Table 4.
Unadjusted and covariate-adjusted differences from lowest Street Smart Walk Score quintile in log(BMI), participants aged 18–79, overall and by age group (n=6167)
| Age group | Quintile (Street Smart Walk Score range) | Unadjusted difference in log(BMI) (95% CI) | Adjusted* difference in log(BMI) (95% CI) | Mean predicted BMI (95% CI) | N for adjusted analysis |
| 18 to 79 | Q1 (0–23) | REF | REF† | 27.7 (26.8 to 28.6) | 1265 |
| Q2 (24–40) | −0.014 (−0.037 to 0.010) | −0.002 (−0.025 to 0.021)† | 27.5 (26.6 to 28.5) | 1101 | |
| Q3 (41–58) | −0.015 (−0.043 to 0.014) | −0.004 (−0.030 to 0.022)† | 27.4 (26.4 to 28.4) | 1276 | |
| Q4 (59–79) | −0.025 (−0.055 to 0.006) | −0.002 (−0.027 to 0.024)† | 27.3 (26.2 to 28.3) | 1311 | |
| Q5 (80–100) | − 0.053 ( − 0.084 to -0.023) | −0.019 (−0.047 to 0.009)† | 26.6 (25.6 to 27.6) | 1214 | |
| 18 to 29 | Q1 (0–23) | REF | REF | 25.9 (24.3 to 27.5) | 196 |
| Q2 (24–40) | −0.025 (−0.087 to 0.037) | −0.027 (−0.093 to 0.040) | 25.2 (23.2 to 27.3) | 197 | |
| Q3 (41–58) | −0.028 (−0.098 to 0.043) | −0.033 (−0.101 to 0.035) | 25.1 (23.0 to 27.4) | 232 | |
| Q4 (59–79) | −0.039 (−0.100 to 0.023) | −0.025 (−0.083 to 0.034) | 25.2 (23.2 to 27.3) | 275 | |
| Q5 (80–100) | − 0.052 ( − 0.096 to -0.008) | −0.035 (−0.083 to 0.013) | 24.8 (23.1 to 26.8) | 229 | |
| 30 to 44 | Q1 (0–23) | REF | REF | 27.2 (25.6 to 29.0) | 454 |
| Q2 (24–40) | 0.013 (−0.045 to 0.071) | 0.013 (−0.039 to 0.064) | 27.7 (26.4 to 29.0) | 368 | |
| Q3 (41–58) | −0.004 (−0.061 to 0.052) | 0.015 (−0.037 to 0.068) | 27.5 (26.2 to 29.0) | 377 | |
| Q4 (59–79) | −0.015 (−0.071 to 0.041) | 0.010 (−0.055 to 0.076) | 27.2 (25.6 to 29.0) | 353 | |
| Q5 (80–100) | −0.052 (−0.110 to 0.006) | −0.017 (−0.080 to 0.046) | 26.3 (24.7 to 27.9) | 371 | |
| 45 to 64 | Q1 (0–23) | REF | REF | 28.4 (27.2 to 29.6) | 403 |
| Q2 (24–40) | −0.017 (−0.047 to 0.013) | −0.001 (−0.035 to 0.032) | 28.3 (27.1 to 29.7) | 345 | |
| Q3 (41–58) | −0.020 (−0.069 to 0.029) | −0.007 (−0.052 to 0.038) | 28.0 (26.5 to 29.7) | 431 | |
| Q4 (59–79) | −0.017 (−0.060 to 0.025) | 0.004 (−0.034 to 0.041) | 28.2 (26.7 to 29.8) | 405 | |
| Q5 (80–100) | −0.041 (−0.088 to 0.005) | −0.021 (−0.064 to 0.022) | 27.3 (25.7 to 28.9) | 409 | |
| 65 to 79 | Q1 (0–23) | REF | REF | 28.6 (27.3 to 30.0) | 212 |
| Q2 (24–40) | −0.021 (−0.066 to 0.025) | −0.005 (−0.049 to 0.038) | 28.2 (26.8 to 29.7) | 191 | |
| Q3 (41–58) | −0.011 (−0.047 to 0.026) | 0.007 (−0.026 to 0.039) | 28.6 (27.3 to 29.9) | 236 | |
| Q4 (59–79) | −0.029 (−0.066 to 0.009) | −0.016 (−0.055 to 0.024) | 27.9 (26.6 to 29.3) | 278 | |
| Q5 (80–100) | −0.040 (−0.086 to 0.006) | −0.012 (−0.062 to 0.039) | 27.6 (26.1 to 29.3) | 205 |
Statistically significant estimates at p<0.05 in bold. Q1=1st Walk Score quintile, Q2=2nd Walk Score quintile, Q3=3rd Walk Score quintile, Q4=4th Walk Score quintile, Q5=5th Walk Score quintile.
*Estimates adjusted for sex, cultural/racial origin, immigration to Canada in the past 10 years, household income quintile, fruit/vegetable consumption, leisure physical activity, marital status, smoking status and survey cycle.
†Analyses of all respondents also adjusted for age category. Walk Score values from 2014. Remaining variables from 2007 to 2011 Canadian Health Measures Survey.
BMI, body mass index.