Table 10 Meta-regression analysis for difference in DBP between smokers and non-smokers
Covariate | N studies | Coefficient (95% CI) | p value |
|---|---|---|---|
Mean study age | 8 | 0.08 (−0.02, 0.17) | 0.102 |
Study age criteria (under 22 or over 18) | 8 | 3.47 (0.02, 6.73) | 0.041 |
Type I or Type II diabetes | 8 | 1.26 (−3.36, 5.89) | 0.529 |
Male (percent) | 8 | 0.11 (0.02, 0.20) | 0.027 |
Study design | 8 | 0.57 (−6.55, 7.71) | 0.850 |
Duration smoked | 3 | 0.38 (−3.33, 4.09) | 0.410 |