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Table 4 Combination of the chronic urticaria remission/improvement rates of all studies, namely pro (see Table 2) and contra (see Table 3) together (= this review 2009) and comparison to the systematic review of Federman [29]].

From: Urticaria and infections

 

Chronic urticaria remission or improvement rate (%)

 

eradicated

HP+ CU

untreated

HP+ CU

untreated

HP- CU

p-value

Chi-square

Federman

59/191 (30.9%)

18/83 (21.7%)

10/74 (13.5%)

p = 0.008

This review

275/447 (61.5%)

43/128 (33.6%)

36/121 (29.7%)

p < 0.001

  1. Abbreviations: HP, Helicobacter pylori; CU, chronic urticaria