20.7)334 (13.2)
Poorest1903 (16.0)39 (17.2)253 (10.0)
Missing32 (0.3)0 (0)2 (0.1)
Education, n (%)Tertiary4186 (35.1)82 (36.1)1074 (42.4)<0.001
Secondary5609 (47.0)97 (42.7)1150 (45.4)
Primary1882 (15.8)45 (19.8)290 (11.4)
Missing246 (2.1)3 (1.3)21 (0.8)
  • wCCI, weighted Charlson Comorbidity Index.