ERF of indoor dampness on respiratory health effects

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Question

What is the association between exposure to indoor dampness and mould in homes and respiratory health effects?

Answer

Concentration-response function

ERF of indoor dampness on respiratory health effects: Difference between revisions([[OR]] per yes/no visible dampness and/or mold or mold odor)

Obs	Disease	Response metric	Subjects	Exposure route	Exposure metric	Exposure unit	ERF parameter	Threshold	ERF	Description
1	Respiratory health effect	Upper respiratory tract symptoms	All	Inhalation	yes/no visible dampness and/or mold or mold odor	-	OR	0	1.70	1.70 (1.44-2.00), No. studies: 13

Page-specific entries (indices that have exactly one value each for the whole variable; usually mentioned in the title and/or in the scope.):

• Pollutant: visible dampness and/or mold or mold odor

Definition

Data

Odds ratios for different health effects in homes with vs. without visible dampness and/or mold or mold odor.

Outcome	Subjects	No. studies	Odds ratio central estimate (95 % CI)	Estimated % increase in damp homes
Upper respiratory tract symptoms	All	13	1.70 (1.44–2.00)	52
Cough	All	18	1.67 (1.49–1.86)	50
	Adults	6	1.52 (1.18–1.96)	–
	Children	12	1.75 (1.56–1.96)	–
Wheeze	All	22	1.50 (1.38–1.64)	44
	Adults	5	1.39 (1.04–1.85)	–
	Children	17	1.53 (1.39–1.68)	–
Current asthma	All	10	1.56 (1.30–1.86)	50
Ever-diagnosed asthma	All	8	1.37 (1.23–1.53)	33
	Children		1.35 (1.20–1.51)
Asthma development	All	4	1.34 (0.86–2.10)	30
Bronchitis	All		1.45 (1.32–1.59)
	Children		1.38 (1.28–1.47)
Respiratory infections	All		1.44 (1.31–1.59)
	Adults		1.49 (1.14–1.95)
	Children		1.48 (1.33–1.65)
Sensitivity to inhaled antigens	Children		1.33 (1.23–1.44)
Hay fever	Children		1.35 (1.18–1.53)

Unit

OR per yes/no visible dampness and/or mold or mold odor

Formula

• Generates random samples of possible ORs.
  • Normal distribution assumed, sd estimated from confidence interval using sd = (upper bound - lower bound)/3.92

n <- 10000
erf <- rnorm(n, 1.56, (1.86-1.30)/3.92)
dim(erf) <- c(n, 1, 1)
dimnames(erf) <- list(obs=1:n, Outcome="Current asthma", "Age"="All")
erf <- as.data.frame(as.table(erf))

Result

{{#opasnet_base_link:Op_en4716}}

See also

• heande:Moisture damage
• Assessment of building policies' effect on dampness and asthma in Europe

Related files

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