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Table 1 Sociodemographic characteristics of the study sample, by gender and BMI–category, numbers (%)a

From: Body mass index and lifetime healthcare utilization

  Male Female
Normal weight Overweight Category I Obesity Category II/ III Obesity Normal weight Overweight Category I Obesity Category II/ III Obesity
(n=7 595) (n =7 211) (n =1 516) (n =305) (n =9 810) (n =4 566) (n=1 206) (n =326)
Age 16-24 1 693 (22) 506 (7) 86 (6) 19 (6) 1 671 (17) 325 (7) 68 (6) 17 (5)
25-44 2 498 (33) 2 453 (34) 551 (36) 125 (41) 3 546 (36) 1 348 (30) 359 (30) 125 (38)
45-66 2 270 (30) 3 131 (43) 678 (45) 128 (42) 3 237 (33) 1 948 (43) 530 (44) 139 (43)
67-79 823 (11) 915 (13) 181 (12) 30 (10) 953 (8) 702 (15) 208 (17) 29 (9)
80+ 311 (4) 206 (3) 20 (1) 3 (1) 403 (4) 243 (5) 41 (3) 16 (5)
Marital status Unmarried 3 600 (47) 2 327 (32) 485 (32) 139 (46) 3 773 (38) 1 191 (26) 334 (28) 94 (29)
Married 3 278 (43) 4 183 (58) 872 (58) 144 (47) 4 463 (46) 2 472 (54) 604 (50) 169 (52)
Widow/ widower 198 (3) 167 (2) 38 (3) 6 (2) 658 (7) 439 (10) 145 (12) 26 (8)
Divorced/ separated 517 (7) 533 (7) 120 (8) 16 (5) 913 (9) 464 (10) 123 (10) 37 (11)
Education < Upper secondary 1 528 (21) 1 249 (18) 305 (21) 81 (27) 1 806 (19) 978 (22) 291 (25) 81 (25)
Upper secondary 3 488 (49) 3 815 (54) 842 (57) 151 (51) 4 136 (44) 2 109 (47) 547 (46) 165 (51)
Higher educ. (short) 1 376 (19) 1 386 (20) 252 (17) 50 (17) 2 778 (30) 1 191 (27) 304 (26) 67 (21)
Higher educ. (long) 775 (11) 612 (9) 81 (5) 16 (5) 65 (7) 189 (4) 39 (3) 8 (2)
Geographic region East 3 675 (48) 3 320 (46) 704 (46) 148 (49) 4 939 (50) 2 176 (48) 555 (46) 151 (46)
West 1 300 (17) 1 241 (17) 256 (17) 37 (12) 1 609 (16) 754 (17) 201 (17) 49 (15)
South 1 073 (14) 1 075 (15) 210 (14) 46 (15) 1 393 (14) 607 (13) 163 (14) 47 (14)
Mid & North 1 547 (20) 1 575 (22) 346 (23) 74 (24) 1 869 (19) 1 029 (23) 287 (24) 79 (24)
Smoking status Daily 1 669 (25) 1 541 (24) 291 (22) 67 (24) 2 006 (23) 945 (23) 251 (23) 62 (21)
Occasionally 773 (12) 638 (10) 138 (10) 19 (7) 977 (11) 406 (10) 67 (6) 21 (7)
Non-smoker 4 293 (64) 4 333 (67) 915 (68) 188 (69) 5 731 (66) 2 742 (67) 778 (71) 206 (71)
Study period Years 2002-2003 1 655 (22) 1 415 (20) 242 (16) 43 (14) 2 061 (21) 878 (19) 219 (18) 45 (14)
Years 2005-2006 1 571 (21) 1 466 (20) 266 (18) 52 (17) 2 005 (20) 891 (20) 207 (17) 63 (19)
Years 2008-2009 1 398 (18) 1 372 (19) 297 (20) 53 (17) 1 915 (20) 872 (19) 216 (18) 58 (18)
Years 2012-2013 1 266 (17) 1 190 (17) 268 (18) 47 (15) 1 626 (17) 805 (18) 193 (16) 54 (17)
Years 2015-2016 1 705 (22) 1 768 (25) 443 (29) 110 (36) 2 203 (22) 1 120 (25) 371 (31) 106 (33)
  1. aMissing data were not included in the calculation of percentages