Table 1 Patient characteristics and health behaviours at PROCAS entry by BMI category at age 20 (n = 48 604)

N (%)

48,604

48,604

3609 (7.4)

38,738 (79.7)

5082 (10.5)

1223 (2.5)

Age (years)^b

Missing n = 0

–

57.2 (51.8–63.7)

57.1 (51.8–63.8)

57.4 (51.8–63.8)

56.8 (51.4–63.3)

56.7 (50.7–61.0)

Duration age 20 to PROCAS entry (years)^a

–

38.0 (7.0)

37.9 (7.0)

38.1 (7.0)

37.7 (7.0)

36.2 (6.6)

Height (m)^a

Missing n = 0

–

1.62 (0.07)

1.63 (0.07)

1.62 (0.06)

1.60 (0.07)

1.61 (0.07)

Weight at PROCAS entry (kg)^b

Missing n = 0

57.2 (50.8–62.6)

68.9 (61.2–79.4)

62.6 (56.2–69.9)

68.0 (60.8–76.2)

82.1 (71.2–93.0)

95.4 (79.8–108.9)

BMI at PROCAS entry (kg/m²)^b

Missing n = 0

21.6 (20.0–62.6)

26.3 (23.5–30.1)

23.4 (21.1–26.1)

26.0 (23.4–29.2)

31.8 (28.2–35.8)

37.1 (31.1–41.9)

BMI category at PROCAS entry^c

 Underweight (< 18 kg/m²)

3609 (7.4)

376 (0.8)

169 (4.7)

204 (0.5)

3 (0.1)

0 (0.0)

 Healthy weight (18–24.9 kg/m²)

38,738 (79.7)

18,523 (38.1)

2249 (62.3)

15,692 (40.5)

522 (10.4)

60 (4.9)

 Overweight (25.0–29.9 kg/m²)

5034 (10.4)

17,104 (35.2)

873 (24.2)

14,739 (38.0)

1304 (25.9)

188 (15.4)

 Obese (≥ 30.0 kg/m²)

1223 (2.5)

12,601 (25.9)

318 (8.8)

8103 (20.9)

3205 (63.7)

975 (79.7)

 Missing n = 0

English Index of Multiple Deprivation 2010 decile ^c

–

 1 (most deprived)

6747 (14.0)

513 (14.3)

5009 (13.0)

915 (18.3)

310 (25.5)

 2

4781 (9.9)

372 (10.4)

3645 (9.5)

585 (11.7)

179 (14.7)

 3

4274 (8.8)

320 (8.9)

3320 (8.6)

5 498 (9.9)

136 (11.2)

 4

4987 (10.3)

372 (10.4)

3941 (10.2)

543 (10.8)

131 (10.8)

 5

4819 (9.9)

361 (10.0)

3874 (10.1)

472 (9.4)

112 (9.2)

 6

4368 (9.0)

318 (8.9)

3519 (9.1)

441 (8.8)

90 (7.4)

 7

4559 (9.4)

319 (8.9)

3736 (9.7)

436 (8.7)

68 (5.6)

 8

4957 (10.2)

365 (10.2)

4033 (10.5)

467 (9.3)

92 (7.6)

 9

4507 (9.3)

342 (9.5)

3762 (9.8)

349 (7.0)

54 (4.4)

 10 (least deprived)

4340 (8.9)

311 (8.7)

3685 (9.6)

300 (6.0)

44 (3.6)

 Missing

n = 265

n = 16

n = 214

n = 28

n = 7

Ethnicity ^c

–

 White

47,141 (95.6)

3231 (92.5)

35,975 (95.8)

4692 (95.8)

1149 (96.5)

 Asian or Asian British

613 (1.3)

126 (3.6)

436 (1.2)

40 (0.8)

11 (0.9)

 Jewish

463 (1.0)

33 (0.9)

369 (1.0)

53 (1.1)

8 (0.7)

 Black or Black British

351 (0.7)

36 (1.0)

262 (0.7)

42 (0.9)

11 (0.9)

 Mixed

1 (< 0.1)

26 (0.7)

185 (0.5)

24 (0.5)

7 (0.6)

 Other

425 (0.9)

41 (1.1)

331 (0.9)

48 (1.0)

5 (0.4)

 Missing

n = 1 463

n = 116

n = 1 180

n = 135

n = 32

Menopausal status ^c

–

 Pre/perimenopausal

15,737 (32.4)

1151 (31.9)

12,373 (31.9)

1700 (33.8)

513 (41.9)

 Postmenopausal

32,867 (67.6)

2458 (68.1)

26,365 (68.1)

3336 (66.2)

710 (58.1)

 Missing n = 0

HRT (ever used)^c

–

17,933 (37.2)

1420 (39.3)

14,469 (37.6)

1688 (33.8)

356 (29.5)

 Missing

n = 370

n = 29

n = 277

n = 47

n = 17

Alcohol

–

 Units/week^b

4.0 (0.0–10.0)

4.0 (0.0–10.0)

4.0 (0.0–10.0)

3.0 (0.0–9.0)

1.0 (0.0–6.0)

 > 14 units/week^c

5712 (12.2)

416 (12.0)

4709 (12.6)

514 (10.7)

73 (6.3)

 Missing

n = 1 822

n = 143

n = 1 390

n = 223

n = 66

Physical activity

 Minutes/week^b

210 (60–480)

210 (60–480)

240 (90–480)

180 (60–450)

150 (0–420)

 PA < 150 min/week^c

16,490 (38.0)

1244 (38.9)

12,865 (37.1)

1862 (41.6)

519 (48.2)

 Missing

–

n = 5154

n = 415

n = 4030

n = 562

n = 147

Bilateral oophorectomy^c

–

4109 (8.5)

306 (8.5)

3227 (8.3)

463 (9.2)

119 (9.7)

 Missing

n = 7725

n = 562

n = 6191

n = 801

n = 171