Table 4. Association of Minutes Per Week of 10-Minute Boutsa of Moderate-to-Vigorous Physical Activity With Environmental Variables Among Mexican Adults, Overall and by Buffer, Cuernavaca, Mexico, 2011.
| Variable | Regression Estimate (SE) [P Value] |
|||
|---|---|---|---|---|
| Unadjusted | Adjustedb | |||
| Neighborbood safety | ||||
| Safe | 0 | 0 | ||
| Unsafe | −5.00 (6.55) [.45] | −2.61 (7.38) [.73] | ||
| Park safety | ||||
| Safe | 0 | 0 | ||
| Unsafe | −10.60 (6.56) [.09] | −12.00 (7.01) [.05] | ||
| Distance to park | ||||
| Very close (<313 m) | 0 | 0 | ||
| Medium (313 to <771 m) | 5.17 (6.76) [.45] | 9.91 (7.00) [.17] | ||
| Far (771 to <1,357 m) | 4.92 (8.68) [.58] | 8.16 (7.72) [.30] | ||
| Very far (≥1,357 m) | 4.44 (10.18) [.67] | 8.24 (11.51) [.48] | ||
| No. of public bus routes per buffer | ||||
| 0 | 0 | 0 | ||
| 1 | 2.66 (0.26) [.80] | −1.59 (11.09) [.89] | ||
| 2–7 | −5.39 (8.13) [.51] | −4.51 (11.42) [.70] | ||
| ≥8 | −10.70 (11.29) [.35] | −6.95 (12.29) [.58] | ||
|
| ||||
| Variable |
By Bufferc
|
|||
|
500 m
|
1 km
|
|||
| Unadjusted | Adjustedb | Unadjusted | Adjustedb | |
|
| ||||
| Net residential density (no. of single family units/km2 of residential land use in buffer) | ||||
| Low (<1,583) | 0 | 0 | 0 | 0 |
| Medium (1,583 to <2,174) | −3.87(11.59) [.74] | −7.97 (12.00) [.51] | −21.28 (7.12) [.04] | −24.32 (6.24) [.03] |
| Medium-high (2,174 to <2,730) | −15.87 (7.72) [.17] | −22.87 (10.55) [.05] | −16.95 (12.80) [.15] | −23.34 (10.88) [.05] |
| High (≥2,730) | −10.46 (9.74) [.40] | −21.68 (9.32) [.04] | −1.55 (15.22) [.91] | −8.92 (10.30) [.50] |
| Proportion of commercial land use (km2 designated to commercial land use/km2 of buffer) | ||||
| Low (0%) | 0 | 0 | 0 | 0 |
| Medium (0% to <15%) | 3.20 (10.70 [.77] | −0.82 (10.50) [.94] | −0.91 (9.92) [.93] | 1.56 (9.75) [.87] |
| Medium-high (15% to <25%) | −4.12 (9.07) [.65] | −8.59 (9.48) [.37] | −7.46 (11.07) [.51] | −5.70 (10.84) [.60] |
| High (≥25%) | −32.64 (8.32) [<.001]d | −33.96 (8.28) [.001]d | −16.35 (10.79) [.14] | −20.31 (13.42) [.11] |
| Land-use mixd | ||||
| Low (<0.25) | 0 | 0 | 0 | 0 |
| Medium (0.25 to <0.40) | 0.73 (8.60) [.93] | −5.49 (9.06) [.55] | 2.93 (10.34) [.78] | 1.03 (11.17) [.93] |
| Medium-high (0.40 to <0.50) | −19.58 (14.46) [.19] | −20.65 (12.96) [.12] | −20.72 (8.57) [.02] | −22.33 (9.64) [.03] |
| High (≥0.50) | −16.44 (11.62) [.17] | −19.17 (11.63) [.11] | −12.42 (13.10) [.35] | −17.34 (8.27) [.05] |
| Connectivity (number of 3- and 4-way intersections/km2 of buffer) | ||||
| Low (<111) | 0 | 0 | 0 | 0. |
| Medium (111 to <135) | −8.79 (11.98) [.47] | −8.68 (10.15) [.40] | −6.58 (10.32) [.53] | −9.24 (10.63) [.39] |
| Medium-high (135 to <167) | −8.33 (17.49) [.64] | −11.54 (16.65) [.49] | −13.75 (9.10) [.14] | −18.33 (10.37) [.09] |
| High (≥167) | −7.95 (9.93) [.43] | −10.35 (10.63) [.34] | −5.95 (9.92) [.55] | −9.48 (6.91) [.12] |
| Walkability indexd | ||||
| Low (less than −45) | 0 | 0 | 0 | 0 |
| Medium (−45 to <15) | −9.84 (12.18) [.43] | −10.22 (11.47) [.38] | −16.79 (9.48) [.09] | −22.25 (10.22) [.04] |
| Medium-high (15 to <50) | −16.54 (12.23) [.19] | −18.31 (12.94) [.17] | −28.23 (9.31) [.01] | −34.21 (10.01) [<.001] |
| High (≥50) | −29.89 (11.96) [.02]d | −31.49 (12.93) [.02]d | −6.25 (12.47) [.62] | −12.65 (13.19) [.35] |
| No. of parks | ||||
| 0 | 0 | 0 | 0 | 0 |
| 1 | −11.96 (6.24) [.07] | −16.84 (8.19) [.03] | −0.02 (11.80) [.99] | 0.24 (12.38) [.98] |
| ≥2 | 25.91 (27.18) [.35] | 20.51 (26.16) [.44] | 1.15 (10.44) [.91] | −2.17 (11.13) [.85] |
a
Only activity recorded as moderate-to-vigorous bouts of at least 10 minutes; at least 80% of bout had to be moderate-to-vigorous activity (ie, no breaks of ≥2 minutes).
b
Adjusted models control for total accelerometer wear time, sex, age, individual socioeconomic status, education, marital status, motor vehicle ownership, and BMI status.
c
For these variables, 1-km and 500-m street-network buffers were generated around each participant’s household.
d
Significant linear trend (P < .05).