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Table 3 Key results of the meta-analyses, with results of tests for heterogeneity

From: Association of residential dampness and mold with respiratory tract infections and bronchitis: a meta-analysis

Health Outcome All Studies Studies Controlling for All Four Key Confounders
  Summary Estimate OR (95% CI) p-Value Hetero-geneity Summary Estimate OR (95% CI) p-Value Hetero-geneity Attributable Risk Proportion#
Bronchitis 1.45
(1.34 - 1.56)
< 0.0001 1.45
(1.32 - 1.59)
0.12 8.3 - 18.4%
Respiratory infection group 1.44
(1.32 - 1.58)
< 0.0001 1.44
(1.31 - 1.59)
< 0.0001  
Respiratory infections excluding otitis media 1.43
(1.31 - 1.56)
< 0.0001 1.40
(1.29-1.52)
< 0.0001  
Respiratory infections excluding common cold and nonspecific upper respiratory infections 1.42
(1.26 - 1.60)
0.01 1.50
(1.32 - 1.70)
0.07 9.1 - 20%
Common cold or acute upper respiratory infection 1.38
(1.21 - 1.57)
0.009 1.38
(1.13 - 1.67)
0.002  
Respiratory infections (children or infants) 1.48
(1.34 - 1.62)
0.16 1.48
(1.33 - 1.65)
0.09 8.8 - 19.4%
Respiratory infections (adults) 1.50
(1.22 - 1.83)
< 0.0001 1.49
(1.14 - 1.95)
< 0.0001  
  1. # estimated for findings restricted to studies controlling for four key confounders and assuming a range of 20-50% of houses with dampness or mold; provided only for estimates with p-value for heterogeneity >0.05.