Table 1 Characteristics of analytic and non-analytic samples (Australian women age 47–52)
Analytic sample N = 10371a | Non-analytic sample N = 3343a | p-valueb | |
|---|---|---|---|
Mean (SD) | Mean (SD) | ||
Age | 49.1 (1.5) | 49.1 (1.5) | 0.51 |
Missing | 1 | 1 | |
n (%) | n (%) | ||
Country of birth | |||
Australia | 7957 (77.5%) | 2348 (71.6%) | < 0.001 |
Other English-speaking country | 1422 (13.9%) | 398 (12.1%) | |
Europe | 591 (5.8%) | 302 (9.2%) | |
Asia/Other | 291 (2.8%) | 231 (7.0%) | |
Missing | 110 | 64 | |
Area of residence | |||
Major city | 3299 (33.1%) | 782 (33.9%) | 0.006 |
Inner regional | 4094 (41.1%) | 864 (37.4%) | |
Outer regional | 2073 (20.8%) | 538 (23.3%) | |
Remote/Very remote | 498 (5.0%) | 124 (5.4%) | |
Missing | 407 | 1035 | |
Educational attainment | |||
< 12 years school | 4814 (46.8%) | 1984 (60.4%) | < 0.001 |
12 years school | 1735 (16.9%) | 551 (16.8%) | |
Post-school certificate | 2118 (20.6%) | 481 (14.6%) | |
Degree/Higher degree | 1623 (15.8%) | 269 (8.2%) | |
Missing | 81 | 58 | |
Marital status | |||
Single | 312 (3.1%) | 88 (3.8%) | < 0.001 |
Married | 8318 (83.5%) | 1806 (78.6%) | |
Separated/Divorced/Widowed | 1328 (13.3%) | 404 (17.6%) | |
Missing | 413 | 1045 | |
Ability to manage on income | |||
Easy | 1534 (15.9%) | 212 (11.5%) | < 0.001 |
Not too bad | 4018 (41.6%) | 626 (33.9%) | |
Difficult sometimes | 2774 (28.7%) | 604 (32.7%) | |
Impossible/Difficult always | 1324 (13.7%) | 406 (22.0%) | |
Missing | 721 | 1495 | |
Hours paid work | |||
None | 1903 (21.2%) | 561 (33.3%) | < 0.001 |
1–34 h/week | 3330 (37.2%) | 561 (33.3%) | |
≥ 35 h/week | 3723 (41.6%) | 563 (33.4%) | |
Missing | 1415 | 1658 | |
Living with children age < 18 | |||
No | 6539 (68.5%) | 1247 (68.4%) | 0.91 |
Yes | 3006 (31.5%) | 577 (31.6%) | |
Missing | 826 | 1519 | |
Provides care for grandchildren | |||
None | 5641 (59.1%) | 1023 (56.4%) | 0.003 |
Occasionally | 3158 (33.1%) | 608 (33.5%) | |
Weekly/Daily | 741 (7.8%) | 182 (10.0%) | |
Missing | 831 | 1530 | |
Provides care for others | |||
None | 5686 (68.2%) | 1043 (70.5%) | 0.18 |
Occasionally | 706 (8.5%) | 110 (7.4%) | |
Weekly/Daily | 1941 (23.3%) | 326 (22.0%) | |
Missing | 2038 | 1864 | |
Menopause status | |||
Post-menopause | 1123 (11.1%) | 460 (17.1%) | |
HRT/OCP use | 1540 (15.3%) | 291 (10.8%) | |
Pre-menopause | 2379 (23.6%) | 417 (15.5%) | |
Peri-menopause | 2461 (24.4%) | 539 (20.0%) | |
Missing | 277 | 654 | |
BMI | |||
Underweight/Normal | 4479 (49.0%) | 746 (44.6%) | < 0.001 |
Overweight | 2873 (31.5%) | 520 (31.1%) | |
Obese | 1782 (19.5%) | 406 (24.3%) | |
Missing | 1237 | 1671 | |
Physical healthc | |||
First quartile (highest) | 2509 (25.4%) | 520 (23.1%) | < 0.001 |
Second quartile | 2560 (26.0%) | 467 (20.8%) | |
Third quartile | 2494 (25.3%) | 535 (23.8%) | |
Fourth quartile (lowest) | 2302 (23.3%) | 727 (32.3%) | |
Missing | 506 | 1094 | |
Mental healthc | |||
First quartile (highest) | 2528 (25.6%) | 498 (22.1%) | < 0.001 |
Second quartile | 2545 (25.8%) | 486 (21.6%) | |
Third quartile | 2433 (24.7%) | 595 (26.5%) | |
Fourth quartile (lowest) | 2359 (23.9%) | 670 (29.8%) | |
Missing | 506 | 1094 | |
Chronic conditions | |||
0 | 3545 (35.4%) | 802 (34.5%) | < 0.001 |
1 | 3197 (31.9%) | 636 (27.4%) | |
2 | 1858 (18.6%) | 431 (18.6%) | |
≥ 3 | 1415 (14.1%) | 454 (19.5%) | |
Missing | 356 | 1020 | |
Smoking status | |||
Non-smoker | 5532 (57.2%) | 975 (51.7%) | < 0.001 |
Ex-smoker | 2633 (27.2%) | 438 (23.2%) | |
Current smoker | 1513 (15.6%) | 473 (25.1%) | |
Missing | 693 | 1457 | |
Alcohol status | |||
Non-drinker | 1187 (12.3%) | 355 (18.9%) | < 0.001 |
Rare drinker | 2681 (27.7%) | 627 (33.4%) | |
Low-risk drinkerd | 5265 (54.4%) | 786 (41.9%) | |
Risky/high-risk drinkerd | 537 (5.6%) | 108 (5.8%) | |
Missing | 701 | 1467 | |