Table 5 Odds ratios and 95% confidence intervals (CIs) for vigorous activity among women in the Stanford Heart Disease Prevention Program
Vigorous activity
Baseline model: odds ratio (95% CI)Full model: odds ratio (95% CI)GIS model: odds ratio (95% CI)
Age (per year)0.95*** (0.94 to 0.97)0.95*** (0.94 to 0.97)
Race/ethnicity
    Hispanic1.34 (0.81 to 2.23)1.33 (0.80 to 2.21)
    Other race/ethnicity1.28 (0.67 to 2.43)1.27 (0.67 to 2.41)
    White, non-Hispanic1.001.00
Marital status
    Never married1.14 (0.72 to 1.79)1.14 (0.73 to 1.80)
    Previously married1.22 (0.86 to 1.74)1.22 (0.86 to 1.74)
    Married1.001.00
Income (per unit increase, range 1–4)1.14 (0.98 to 1.33)1.14 (0.98 to 1.33)
Education (per unit increase, range 1–4)1.63*** (1.34 to 1.98)1.64*** (1.24 to 11.29)
Treatment vs. control city1.09 (0.75 to 1.58)1.10 (0.76 to 1.59)
Survey
    1 (1979–80)1.00
    4 (1985–86)1.07 (0.68 to 1.70)1.10 (0.69 to 1.74)
    5 (1989–90)1.130.72 to 1.78)1.16 (0.74 to 1.83)
Neighbourhood SES
    Lower1.01 (0.60, 1.68)1.18 (0.67 to 2.06)1.21 (0.69 to 2.12)
    Moderate1.001.001.00
    Higher1.53* (1.04, 2.26)1.45 (0.97 to 2.17)1.49 (0.99 to 2.23)
Gyms per square mile0.92 (0.76 to 1.10)
  • *p<0.05; **p<0.01; ***p<0.001.

  • Note. Although models were run for each of the variables measuring the availability of PA resources (parks and gyms), only gyms per square mile is presented because of space constraints.