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. 2016 Jun 30;11(6):e0157928. doi: 10.1371/journal.pone.0157928

Table 1. Sample characteristics.

Total sample Men Women Comparison men vs. women
N mean (SD) mean (SD) mean (SD)
Age [years] 2507 48.79 (18.11) 48.31 (18.17) 49.17 (18.05) t = 1.18
n (%) n (%) n (%)
Age Groups [years] 2507 χ2 = 7.68
≤ 24 276 (11.0) 139 (12.5) 137 (9.8)
25 to 34 376 (15.0) 159 (14.3) 217 (15.6)
35 to 44 374 (14.9) 166 (14.9) 208 (14.9)
45 to 54 469 (18.7) 196 (17.6) 273 (19.6)
55 to 64 460 (18.3) 215 (19.3) 245 (17.6)
65 to 74 347 (13.8) 155 (13.9) 192 (13.8)
≥ 75 205 (8.2) 85 (7.6) 120 (8.6)
Marital status 2498 χ2 = 11.29**
Married/living together 1102 (44.1) 532 (47.8) 570 (41.1)
Living apart/single/divorced/widowed 1396 (55.9) 580 (52.2) 816 (58.9)
Nationality 2507 χ2 < 0.01
German 2421 (96.6) 1077 (96.6) 1344 (96.6)
Other 86 (3.4) 38 (3.4) 48 (3.4)
School years 2507 χ2 = 0.81
≥ 12 years 517 (20.6) 239 (21.4) 278 (20.0)
< 12 years 1990 (79.4) 876 (78.6) 1114 (80.0)
Weight categories 2465 χ2 = 66.10***
underweight 40 (1.6) 7 (0.6) 33 (2.4)
normalweight 1071 (42.6) 419 (38.2) 648 (47.3)
overweight 967 (38.5) 512 (46.7) 455 (33.2)
obesity grade 1 246 (9.8) 115 (10.5) 129 (9.4)
obesity grade 2 102 (4.1) 30 (2.7) 72 (5.3)

Note.

** p < 0.01,

*** p < 0.01