Table 2.
Unadjusted and adjusted differences from lowest Street Smart Walk Score quintile in BMI z-score, participants aged 6–17, overall and by age group (n=3098)
| Age group | Quintile (Street Smart Walk Score range) | Unadjusted difference in BMI z-score (95% CI) | Adjusted* difference in BMI z-score (95% CI) | N for adjusted analysis |
| 6 to 17 | Q1 (0–23) | REF | REF† | 762 |
| Q2 (24–40) | −0.115 (−0.340 to 0.110) | −0.049 (−0.250 to 0.153)† | 656 | |
| Q3 (41–58) | −0.117 (−0.299 to 0.065) | −0.099 (−0.275 to 0.078)† | 639 | |
| Q4 (59–79) | −0.199 (−0.434 to 0.035) | −0.168 (−0.402 to 0.066)† | 566 | |
| Q5 (80–100) | −0.146 (−0.439 to 0.148) | −0.129 (−0.410 to 0.153)† | 475 | |
| 6 to 11 | Q1 (0–23) | REF | REF | 447 |
| Q2 (24–40) | −0.257 (−0.530 to 0.016) | −0.191 (−0.433 to 0.051) | 364 | |
| Q3 (41–58) | − 0.250 ( − 0.474 to -0.027) | −0.174 (−0.390 to 0.043) | 350 | |
| Q4 (59–79) | −0.107 (−0.427 to 0.212) | −0.096 (−0.371 to 0.180) | 326 | |
| Q5 (80–100) | −0.143 (−0.522 to 0.236) | −0.086 (−0.381 to 0.209) | 272 | |
| 12 to 17 | Q1 (0–23) | REF | REF | 315 |
| Q2 (24–40) | 0.034 (−0.240 to 0.309) | 0.112 (−0.156 to 0.379) | 292 | |
| Q3 (41–58) | 0.027 (−0.233 to 0.287) | 0.030 (−0.245 to 0.304) | 289 | |
| Q4 (59–79) | −0.240 (−0.548 to 0.069) | −0.158 (−0.487 to 0.170) | 240 | |
| Q5 (80–100) | −0.109 (−0.467 to 0.250) | −0.112 (−0.499 to 0.275) | 203 |
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 and survey cycle.
†Analyses also adjusted for age category. Walk Score values from 2014. Remaining variables from 2007 to 2011 Canadian Health Measures Survey.
BMI, body mass index.