Table 1

General characteristics of the study population

Variables
N (%)
TotalUnderweight (<18.5)Normal weight (18.5 to <23)Overweight (23 to <25)Obese (25 to <30)Severely obese (≥30)
Total36 211 (100.0%)1729 (4.8%)14 583 (40.3%)8508 (23.5%)10 030 (27.7%)1361 (3.8%)
Sex
 Men15 428 (42.6%)537 (31.1%)5546 (38.0%)4036 (47.4%)4815 (48.0%)494 (36.3%)
 Women20 783 (57.4%)1192 (68.9%)9037 (62.0%)4472 (52.6%)5215 (52.0%)867 (63.7%)
Age (years)
 Mean (SE)49.6 (0.2)43.1 (0.6)47.6 (0.2)51.7 (0.2)52.2 (0.2)47.4 (0.5)
 18–294862 (13.4%)600 (34.7%)2512 (17.2%)769 (9.0%)771 (7.7%)210 (15.4%)
 30–396832 (18.9%)392 (22.7%)3184 (21.8%)1378 (16.2%)1582 (15.8%)296 (21.7%)
 40–496677 (18.4%)174 (10.1%)2599 (17.8%)1667 (19.6%)1965 (19.6%)272 (20.0%)
 50–596419 (17.7%)108 (6.2%)2153 (14.8%)1785 (21.5%)2155 (21.5%)218 (16.0%)
 ≥6011 421 (31.5%)455 (26.3%)4135 (28.4%)2909 (34.2%)3557 (35.5%)365 (26.8%)
Smoking status
 None10 762 (30.3%)482 (28.9%)4046 (28.4%)2675 (32.1%)3137 (31.8%)422 (31.5%)
 Current smoker3620 (10.2%)114 (6.8%)1265 (8.9%)962 (11.5%)1181 (12.0%)98 (7.3%)
 Ex-smoker21 104 (59.5%)1073 (64.3%)8956 (62.8%)4704 (56.4%)5552 (56.3%)819 (61.2%)
Marital status
 Married25 810 (71.7%)940 (54.7%)9989 (68.5%)6422 (76.0%)7558 (75.8%)901 (66.7%)
 Single5273 (14.6%)585 (34.1%)2693 (18.6%)883 (10.4%)878 (8.8%)234 (17.3%)
 Divorced/widowed/separated4913 (13.6%)193 (11.2%)1817 (12.5%)1150 (13.6%)1537 (15.4%)216 (16.0%)
Education
 Elementary school degree or less9594 (27.1%)368 (22.0%)3337 (23.4%)2375 (28.6%)3117 (31.7%)397 (29.7%)
 Middle school degree4085 (11.5%)124 (7.4%)1444 (10.1%)1075 (12.9%)1289 (13.1%)153 (11.4%)
 High school degree12 005 (33.9%)580 (34.6%)5181 (36.4%)2711 (32.7%)3047 (31.0%)486 (36.3%)
 Bachelor’s degree or more9687 (27.4%)602 (36.0%)4272 (30.0%)2142 (25.8%)2369 (24.1%)302 (22.6%)
House income
 Low income7297 (20.6%)361 (21.4%)2860 (20.0%)1655 (19.9%)2141 (21.7%)280 (21.0%)
 Mid-lower income8999 (25.4%)399 (23.6%)3514 (24.6%)2119 (25.5%)2546 (25.9%)421 (31.6%)
 Mid-upper income9534 (26.9%)437 (25.9%)3965 (27.8%)2172 (26.1%)2600 (26.4%)360 (27.0%)
 High income9634 (27.2%)492 (29.1%)3934 (27.6%)2377 (28.6%)2558 (26.0%)273 (20.5%)
Disease
 None16 217 (44.8%)1280 (74.0%)8245 (57.8%)3402 (40.0%)2794 (27.9%)316 (23.2%)
 Any of the following19 994 (55.2%)449 (26.0%)6158 (42.2%)5106 (60.0%)7236 (72.1%)1045 (76.8%)
 Hypertension11 196 (30.9%)227 (13.1%)3057 (21.0%)2792 (32.8%)4420 (44.1%)700 (51.4%)
 Diabetes3551 (9.8%)60 (3.5%)966 (6.6%)855 (10.0%)1414 (14.1%)256 (18.8%)
 Dyslipidaemia11 755 (32.5%)182 (10.5%)3221 (22.1%)3086 (36.3%)4629 (46.2%)637 (46.8%)
 Coronary heart disease863 (2.4%)16 (0.9%)239 (1.6%)241 (2.8%)325 (3.2%)42 (3.1%)
 Stroke718 (2.0%)23 (1.3%)235 (1.6%)183 (2.2%)248 (2.5%)29 (2.1%)
 Osteoarthritis4157 (11.5%)62 (3.6)1148 (7.9%)1040 (12.2%)1654 (16.5%)253 (18.6%)
 Depression1375 (3.8%)46 (2.7%)529 (3.6%)320 (3.8%)419 (4.2%)61 (4.5%)