Validating overcrowding measures using the UK Household Longitudinal Study

Overcrowding has been regarded as indicating material deprivation and treated as a proxy measure for individual socioeconomic status. Conventionally, ‘persons per room’ (PPR) has been employed to identify overcrowded households in UK survey data, though the ‘bedroom standard’ (BS) approach or the ‘m...

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Main Authors: Noriko Cable, Amanda Sacker
Format: Article
Language:English
Published: Elsevier 2019-08-01
Series:SSM: Population Health
Online Access:http://www.sciencedirect.com/science/article/pii/S2352827318303628
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author Noriko Cable
Amanda Sacker
author_facet Noriko Cable
Amanda Sacker
author_sort Noriko Cable
collection DOAJ
description Overcrowding has been regarded as indicating material deprivation and treated as a proxy measure for individual socioeconomic status. Conventionally, ‘persons per room’ (PPR) has been employed to identify overcrowded households in UK survey data, though the ‘bedroom standard’ (BS) approach or the ‘modified bedroom standard’ (MBS) approach has been thought to capture overcrowded households better. Little is known about which overcrowding measure will perform well in regard to construct and face validity. In this work, associations between three overcrowding measures and socioeconomic (income and household tenure status) and health (satisfied with health and GHQ12) indicators were assessed, using the UK Household Longitudinal Study Wave 6 data.PPR, BS and MBS were derived using relevant housing grid information and housing information from the dataset, which were aggregated at a household level (N = 18,848). Raw scores were categorised into ‘under occupied (rooms < people)’, ‘balanced (rooms = people)’, ‘overcrowded (rooms < people)’ according to an established cut-off point for each overcrowding measure. Kappa coefficient was used to assess the level of agreement between overcrowding measures. Construct validity of the measures were tested against log-transformed household equivalised income and housing tenure status as well as with each component of overcrowding measures. Using individual data (N = 38,455), face validity of the overcrowding measures was tested against satisfaction with health and mental health indicated by GHQ12.Each overcrowding measure has a fair agreement with the others (kappa = 0.44, p<0.001). All overcrowding measures were significantly correlated with income and household tenure in a similar manner. However, components of overcrowding measures were associated differently to these socioeconomic indicators, while they were better correlated with satisfaction with health compared to GHQ12, showing a complex aspect of overcrowding measures.In sum, use of PPR as a socioeconomic indicator is reasonable. However, given the complexity of the mechanism of health inequalities, the relevant household information is required to understand the link. Keywords: Overcrowding, Person per room ratio, Bedroom standard, Modified bedroom standard, Validity, UK household longitudinal study
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spelling doaj.art-29f0df8852124168ab414dc35d57fbd12022-12-21T19:57:17ZengElsevierSSM: Population Health2352-82732019-08-018Validating overcrowding measures using the UK Household Longitudinal StudyNoriko Cable0Amanda Sacker1Corresponding author.; Department of Epidemiology and Public Health, University College London, 1-19 Torrington Place, London, WC1E 6BT, United KingdomDepartment of Epidemiology and Public Health, University College London, 1-19 Torrington Place, London, WC1E 6BT, United KingdomOvercrowding has been regarded as indicating material deprivation and treated as a proxy measure for individual socioeconomic status. Conventionally, ‘persons per room’ (PPR) has been employed to identify overcrowded households in UK survey data, though the ‘bedroom standard’ (BS) approach or the ‘modified bedroom standard’ (MBS) approach has been thought to capture overcrowded households better. Little is known about which overcrowding measure will perform well in regard to construct and face validity. In this work, associations between three overcrowding measures and socioeconomic (income and household tenure status) and health (satisfied with health and GHQ12) indicators were assessed, using the UK Household Longitudinal Study Wave 6 data.PPR, BS and MBS were derived using relevant housing grid information and housing information from the dataset, which were aggregated at a household level (N = 18,848). Raw scores were categorised into ‘under occupied (rooms < people)’, ‘balanced (rooms = people)’, ‘overcrowded (rooms < people)’ according to an established cut-off point for each overcrowding measure. Kappa coefficient was used to assess the level of agreement between overcrowding measures. Construct validity of the measures were tested against log-transformed household equivalised income and housing tenure status as well as with each component of overcrowding measures. Using individual data (N = 38,455), face validity of the overcrowding measures was tested against satisfaction with health and mental health indicated by GHQ12.Each overcrowding measure has a fair agreement with the others (kappa = 0.44, p<0.001). All overcrowding measures were significantly correlated with income and household tenure in a similar manner. However, components of overcrowding measures were associated differently to these socioeconomic indicators, while they were better correlated with satisfaction with health compared to GHQ12, showing a complex aspect of overcrowding measures.In sum, use of PPR as a socioeconomic indicator is reasonable. However, given the complexity of the mechanism of health inequalities, the relevant household information is required to understand the link. Keywords: Overcrowding, Person per room ratio, Bedroom standard, Modified bedroom standard, Validity, UK household longitudinal studyhttp://www.sciencedirect.com/science/article/pii/S2352827318303628
spellingShingle Noriko Cable
Amanda Sacker
Validating overcrowding measures using the UK Household Longitudinal Study
SSM: Population Health
title Validating overcrowding measures using the UK Household Longitudinal Study
title_full Validating overcrowding measures using the UK Household Longitudinal Study
title_fullStr Validating overcrowding measures using the UK Household Longitudinal Study
title_full_unstemmed Validating overcrowding measures using the UK Household Longitudinal Study
title_short Validating overcrowding measures using the UK Household Longitudinal Study
title_sort validating overcrowding measures using the uk household longitudinal study
url http://www.sciencedirect.com/science/article/pii/S2352827318303628
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