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Table 3 Summary table with pooled results

From: Tissue Doppler imaging for diagnosis of coronary artery disease: a systematic review and meta-analysis

Outcome Primary analysis* Sensitivity analysis of studies using angiography to diagnose or exclude CAD*
N of studies N of patients Pooled Results – MD(95% CI); I2 N of studies N of patients Pooled Results – MD(95% CI); I2
Pre-stress
Maximum systolic velocity 5 200 −0.66 (−0.98 to −0.34); 46% 3 132 −0.54 (−0.91 to −0.17); 44%
Maximum early diatolic velocity 6 314 −0.94 (−2.02 to 0.14); 88% 4 246 −0.89 (−2.52 to 0.74); 89%
Maximum late diastolic velocity 6 314 −0.79 (−1.72 to 0.13); 77% 4 246 −0.13 (−0.61 to 0.35); 0%
Post-stress
Maximum systolic velocity 3 164 −2.64 (−5.47 to 0.19); 90% 2 133 −3.66 (−7.23 to −0.10); 87%
Maximum early diatolic velocity 3 173 −1.91 (−2.74 to −1.09); 0% 2 142 −1.45 (−2.53 to −0.38); 0%
Maximum late diastolic velocity 3 173 −1.57 (−2.95 to −0.18); 66% 2 142 −2.30 (−3.32 to −1.28); 0%
  1. Abbreviations: CI confidence interval, MD mean difference.
  2. * Fixed-effects model when I2 < 50% and random-effects model when I2 ≥ 50%.