Table 5

 Estimated odds ratios (OR) and 95% confidence intervals (95% CI) for the association between mould/dampness current exposure and wheeze/asthma in the literature (questionnaire based studies)

Author (publication year)nAgeDesign. Definition of mould/dampness exposureSymptom/diseaseOR (95% CI)
Present study179187Cross sectional. Positive answer to the question: “Have you seen mould/dampness/fungi on the walls or on the ceiling of your child’s bedroom recently?”Wheeze1.78 (1.43–2.20)
Asthma1.29 (1.00–1.67)
1195713Wheeze1.33 (1.02–1.74)
Asthma1.38 (1.03–1.85)
Jedrychowski et al (1998)911299Cross sectional. Presence on the walls of any one of: (1) small moisture stains; (2) larger moisture stains; (3) visible mould on small surface; (4) visible mould on larger surfaceWheeze1.63 (1.07–2.48)
Fisher et al (1998)36160057–11Cross sectional. Presence on the walls of damp spots or mould during the last two yearsWheeze1.29 (1.06–1.58) to 1.60 (1.30–1.97)
Yang et al (1997)2341646–12Cross sectional. Presence of any one of: (1) subjective dampness assessment (home was considered damp by the residents); (2) visible mould or mildew on surfaces inside the home during the past year; (3) appearance of standing water within the home/water damage/leaks of water into the buildingWheeze1.81 (1.32–2.47)
Asthma1.73 (1.20–2.49)
Dekker et al (1991)38140595–8Cross sectional. Presence of any one of: (1) visible mould growth; (2) wet or damp spots on indoor surfaces; (3) basement water damage or leakingWheeze1.61 (1.39–1.85)
Dales et al (1991)28149485–8Cross sectional. Presence of any one of: (1) visible mould growth; (2) wet or damp spots on indoor surfaces; (3) basement water damage or leakingAsthma1.45 (1.23–1.71)