Skip to main content
. 2018 Oct;166:628–637. doi: 10.1016/j.envres.2018.06.030

Table 4.

Summary meta-analysis results table: mean difference (MD) between highest and lowest greenspace exposure groups.

Outcome N (participants) Effect MD (95% CI) Heterogeneity I2 P-value
Salivary cortisol 7 (954) − 0.05 (−0.07, −0.04) 0% P < 0.001
Heart rate 10 (1058) − 2.57 (−4.30, −0.83) 78% P0.004
HDL cholesterol 2 (3474) − 0.03 (−0.05, <−0.01) 0% p = 0.02
Diastolic blood pressure 12 (9695) − 1.97 (−3.45, −0.49) 82% p = 0.009
Systolic blood pressure 13 (9791) − 1.50 (−3.43, 0.44) 78% p = 0.13
Change in HF power of HRV 7 (826) 91.87 (50.92, 132.82)) 49% p < 0.001
LF/(LF+HF) 6 (266) − 0.06 (−0.08, −0.03) 0% p < 0.001
HbA1c 2 (174) − 0.77 (−1.86, 0.32) 54% P = 0.16
Fasting blood glucose 2 (3474) − 0.01 (−0.08, 0.07) 0% p = 0.84
Total cholesterol 2 (3474) 0.03 (−0,05, 0.10) 0% p = 0.48
LDL cholesterol 2 (3474) 0.04 (−0.03, 0.11) 0% p = 0.23
Triglycerides 2 (3474) 0.06 (−0.01, 0.12) 0% p = 0.07
Gestational age 3 (22911) < −0.01 (−0.05, 0.05) 0% P = 0.94