Cited by 33Indoor Air Quality and Microbial ExposureUrban and Rural Development ChallengesEnergy and Environment Impacts

Overcrowding and Hazardous Dwelling Condition Characteristics: A Systematic Search and Scoping Review of Relevance for Health

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Lorentzen, Johnny C., Johanson, Gunnar, Björk, Folke, Stensson, Sofia·2022·International Journal of Environmental Research and Public Health

Abstract

Crowding in dwellings is an important public health issue. We hypothesize that overcrowding may cause indirect health effects by adversely affecting the dwelling itself, for example, by increasing dampness leading to mold. We therefore performed a systematic search and a scoping review on overcrowding leading to dwelling condition characteristics of relevance for health. A literature search was performed using the PubMed and Scopus databases up to 5 March 2021. The search yielded 100 records with relevant information. We found that overcrowding is defined in numerous ways and often address “socially deprived” populations. Six studies report associations of overcrowding with at least one dwelling condition characteristic, namely lead, cadmium, microorganism distribution, dust mite and cockroach allergens in dust, cockroach infestation, peeling paint, and mold. One of the studies reports associations between several characteristics, e.g., association of mold with cleanliness and rodent infestation, and points out the common use of pesticides. Additional characteristics were extracted from the remaining 94 records, without data on statistical associations with overcrowding. Our review suggests that multiple potentially hazardous dwelling condition characteristics often coincide in overcrowded dwellings. The epidemiological attribution of health effects to any characteristic is therefore difficult. Causal relationships are even more difficult to establish, as overcrowding is also associated with a range of social and other circumstances that may affect health. The complexity should be considered by scientists and practitioners dealing with overcrowding in dwellings.

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Research works printed but not linked: 2

  1. [105]Gray A. Definitions of Crowding and the Effects of Crowding on Health: A Literature Review The Ministry of Social Policy Wellington, New Zealand 2001
  2. [106]World Health Organization WHO Guidelines for Indoor Air Quality: Dampness and Mould Regional Office for Europe Copenhagen, Denmark 2009 23785740

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Authors
Lorentzen, J. C., Johanson, G., Björk, F., & Stensson, S.
Affiliations
  • Region Stockholm (SE)
  • Karolinska Institutet (SE)
  • KTH Royal Institute of Technology (SE)
  • RISE Research Institutes of Sweden (SE)
Corresponding author
Lorentzen, Johnny C.
Venue
International Journal of Environmental Research and Public Health
Publisher
MDPI AG
Published
2022-11-23
Volume
19
Issue
23
Pages
15542
ISSN
1660-4601 (ISSN-L)
OpenAlex
W4309830323
Cited by
33
References
111
Citations by year
2026: 9 · 2025: 15 · 2024: 6 · 2023: 3
FWCI
0.58
Type
journal article
Language
en
Open access
Locations
  • International Journal of Environmental Research and Public Health (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • RePEc: Research Papers in Economics (submittedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion)
Funders
The Swedish Research Council FORMAS (2018-00295)
Topics
  • Physical Sciences › Environmental Science › Health, Toxicology and Mutagenesis › Indoor Air Quality and Microbial Exposure
  • Social Sciences › Urban Studies › Urban and Rural Development Challenges
  • Physical Sciences › Environmental Science › Pollution › Energy and Environment Impacts
Keywords
housing overcrowding, lead exposure, cadmium, cockroach allergens, house dust mite allergens, cockroach infestation, rodent infestation, pesticide use, paint peeling, household cleanliness, social deprivation, health effects of housing
MeSH terms
Allergens, Animals, Cockroaches, Crowding, Dust, Fungi, Paint

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