Table 1 The associations (odds ratios (OR) and 95% confidence intervals (CI)) between indicators of socioeconomic position and hysterectomy and/or oophorectomy in the Australian Longitudinal Study on Women’s Health older and mid-aged cohorts (using samples with data on hysterectomy status and at least one measure of SEP)
Australian Longitudinal Study on Women’s Health older cohort (born 1921–1926) (N = 12 792)Australian Longitudinal Study on Women’s Health mid-aged cohort (born 1946–1951) (N = 14 078)
Total NN (%) casesOR (95% CI)Total NN (%) casesOR (95% CI)
Own occupational class
    1. Professional and managerial1451501 (34.5)13888967 (24.9)1
    2. Para-professional749270 (36.1)1.09 (0.83 to 1.42)1222380 (31.1)1.38 (1.12 to 1.71)
    3. Trades and administrative29571074 (36.3)1.08 (0.89 to 1.31)36571120 (30.6)1.33 (1.15 to 1.55)
    4. Service and sales1287463 (36.0)1.05 (0.84 to 1.32)2123718 (33.8)1.55 (1.30 to 1.84)
    5. Manual work/machine operators1695602 (35.5)1.02 (0.82 to 1.26)2034695 (34.2)1.57 (1.32 to 1.87)
    Missing46531786 (38.4)1.17 (0.98 to 1.40)1154384 (33.3)1.52 (1.22 to 1.89)
    p Value*0.95<0.001
Head of household occupational class
    1. Professional and managerial36891326 (35.9)169081853 (26.8)1
    2. Para-professional869305 (35.1)0.97 (0.78 to 1.22)1193404 (33.9)1.38 (1.14 to 1.68)
    3. Trades and administrative2370851 (35.9)1.01 (0.86 to 1.18)2867923 (32.2)1.28 (1.11 to 1.47)
    4. Service and sales791288 (36.4)1.03 (0.81 to 1.29)1091389 (35.7)1.50 (1.23 to 1.83)
    5. Manual work/machine operators1582585 (37.0)1.05 (0.88 to 1.25)1426512 (35.9)1.51 (1.26 to 1.80)
    Missing34911341 (38.4)1.12 (0.97 to 1.28)593183 (30.9)1.21 (0.91 to 1.60)
    p Value*0.60<0.001
Age at leaving full-time education (years)
    ⩾1931889 (28.0)1883176 (19.9)1
    17–181644574 (34.9)1.39 (0.94 to 2.04)3637859 (23.6)1.27 (0.96 to 1.69)
    15–1649111796 (36.6)1.46 (1.01 to 2.11)78852586 (32.8)2.01 (1.54 to 2.62)
    ⩽1454062048 (37.8)1.57 (1.09 to 2.27)1558605 (38.8)2.57 (1.90 to 3.46)
    Missing513189 (36.8)1.47 (0.94 to 2.30)11538 (33.0)1.76 (0.88 to 3.48)
    p Value*0.01<0.001
Highest educational qualification
    University degree or higher439129 (29.4)11950377 (19.3)1
    Certificate/diploma908304 (33.5)1.27 (0.89 to 1.83)2168621 (28.6)1.66 (1.33 to 2.06)
    Trades and apprentice426155 (36.4)1.44 (0.95 to 2.18)489147 (30.1)1.78 (1.27 to 2.49)
    High school certificate1496529 (35.4)1.41 (1.00 to 1.98)2344657 (28.0)1.59 (1.28 to 1.98)
    School certificate46331734 (37.4)1.49 (1.09 to 2.04)44271416 (32.0)1.93 (1.59 to 2.34)
    No formal qualifications42091574 (37.4)1.47 (1.07 to 2.02)25511003 (39.3)2.68 (2.17 to 3.29)
    Missing681271 (39.8)1.69 (1.16 to 2.47)14943 (28.9)1.79 (0.99 to 3.24)
    p Value*0.02<0.001
  • *From test for trend across categories, excluding missing category (italics).

  • Estimates are weighted to account for stratified sampling by area of residence.