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Table 1 Mean BMI and distribution of observations by travel mode for categorical confounders (N = 4625)

From: Household income, active travel, and their interacting impact on body mass index in a sample of urban Canadians: a Bayesian spatial analysis

  Mean BMI (SD)a % Observations by travel mode Total N
Vehicular only Mixed Active only
Total sample with BMI data 26.64 (5.13) 3587 (77.6%) 544 (11.8%) 494 (10.6%) 4625 (100%)
Transportation mode   
 Vehicular transportation only 26.95 (5.16)     3587 (78.0%)
 Mixed vehicular/active 25.79 (4.85)     544 (11.3%)
 Active transportation only 25.32 (4.93)     494 (10.7%)
Individual variables
 Age
  19–34 years 25.19 (4.94) 68.2% 15.0% 16.8% 1238 (25.9%)
  35–49 years 26.84 (5.13) 80.6% 10.7% 8.7% 1111 (24.0%)
  50–64 years 27.23 (5.07) 80.8% 11.1% 8.1% 1474 (31.9%)
  65 + years 27.54 (5.07) 81.8% 9.5% 8.7% 802 (17.3%)
 Sex
  Male 27.4 (4.62) 78.4% 10.7% 10.9% 2247 (48.6%)
  Female 25.92 (5.48) 76.8% 12.8% 10.4% 2378 (51.4%)
 Physical activity
  < 3 days in prior week 27.5 (5.72) 85.8% 7.6% 6.6% 1759 (38%)
  ≥ 3 days in prior week 26.12 (4.66) 72.5% 14.3% 13.2% 2866 (62%)
Household variables
 Household income
  < $25,000 26.7 (6.02) 47.2% 17.9% 34.9% 195 (4.2%)
  $25,000–$49,999 27.28 (5.45) 75% 9.7% 15.3% 639 (13.8%)
  $50,000–$74,999 27.07 (5.33) 79.4% 10.4% 10.2% 943 (20.4%)
  ≥ $75,000 26.35 (4.9) 79.6% 12.3% 8.1% 2848 (61.6%)
 Young children
  No children under 5 26.65 (5.14) 77.3% 11.8% 10.9% 4111 (88.9%)
  Children under 5 in home 26.56 (5.05) 79.6% 11.3% 9.1% 514 (11.1%)
Neighbourhood variable
 Deprivation index
  Quintile 1 (most privileged) 26.27 (4.79) 84.8% 9.3% 5.9% 1345 (29.1%)
  Quintile 2 26.22 (4.79) 79% 12.1% 8.9% 1048 (22.7%)
  Quintile 3 26.59 (5.09) 72.6% 13% 14.4% 851 (18.4%)
  Quintile 4 27.1 (5.1) 76.4% 10.2% 13.4% 675 (14.6%)
  Quintile 5 (least privileged) 27.59 (6.1) 68.5% 15.9% 15.6% 706 (15.3%)
  1. aSD is standard deviation