Table 1. Characteristics of women and men by body mass index (BMI) categories.
| BMI (kg/m2) | |||||||||||||||||||||||||||
| Total n | <22.5 | 22.5–<25.0 | 25.0–<27.5 | 27.5–<30.0 | 30.0–<32.5 | ≥32.5 | Ptrend b | ||||||||||||||||||||
| Women | |||||||||||||||||||||||||||
| Numbers | 2,169 | 442a | 470a | 462a | 348a | 223a | 224a | ||||||||||||||||||||
| Age, years (SD) | 2,169 | 51.9 | (12.7) | 52.1 | (12.1) | 55.5 | (12.6) | 57.2 | (12.8) | 57.5 | (13.5) | 54.7 | (12.6) | <0.001 | |||||||||||||
| Lower education (%)c | 2,128 | 235 | (54.2) | 250 | (53.3) | 296 | (65.9) | 241 | (71.3) | 155 | (70.5) | 154 | (70.6) | <0.001 | |||||||||||||
| Low household income (%)d | 1,970 | 80 | (19.9) | 86 | (20.0) | 107 | (24.9) | 96 | (30.6) | 50 | (25.6) | 69 | (34.9) | <0.006 | |||||||||||||
| Residing with children (%) | 1,862 | 183 | (46.8) | 183 | (45.2) | 148 | (37.3) | 91 | (31.3) | 62 | (33.0) | 71 | (37.4) | 0.69 | |||||||||||||
| Height, cm (SD) | 2,169 | 165.1 | (6.2) | 164.6 | (6.0) | 163.2 | (6.0) | 163.0 | (6.8) | 163.5 | (6.6) | 163.0 | (6.6) | <0.001 | |||||||||||||
| Diabetes mellitus (%) | 2,115 | 7 | (1.6) | 11 | (2.4) | 10 | (2.2) | 13 | (3.9) | 19 | (8.8) | 23 | (10.7) | <0.001 | |||||||||||||
| HbA1c,% (SD) | 2,109 | 5.4 | (0.4) | 5.4 | (0.4) | 5.5 | (0.5) | 5.6 | (0.6) | 5.8 | (0.7) | 5.9 | (0.9) | <0.001 | |||||||||||||
| Recent Hospitalization (%)e | 2,134 | 53 | (12.2) | 35 | (7.5) | 52 | (11.4) | 45 | (13.2) | 20 | (9.2) | 34 | (15.5) | 0.22 | |||||||||||||
| Low physical activity (%)f | 2,018 | 46 | (11.2) | 74 | (16.8) | 75 | (17.3) | 76 | (23.8) | 48 | (23.5) | 65 | (31.7) | <0.001 | |||||||||||||
| Current daily smoking (%) | 2,135 | 123 | (27.9) | 108 | (23.3) | 95 | (20.8) | 73 | (21.4) | 35 | (16.1) | 32 | (14.8) | <0.001 | |||||||||||||
| Alcohol intake ≥2 times a week (%) | 2,135 | 93 | (21.3) | 107 | (23.0) | 79 | (17.3) | 50 | (14.6) | 33 | (15.4) | 26 | (11.9) | <0.001 | |||||||||||||
| Atopic eczema (%) | 1,912 | 38 | (9.7) | 39 | (9.1) | 47 | (11.6) | 22 | (7.3) | 19 | (10.1) | 22 | (11.5) | 0.34 | |||||||||||||
| Psoriasis (%) | 1,957 | 32 | (7.9) | 33 | (7.7) | 43 | (10.4) | 32 | (10.1) | 22 | (11.0) | 22 | (9.4) | 0.10 | |||||||||||||
| Men | |||||||||||||||||||||||||||
| Numbers | 1,709 | 132a | 334a | 479a | 410a | 214a | 140a | ||||||||||||||||||||
| Age, years (SD) | 1,709 | 53.7 | (14.5) | 52.9 | (13.4) | 54.0 | (12.6) | 53.6 | (12.1) | 53.6 | (12.3) | 54.4 | (10.8) | 0.46 | |||||||||||||
| Lower education (%)c | 1,696 | 76 | (57.6) | 177 | (53.6) | 282 | (59.4) | 251 | (61.7) | 140 | (65.7) | 88 | (63.3) | 0.01 | |||||||||||||
| Low household income (%)d | 1,654 | 27 | (21.4) | 55 | (17.0) | 69 | (14.9) | 53 | (13.4) | 33 | (15.9) | 21 | (15.3) | 0.19 | |||||||||||||
| Residing with children (%) | 1,506 | 51 | (43.6) | 138 | (47.1) | 183 | (43.2) | 150 | (41.3) | 74 | (38.3) | 35 | (30.2) | 0.10 | |||||||||||||
| Height, cm (SD) | 1,709 | 178.0 | (7.6) | 177.9 | (6.8) | 177.1 | (6.9) | 177.4 | (6.8) | 177.5 | (7.1) | 175.8 | (7.1) | 0.02 | |||||||||||||
| Diabetes mellitus (%) | 1,675 | 2 | (1.5) | 4 | (1.2) | 12 | (2.5) | 14 | (3.5) | 9 | (4.4) | 10 | (7.4) | <0.001 | |||||||||||||
| HbA1c,% (SD) | 1,679 | 5.5 | (0.4) | 5.5 | (0.5) | 5.6 | (0.7) | 5.7 | (0.5) | 5.7 | (0.6) | 5.9 | (0.8) | <0.001 | |||||||||||||
| Recent Hospitalization (%)e | 1,692 | 14 | (10.6) | 28 | (8.5) | 31 | (6.5) | 57 | (14.0) | 24 | (11.3) | 14 | (10.3) | 0.10 | |||||||||||||
| Low physical activity (%)f | 1,635 | 25 | (20.2) | 54 | (16.8) | 68 | (14.8) | 84 | (21.5) | 51 | (25.0) | 49 | (36.3) | <0.001 | |||||||||||||
| Current daily smoking (%) | 1,695 | 45 | (34.4) | 64 | (19.2) | 91 | (19.1) | 63 | (15.6) | 36 | (17.0) | 29 | (21.2) | 0.01 | |||||||||||||
| Alcohol intake ≥2 times a week (%) | 1,690 | 38 | (29.2) | 93 | (28.2) | 115 | (24.2) | 94 | (23.1) | 36 | (17.3) | 21 | (15.1) | <0.001 | |||||||||||||
| Atopic eczema (%) | 1,534 | 10 | (8.6) | 23 | (7.5) | 35 | (8.0) | 30 | (8.2) | 9 | (5.0) | 8 | (6.25) | 0.34 | |||||||||||||
| Psoriasis (%) | 1,558 | 10 | (8.6) | 30 | (9.6) | 27 | (6.2) | 39 | (10.4) | 18 | (9.5) | 14 | (10.7) | 0.37 | |||||||||||||
The Tromsø Staph and Skin Study (n = 3,878)a.
Values are given as means (standard deviation), and numbers (%).
n, numbers; SD, standard deviation; HbA1c, glycated haemoglobin.
a
Numbers may vary due to missing information.
b
P for trend, age-adjusted.
c
< College/university degree.
d
< Level of the lowest income quintile.
e
Hospitalization last 12 months.
f
Mostly sedentary recreational physical activity level like watching TV.