Table 4

Odds ratios (OR) and 95% confidence intervals (CIs) for the association between nature exposure and antihypertensive medication use

Antihypertensive medication use*
Model 1†Model 2‡Model 3§
OR95% CIOR95% CIOR95% CI
Amount of residential green space¶ (n=6031)1.010.95 to 1.070.990.94 to 1.060.990.93 to 1.05
Frequency of green space visits (n=5928)
Never/<1 time per weekrefrefrefrefrefref
1–2 times/week0.830.69 to 1.000.840.70 to 1.020.840.69 to 1.02
3–4 times/week0.630.52 to 0.760.640.53 to 0.780.640.52 to 0.78
≥5 times/week0.600.49 to 0.740.600.48 to 0.740.590.48 to 0.74
Green view from home (n=5982)
Norefrefrefrefrefref
Yes, I look at it seldom/occasionally1.070.89 to 1.301.080.89 to 1.311.070.88 to 1.30
Yes, I look at it often0.940.79 to 1.120.950.80 to 1.140.940.79 to 1.13
Amount of residential blue space (n=6031)
0%refrefrefrefrefref
>0%–10%1.020.88 to 1.191.030.89 to 1.191.030.88 to 1.19
>10%0.930.78 to 1.121.000.82 to 1.210.970.80 to 1.19
Blue view from home (n=5993)
Norefrefrefrefrefref
Yes, I look at it seldom/occasionally0.830.59 to 1.170.860.61 to 1.210.850.60 to 1.21
Yes, I look at it often0.830.66 to 1.050.880.69 to 1.120.860.68 to 1.10
  • *Based on the question ’When was the last time you used the following medication?’ Within the last week/1–4 weeks ago/1–12 months ago=YES; never/more than a year ago=NO.

  • †Model 1 (crude) adjusted for age and sex.

  • ‡Model 2 adjusted for age, sex, marital status, education, employment status, annual household income, smoking, alcohol use, physical activity at work, using recreational property during warm season and area-level annual mean income.

  • §Model 3 (main) adjusted for age, sex, marital status, education, employment status, annual household income, smoking, alcohol use, physical activity at work, using recreational property during warm season, area-level annual mean income, road traffic noise and NO2 from road traffic.

  • ¶Within a 1 km radius around the respondent’s home, calculated for 10% increase.