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Table 3 Results of subgroup-analysis for effect of resistant starch on CRP and TNF-α and IL-6 levels

From: Effects of resistant starch interventions on circulating inflammatory biomarkers: a systematic review and meta-analysis of randomized controlled trials

 No. of effect sizesRR (95% CI)P within1I2 (%)P between2
Subgroup analyses for CRP and resistant starch
Duration of follow up    0.619
 Less than 8 weeks30.03 (−0.34, 0.4)0.87338.4 
 8 weeks and more6− 0.21 (−1.06, 0.63)0.99889.7 
Quality score3    0.432
 Scores≤median(19)30.86 (− 1.63, 3.35)0.49888.3 
 Scores>median(19)6−0.61 (− 1.93, 0.71)0.36489.3 
Subgroup analyses for TNF-α and resistant starch
Duration of follow up    0.804
 More than 8 weeks4−1.86 (−3.63, −0.09)0.01587.6 
 8 weeks and less4−2.76 (−4.99, −0.54)0.03997 
Quality score3    0.562
 Scores≤median(19)2−7.94 (−14.47, − 1.42)0.01776.8 
 Scores>median(19)6−1.38 (−2.6, − 0.16)0.02694.8 
Subgroup analyses for IL-6 and dairy products
Duration of follow up    0.001
 More than 8 weeks2−0.48 (−1.61, 0.66)0.16362.8 
 8 weeks and less5−1.40 (−2.22, − 0.58)0.01295.7 
Quality score3    0.001
 Scores≤median(19)4−1.62 (−3.35, 0.12)0.06891.1 
 Scores>median(19)3−0.97 (−1.81, −0.13)0.02499.5