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Table 1 Baseline characteristics and number of first events according to BMI category, and for all participants

From: Association between skirt size and chronic liver disease in post-menopausal women: a prospective cohort study within the United Kingdom Trial of Ovarian Cancer Screening (UKCTOCS)

Characteristic

BMI category (kg/m2)

All participants

< 25

25 - < 30

≥18

Total, n (% of all participants)

42, 077 (44.7)

34,690 (36.9)

17,260 (18.3)

94,124

LRE, n (% of all participants)

102 (31.7)

123 (38.2)

97 (30.1)

322

Age at questionnaire return, median years (range)

63 (52–80)

64 (53–80)

64 (53–80)

64 (52–80)

IMD, mean (SD)

17.0 (13.1)

18.7 (14.1)

21.3 (15.4)

18.4 (14.0)

Smoker, n (%)

14,632 (34.8)

12,511 (36.1)

6548 (37.7)

33,691 (35.8)

Hypertension, n (%)

9382 (22.3)

11,970 (34.5)

8307 (47.9)

29,659 (31.5)

Heart disease, n (%)

1698 (4.0)

2052 (5.9)

1392 (8.0)

5142 (5.5)

Hypercholesterolaemia, n (%)

7901 (18.8)

9044 (26.1)

5369 (30.9)

22,314 (23.7)

Stroke, n (%)

523 (1.2)

552 (1.6)

314 (1.8)

1389 (1.5)

Diabetes, n (%)

827 (2.0)

1653 (4.8)

2221 (12.8)

4701 (5.0)

Rheumatoid arthritis, n (%)

1592 (3.8)

1742 (5.0)

1185 (6.8)

4519 (4.8)

Osteoarthritis, n (%)

5503 (13.1)

5822 (16.8)

4016 (23.1)

15,341 (16.3)

Osteoporosis, n (%)

3808 (9.1)

2082 (6.0)

770 (4.4)

6660 (7.1)

Alcohol consumption (units/week), n (%)

 None

8365 (19.9)

8.043 (23.2)

5432 (31.3)

21,840 (23.2)

  < 1–15

31,567 (75.0)

25,095 (72.3)

11,347 (65.4)

68,009 (72.3)

 16–20

1436 (3.4)

1063 (3.1)

364 (2.1)

2863 (3.0)

  ≥ 21

709 (1.7)

489 (1.4)

214 (1.2)

1412 (1.5)

Skirt size when aged in 20s, n (%)

  ≤ 16

41,428 (98.5)

33,835 (97.5)

15,691 (90.4)

90,954 (96.6)

  ≥ 18

649 (1.5)

855 (2.5)

1666 (9.6)

3170 (3.4)

Skirt size at time of questionnaire completion, n (%)

  ≤ 16

40,792 (96.9)

26,982 (77.8)

4481 (25.8)

72,255 (76.8)

  ≥ 18

1285 (3.1)

7708 (22.2)

12,876 (74.2)

21,869 (23.2)

 Change in skirt size, median (interquartile range)

0.0244 (0.03)

0.0408 (0.04)

0.0667 (0.05)

0.0323 (0.04)

Overall change in skirt size, n (%)

 Decrease

4811 (11.4)

1153 (3.3)

362 (2.1)

6326 (6.7)

 No change

12,344 (29.3)

3422 (9.9)

731 (4.2)

16,497 (17.5)

 Increase

24,922 (59.2)

30,115 (86.8)

16,264 (93.7)

71,301 (75.8)