Table 1 Baseline participant characteristics

From: Individualized prevention of proton pump inhibitor related adverse events by risk stratification

Variable

UK biobank (n = 501,109)

NHS (n = 91,708)

NHS II (n = 99,641)

HPFS (n = 30,933)

CDARS (n = 1,356,333)

Mean (SD) age (years)

57.0 (8.1)

68.4 (7.1)

48.8 (4.6)

71.4 (8.4)

67.5 (7.0)

Female, no. (%)

272,632 (54.4)

91,708 (100.0)

99,641 (100.0)

0 (0.0)

464,727 (34.3)

White, no. (%)

474,203 (94.6)

89,158 (97.2)

95,721 (96.1)

28,243 (91.3)

NA

Postmenopausal women, no. (%)

194,109 (38.7)

91,307 (99.6)

49,182 (49.4)

0 (0.0)

NA

Mean (SD) BMI, kg/m2

27.4 (4.8)

26.9 (5.4)

27 (6.4)

23.5 (8.8)

NA

Never smoker, no. (%)

275,748 (55.0)

42,126 (45.9)

64,889 (65.1)

14,507 (46.9)

NA

No-alcohol drinkers, no. (%)

40,510 (8.1)

33,296 (36.3)

25,677 (25.8)

5827 (18.8)

NA

Median (IQR) physical activity, MET hours/week

29.5 (46.0)

12.9 (30.3)

16.7 (40.5)

38.4 (69.9)

NA

>5 portions of fruit and vegetable per day, no. (%)

189,346 (37.8)

19,743 (21.5)

17,600 (17.7)

6398 (20.7)

NA

Mean (SD) AHEI score

NA

50.8 (10.4)

51.5 (10.3)

56.1 (10.0)

NA

Prevalent comorbidities, no. (%)

     

GERD

36,188 (7.2)

27,180 (29.6)

27,648 (27.8)

8721 (28.2)

377,080 (27.8)

Gastric or duodenal ulcer

11,825 (2.4)

2819 (3.1)

2441 (2.4)

1205 (3.9)

48,828 (3.1)

Upper gastrointestinal tract bleeding

4095 (0.8)

1718 (1.9)

595 (0.6)

737 (2.4)

28,482 (2.1)

Cancer

28,690 (5.7)

13,675 (14.9)

2871 (2.9)

4234 (13.7)

223,746 (16.5)

Hypertension

294,329 (58.7)

45,044 (49.1)

17,471 (17.5)

15,673 (50.7)

694,442 (51.2)

Hypercholesterolemia

93,596 (18.7)

55,781 (60.8)

29,409 (29.5)

18,745 (60.6)

293,893 (21.7)

Diabetes

29,967 (6.0)

8257 (9.0)

3040 (3.1)

3155 (10.2)

453,348 (33.4)

Current medication use, no. (%)

     

Multivitamin

75,507 (15.1)

52,393 (57.1)

48,938 (49.1)

19,408 (62.7)

NA

PPI

51,241 (10.2)

5526 (6.0)

5222 (5.2)

4550 (14.7)

722,835 (53.3)

Aspirin

71,928 (14.4)

16,026 (17.5)

9036 (9.1)

15,837 (51.2)

737,025 (54.3)

NSAIDs

155,648 (31.1)

59,496 (64.9)

50,040 (50.2)

19,390 (62.7)

802,202 (59.1)

Statin

81,728 (16.3)

19,088 (20.8)

6499 (6.5)

11,295 (36.5)

348,707 (25.7)

ACEIs

49,453 (9.9)

10,699 (11.7)

4147 (4.2)

4767 (15.4)

230,576 (17.0)

Beta-blockers

32,399 (6.5)

14,435 (15.7)

5802 (5.8)

5078 (16.4)

97,655 (7.2)

Calcium-channel blockers

31,325 (6.3)

7908 (8.6)

2036 (2.0)

2558 (8.3)

112,575 (8.3)

Thiazide diuretics

31,105 (6.2)

12,179 (13.3)

5267 (5.3)

3168 (10.2)

12,991 (9.6)

Antidepressants

NA

9075 (9.9)

15,556 (15.6)

482 (1.6)

31,722 (2.3)

Antibiotics

NA

75,592 (82.4)

85,244 (85.6)

19,395 (62.7)

19,786 (1.5)

  1. SD standard deviation, BMI body mass index, IQR interquartile range, MET Metabolic equivalent of task, AHEI Alternate Healthy Eating Index, GERD gastroesophageal reflux disease, NSAIDs non-steroidal anti-inflammatory drugs, ACEIs angiotensin-converting enzyme inhibitors.