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. 2021 Mar 12;21:177. doi: 10.1186/s12877-021-02127-8

Table 1.

Description of the variables according to Body mass index categories. Colombian and South Korean population

n (%) or mean ± SD Body Mass Index classification
Underweight Normal Overweight Obese Total P value
Korea (n = 4556)
 Sex <.001
  Female 91 (55.83) 1101 (55.58) 638 (49.53) 663 (58.99) 2493 (54.72)
  Male 72 (44.17) 880 (44.42) 650 (50.47) 461 (41.01) 2063 (45.28)
 Age 76.40 ± 9.82 70.39 ± 9.72 68.98 ± 9.17 68.40 ± 8.88 69.96 ± 9.47 <.001
 Comorbidity 1.18 ± 1.02 1.02 ± 1.08 1.11 ± 1.10 1.48 ± 1.19 1.16 ± 1.12 <.001
 Education <.001
  No Education 27 (16.56) 135 (6.81) 59 (4.58) 51 (4.54) 272 (5.97)
   < High school 79 (48.47) 772 (38.97) 436 (33.85) 491 (43.68) 1778 (39.03)
  High school 39 (23.93) 760 (38.36) 579 (44.95) 417 (37.99) 1805 (39.62)
   > High school 18 (11.04) 314 (15.85) 214 (16.61) 155 (13.79) 701 (15.39)
 Smoke 0.044
  Non-smoker 105 (64.42) 1336 (67.44) 840 (65.22) 792 (70.46) 3073 (67.45)
  Past-smoker 45 (27.61) 419 (21.15) 301 (23.37) 227 (20.2) 992 (21.77)
  Current-smoker 13 (7.98) 226 (11.41) 147 (11.41) 105 (9.34) 491 (10.78)
 Exercise 0.005
  No 117 (71.78) 1188 (59.97) 745 (57.84) 691 (61.48) 2741 (60.16)
  Yes 46 (28.22) 793 (40.03) 543 (42.16) 433 (38.52) 1815 (39.84)
 Marital status <.001
  Separated, widowed or single 100 (61.35) 1531 (77.28) 1029 (79.89) 849 (75.53) 3509 (77.02)
  Married or living with 63 (38.65) 450 (22.72) 259 (20.11) 275 (24.47) 1047 (22.98)
 Weight status <.001
  No changes 114 (69.94) 1663 (83.95) 1131 (87.81) 1013 (90.12) 3921 (86.06)
  Lost 49 (30.06) 318 (16.05) 157 (12.19) 111 (9.88) 635 (13.94)
 BADL 0.68 ± 1.92 0.19 ± 0.99 0.14 ± 0.87 0.18 ± 0.99 0.19 ± 1.02 <.001
 IADL 1.63 ± 3.35 0.64 ± 2.05 0.46 ± 1.70 0.54 ± 1.90 0.61 ± 2.00 <.001
 MMSE 22.74 ± 7.20 25.45 ± 5.29 26.18 ± 4.85 25.61 ± 5.27 25.58 ± 5.30 <.001
Colombia (n = 23,343)
 Sex <.001
  Female 377 (53.55) 3450 (46.36) 4279 (55.72) 5277 (70.18) 13,383 (57.33)
  Male 327 (46.45) 3991 (53.64) 3400 (44.28) 2242 (29.82) 9960 (42.67)
 Age 73.10 ± 8.71 71.17 ± 8.14 69.61 ± 7.32 71.46 ± 8.86 70.81 ± 8.19 <.001
 Comorbidity 0.94 ± 1.03 1.03 ± 1.05 1.30 ± 1.11 1.56 ± 1.18 1.29 ± 1.13 <.001
 Education <.001
  No Education 230 (32.67) 2111 (28.24) 1810 (23.49) 1958 (26.91) 6113 (26.07)
   < High school 383 (54.40) 4075 (54.51) 4289 (55.67) 4158 (55.02) 12,907 (55.05)
  High school 71 (10.09) 954 (12.82) 1203 (15.67) 1056 (14.04) 3284 (14.07)
   > High school 20 (2.84) 330 (4.43) 401 (5.22) 382 (5.08) 1133 (4.85)
 Smoke <.001
  Non-smoker 233 (33.10) 3117 (41.89) 3762 (48.99) 4136 (55.01) 11,248 (48.19)
  Past-smoker 283 (40.20) 3163 (42.51) 3290 (42.84) 2877 (38.26) 9613 (41.18)
  Current-smoker 188 (26.70) 1161 (15.60) 627 (8.17) 506 (6.73) 2482 (10.63)
 Exercise <.001
  No 262 (37.22) 2031 (27.29) 2069 (26.94) 3330 (44.29) 7692 (32.95)
  Yes 442 (62.78) 5410 (72.71) 5610 (73.06) 4189 (55.71) 15,651 (67.05)
 Marital status <.001
  Separated, widowed or single 408 (57.95) 3523 (47.35) 3222 (41.96) 3799 (50.53) 10,952 (46.92)
  Married or living with 296 (42.05) 3918 (52.65) 4457 (58.04) 3720 (49.47) 12,391 (53.08)
 Weight status <.001
  No changes 663 (94.18) 7024 (94.40) 7307 (95.16) 7160 (95.23) 22,154 (94.91)
  Lost 41 (5.82) 417 (5.60) 372 (4.84) 359 (4.77) 1189 (5.09)
 BADL 96.79 ± 8.23 98.23 ± 5.68 98.48 ± 4.68 93.09 ± 16.22 96.61 ± 10.50 <.001
 IADL 1.35 ± 1.81 0.82 ± 1.43 0.57 ± 1.18 1.19 ± 1.86 0.87 ± 1.55 <.001
 MMSE 19.99 ± 8.90 22.90 ± 7.68 24.57 ± 6.55 22.11 ± 8.49 23.11 ± 7.73 <.001

BADL: Basic activities of daily living. IADL: Instrumental activities of daily living. MMSE: Mini-mental state Examination