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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