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Table 3 Subgroup analysis of the meta-analysis

From: Impact of platelet-rich fibrin on mandibular third molar surgery recovery: a systematic review and meta-analysis

OutcomesSubgroupNumber of trialsEffect (95% CI)Estimate for overall effectHeterogeneity
PainTotal(1 day)4−0.38(−1.01,0.24)P = 0.231I2 = 82.1%, P = 0.001
VAS(1 day)3−0.59 (−1.45, 0.27)P = 0.181I2 = 86.1%, P = 0.001
VAS and VRS(1 day)10.16 (− 0.35, 0.66)P = 0.545 
Total(3 day)6−0.53(−1.02,0.05)P = 0.032I2 = 75.7%, P = 0.001
VAS(3 day)5−0.67 (−1.26, − 0.08)P = 0.026I2 = 78.6%, P = 0.001
VAS and VRS (3 day)1−0.01 (− 0.51, 0.50)P = 0.975 
Total(7 day)4−1.05 (−2.14, 0.03)P = 0.057I2 = 90.3%, P < 0.001
VAS(7 day)3− 1.62 (−3.63, 0.39)P = 0.113I2 = 93.2%, P < 0.001
VAS and VRS (7 day)10.07 (− 0.44, 0.58)P = 0.786 
TrismusTotal4−0.19 (− 0.88, 0.50)P = 0.596I2 = 73.1%, P = 0.011
Ustun method3−0.46 (− 0.99, 0.07)P = 0.088I2 = 39.7%, P = 0.190
Other10.77 (0.04, 1.50)P = 0.039 
  1. VAS visual analogue scale, VRS verbal scale