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Table 7 Effect size of acute and chronic hepatic iron levels

From: Salivary proline-rich protein may reduce tannin-iron chelation: a systematic narrative review

Study Treatment Effect size (d) Lower CI (95%) Upper CI (95%)
[70] Acute gavage 0.17 −0.96 1.31
Chronic Gavage −0.20 −1.33 0.94
Acute Powder −0.22 −1.36 0.91
Chronic Powder −0.40 −1.55 0.74
[47] 5% tea challenge −0.34 −1.48 0.80
5% tea chronic 2.87a 1.26 4.48
5% tea + gelatin challenge 0.50 −0.64 1.65
5% tea + gelatin chronic 2.39a 0.91 3.87
Total (CI % hepatic iron) 0.57 −0.64 1.84
Total (CI % chronic hepatic iron) 1.16 −0.18 2.51
Total (CI % acute hepatic iron) 0.03 −1.11 1.17
  1. a p < 0.05 (95% CI)