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Table 4 the pain index at week 4, 8, 12

From: Effectiveness of Boswellia and Boswellia extract for osteoarthritis patients: a systematic review and meta-analysis

Secondary outcomes Overall effect Heterogeneity test Figure Reference
MD 95%CI P Tau2 I2 (%) P Statistical method Studies (N) Sample size (N)
VAS at 4 weeks −6.38 −10.20, −2.57 0.001 18.94 95% <0.00001 Random inverse variance 4 238 Fig S1 [24, 26, 33, 35]
VAS at 8 weeks −5.44 −8.8, −2.09 0.001 14.11 95 <0.00001 Random inverse variance 4 299 Fig S2 [24, 26, 36, 37]
VAS at 12 weeks −19.37 −23.90, − 14.85 <0.00001 43 0.15 Fixed inverse variance 2 127 Fig S3 [24, 26]
WOMAC pain at 4 weeks −6.91 − 11.08, −2.74 0.001 15.85 85 <0.0001 Random inverse variance 3 186 Fig S4 [24, 26, 33]
WOMAC pain at 8 weeks −11.05 −14.94, −7.17 <0.00001 10.57 79 0.003 Random inverse variance 2 127 Fig S5 [24, 26]
WOMAC pain at 12 weeks −12.37 −19.47, −5.26 0.0006 58.02 97 <0.00001 Random inverse variance 3 262 Fig S6 [24, 26, 34]