Table 2.

Comparison of random effects and fixed effect findings for primary outcomes

ComparisonRandom effects (95% CI)P-valueFixed effect (95% CI)P-value
Systolic differences−6.96 (−9.22 to −4.70)<0.001−5.42 (−5.81 to −5.04)<0.001
  Low risk−4.61 (−7.28 to −1.93)<0.001−2.52 (−3.04 to −2.00)<0.001
  High risk−8.36 (−10.40 to −6.32)<0.001−8.78 (−9.34 to −8.22)<0.001
0.030a<0.001a
Diastolic differences−3.82 (−5.43 to −2.22)<0.001−2.79 (−3.03 to −2.55)<0.001
  Low risk−1.68 (−3.22 to −0.14)<0.001−0.69 (−1.02 to −0.36)<0.001
  High risk−4.96 (−6.48 to −3.43)<0.001−5.18 (−5.54 to −4.83)<0.001
0.003a<0.001a
  • a P-value for differences between high and low risk of bias groups.