Claim C-0017

In dwellings, a single study suggests that house dust mites and visible dampness or microbial growth go together with more symptoms related to asthma in adults.

Structure

Source: Dampness and water damage, House dust mites
Factor: Mould
Outcome: Respiratory symptoms
Population: adults
Relation: increases
Evidence grade: D · single-study
Caveat: the sentence states a direction only, with no effect size; a cross-sectional study of Swedish dwellings from 1995

Based on

Finding F-0037: “Symptoms related to asthma were more common in dwellings with house dust mites, and visible signs of dampness or microbial growth in the building.” (CKB 0503, p. 1)

Counter-evidence

Finding F-0035: “No association with onset of asthma was observed neither in all students nor in students with previous obstructive airway problems.” (CKB 1416, p. 1)

A Claim is Coridum’s synthesis of Findings and Observations; the evidence grade follows the study designs behind it.