The Effect of Park and Urban Environments on Coronary Artery Disease Patients: A Randomized Trial

Table 1

Baseline characteristics of the urban street and park environment study groups (data shown as mean values ± standard deviation or numbers and percentages).

Baseline characteristics	Urban street mean ± SD	Park environment mean ± SD
Men	6 (60%)	7 (70%)	0.500
Age, years	66.0 ± 12.5	58.5 ± 12.2	0.162
Body mass index, kg/m^2	27.9 ± 1.8	27.9 ± 4.9	0.264
CAD anamnesis, years	9.3 ± 8.8	8.8 ± 11.7	0.353
Duration after the last CAD hospitalization, years	1.16 ± 0.6	0.90 ± 0.4	0.176
NO2 in living environment, µg/m^3	18.5 ± 5.4	20.1 ± 5.3	0.370
Residence proximity to park, m	321.7 ± 251	490 ± 356	0.114
NO2 during walking, µg/m^3	24.15 ± 1.69	20.31 ± 0.93	0.026
PM2.5 during walking, µg/m^3	24.64 ± 0.97	18.23 ± 0.85	0.001
Noise during walking, dBA	65.20 ± 1.31	46.17 ± 0.78	0.000

Exact one-tailed value of Mann-Whitney test.