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Table 1 Demographic characteristics of the 1,270 respondents.

From: Performance of the international physical activity questionnaire (short form) in subgroups of the Hong Kong chinese population

   n Age mean (S.D.) Male n (row %) Full-time worker n (row %) Tertiary Education n (row %) Weight (kg) mean (S.D.) Height (cm) mean (S.D.) BMI mean (S.D.) VFL mean (S.D.)
Total   1270 42.9 (14.4) 585 (46.1%) 745 (58.7%) 299 (24.3%) 61.6 (12.4) 161.8 (8.7) 23.5 (3.9) 7.5 (4.6)
Sex
  Male 585 43.5 (15.3) N/A 376 (64.3%) 153 (26.9%) 64.9 (12.5) 165.5 (7.9) 23.6 (3.8) 8.7 (4.9)
  Female 685 42.4 (13.5) N/A 369 (53.9%) 146 (22.0%) 58.8 (11.7) 158.5 (8.1) 23.4 (4.0) 6.5 (4.2)
Age, years
  ≤29 232 21.7 (4.3) 110 (47.4%) 98 (42.2%) 85 (38.0%) 58.9 (13.9) 164.2 (9.4) 21.7 (4.0) 4.4 (3.5)
  30-49 629 40.3 (5.6) 273 (43.4%) 472 (75.0%) 172 (28.0%) 62.9 (12.6) 162.3 (8.8) 23.8 (3.9) 7.3 (4.4)
  ≥ 50 409 59.0 (7.7) 202 (49.4%) 175 (57.2%) 42 (10.7%) 61.2 (11.0) 159.5 (7.8) 24.0 (3.6) 9.2 (4.7)
Full-time worker
  Yes - high PD 105 44.5 (9.9) 61 (58.1%) N/A 7 (6.9%) 65.3 (12.5) 163.7 (8.4) 24.3 (3.7) 8.7 (5.0)
  Yes - low PD 630 41.1 (10.3) 310 (49.2%) N/A 211 (34.5%) 62.5 (12.4) 163.1 (8.7) 23.4 (3.7) 7.3 (4.5)
  Not full-time 525 54.1 (8.8) 303 (46.0%) 350 (53.1%) 87 (13.6%) 62.4 (11.5) 160.2 (8.3) 24.2 (3.7) 8.9 (4.7)
Tertiary education
  Yes 299 37.2 (12.0) 153 (51.2%) 224 (74.9%) N/A 62.2 (12.8) 163.8 (9.0) 23.1 (3.7) 6.8 (4.7)
  No 933 44.7 (14.5) 416 (44.6%) 499 (53.5%) N/A 61.4 (12.1) 160.9 (8.7) 23.7 (3.9) 7.7 (4.6)
BMI
  Overweight (≥ 25) 399 46.1 (12.4) 201 (50.4%) 317 (60.7%) 84 (21.8%) 73.9 (10.7) 162.4 (9.1) 28.0 (2.7) 12.3 (3.9)
  Normal(< 25) 868 41.2 (15.0) 382 (44.0%) 501 (57.7%) 214 (25.4%) 55.9 (8.4) 161.5 (8.5) 21.4 (2.3) 5.2 (2.9)
VFL, %
  Overweight (≥ 10) 347 49.9 (12.1) 219 (63.1%) 211 (60.8%) 75 (22.4%) 74.0 (10.5) 164.0 (8.8) 27.5 (3.1) 13.4 (3.2)
  Normal(< 10) 830 41.4 (12.9) 316 (38.1%) 515 (62.1%) 214 (26.6%) 56.7 (9.1) 160.6 (8.5) 22.0 (2.8) 5.0 (2.4)
  1. PD: physical demand, BMI: body mass index, VFL: visceral fat level