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Table 3 Three-way interaction modela of age, sex, and walkability indexb on moderate-to-vigorous physical activity (minutes/week)c

From: One size doesn’t fit all: cross-sectional associations between neighborhood walkability, crime and physical activity depends on age and sex of residents

 

β (SE)

P

Age (years)

−0.01 (0.01)

0.34

Male

2.72 (0.75)

<0.01

Age 65+ years

1.60 (1.32)

0.23

Male * age 65+ years

−9.52 (2.30)

<0.01

Male * walkability index

−0.24 (0.09)

<0.01

Age 65+ years * walkability index

−0.22 (0.16)

0.23

Male * age 65+ years * walkability index

1.04 (0.28)

<0.01

  1. Bold indicates statistical significance at p < 0.05
  2. a Zero-inflated negative binomial regression with “any limit walking 1 block”, “age”, and “male” in the inflate statement. Estimates are not presented but all were statistically significant at p < 0.001. Controlling for neighborhood crime, household annual income (per $1000), any limit walking 1 block, education some college/bachelors versus less than college, married or living with partner versus living alone, and car owner or access to a car
  3. b The walkability index [48] was composed of the following items: traffic signs at the intersection (4 points), pedestrian crossings (2 points), sidewalks (10 points), lighting (2 points), transit (2 points), and missed use (2 points). Items were summed for each street segment and the average of the summed items across the street segments constituted the walkability index. The index ranges from 0 to 22
  4. c Average time moderately-to-vigorously physically active based on 4–7 days of accelerometry data and a bout of at least 10 min of activity above the 100 mg threshold [41], where at least 80% of the bout was above the threshold of 100 mg