TABLE 2—
Associations Between Cycling and Survey Period, Exposure to Docking Stations, and Their Interactions Before (n = 1803), and at the End of the First (n = 2223) and Second (n = 2393) Seasons of the BIXI Public Bicycle Share Program: Montreal, Quebec, 2009–2010
| Variable | Step 1, OR (95% CI) | Step 2, OR (95% CI) | Step 3, OR (95% CI) | Step 4, OR (95% CI)a | Step 5, OR (95% CI)b |
| Cycling | |||||
| Survey period | |||||
| Pre (Ref) | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 |
| Season 1 | 0.56* (0.47, 0.67) | 0.59* (0.49, 0.71) | 0.47* (0.36, 0.61) | 1.04 (0.61, 1.77) | 1.07 (0.62, 1.86) |
| Season 2 | 0.40* (0.33, 0.49) | 0.42* (0.35, 0.52) | 0.23* (0.17, 0.31) | 0.65 (0.33, 1.27) | 0.66 (0.33, 1.31) |
| Exposure to docking stations | |||||
| Not exposed (Ref) | 1.00 | 1.00 | 1.00 | 1.00 | |
| Exposed | 2.62* (2.24, 3.07) | 1.69* (1.31, 2.16) | 1.69* (1.32, 2.18) | 1.35* (1.02, 1.78) | |
| Survey × exposure | |||||
| Pre × not exposed (Ref) | 1.00 | 1.00 | 1.00 | ||
| Season 1 × exposed | 1.57* (1.09, 2.27) | 1.41 (0.96, 2.01) | 1.47 (0.99, 2.19) | ||
| Season 2 × exposed | 2.97* (1.97, 4.46) | 2.55* (1.68, 3.88) | 2.86* (1.85, 4.42) | ||
| Utilitarian cycling | |||||
| Survey period | |||||
| Pre (Ref) | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 |
| Season 1 | 0.84 (0.66, 1.06) | 0.92 (0.72, 1.17) | 1.07 (0.72, 1.60) | 2.34* (1.17, 4.67) | 2.52* (1.24, 5.12) |
| Season 2 | 0.72* (0.56, 0.92) | 0.79 (0.61, 1.01) | 0.59* (0.38, 0.93) | 1.63 (0.69, 3.40) | 1.72 (0.71, 4.13) |
| Exposure to docking stations | |||||
| Not exposed (Ref) | 1.00 | 1.00 | 1.00 | 1.00 | |
| Exposed | 3.73* (3.03, 4.59) | 3.63* (2.48, 5.29) | 3.58* (2.45, 5.22) | 2.59* (1.72, 3.91) | |
| Survey × exposure | |||||
| Pre × not exposed (Ref) | 1.00 | 1.00 | 1.00 | ||
| Season 1 × exposed | 0.76 (0.46, 1.26) | 0.74 (0.44, 1.25) | 0.79 (0.46, 1.35) | ||
| Season 2 × exposed | 1.52 (0.89, 2.60) | 1.45 (0.83, 2.52) | 1.66 (0.94, 2.95) | ||
| Recreational cycling | |||||
| Survey period | |||||
| Pre (Ref) | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 |
| Season 1 | 0.42* (0.33, 0.54) | 0.44* (0.34, 0.56) | 0.29* (0.21, 0.42) | 0.71 (0.34, 1.49) | 0.76 (0.36, 1.62) |
| Season 2 | 0.24* (0.18, 0.32) | 0.25* (0.19, 0.33) | 0.14* (0.09, 0.21) | 0.43 (0.17, 1.09) | 0.46 (0.18, 1.21) |
| Exposure to docking stations | |||||
| Not exposed (Ref) | 1.00 | 1.00 | 1.00 | 1.00 | |
| Exposed | 1.75* (1.87, 2.67) | 1.08 (0.80, 1.46) | 1.11 (0.82, 1.50) | 0.98 (0.69, 1.38) | |
| Survey × exposure | |||||
| Pre × not exposed (Ref) | 1.00 | 1.00 | 1.00 | ||
| Season 1 × exposed | 2.24* (1.36, 3.59) | 1.81* (1.10, 2.98) | 1.87* (1.12, 3.13) | ||
| Season 2 × exposed | 3.26* (1.83, 5.80) | 2.55* (1.41, 4.59) | 2.73* (1.49, 4.99) | ||
Note. BIXI = BIcycle-taXI; CI = confidence interval; OR = odds ratio. With control for built environment and sociodemographic characteristics.
a
Models with control for mean weekly temperature, and days of precipitation.
b
Models with control for mean weekly temperature, days of precipitation, density of destinations, street connectivity, age, gender, education, employment, body mass index (weight in kilograms divided by the square of height in meters), and self-rated health.
*P < .05.