Table 3 Univariate meta-regression for restenosis
Trial feature | Classification | Number of trials | Beta coefficient | 95% CI | P value |
|---|---|---|---|---|---|
Dichotomous outcomes | Â | Â | Â | Â | Â |
Intervention | PTA or Stent | PTA: 2 Stent: 18 | 0.262 | (-0.23, 0.76) | 0.281 |
Smoking | Proportion of the population |  ≥ 30%: 7  < 30%: 12 | -0.113 | (-0.49, 0.26) | 0.540 |
History of hypertension | Proportion of the population |  ≥ 50%: 16  < 50%: 4 | -0.004 | (-0.38, 0.37) | 0.982 |
History of hyperlipemia | Proportion of the population |  ≥ 50%: 16  < 50%: 3 | 0.029 | (-0.40, 0.46) | 0.890 |
Publication time | Date of publication of each study | After 2010: 16 Before 2010: 4 | -0.480 | (-0.41, 0.31) | 0.781 |