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Assessing the exposure-response relationship of sleep disturbance and vibration in field and laboratory settings

Persson-Waye, K; Smith, M; Hussain-Alkhateeb, L; Koopman, A; Ogren, M; Peris, E; Waddington, DC; Woodcock, JS; Sharp, C; Janssen, S

Authors

K Persson-Waye

M Smith

L Hussain-Alkhateeb

A Koopman

M Ogren

E Peris

JS Woodcock

C Sharp

S Janssen



Abstract

Exposure to nocturnal freight train vibrations may impact sleep, but exposure-response relationships are lacking. The European project CargoVibes evaluated sleep disturbance both in the field and in the laboratory and provides unique data, as measures of response and exposure metrics are comparable. This paper therefore provides data on exposure-response relationships of vibration and sleep disturbance and compares the relationships evaluated in the laboratory and the field. Two field studies (one in Poland and one in the Netherlands) with 233 valid respondents in total, and three laboratory studies in Sweden with a total of 59 subjects over 350 person-nights were performed. The odds ratios (OR) of sleep disturbance were analyzed in relation to nighttime vibration exposure by ordinal logit regression, adjusting for moderating factors common for the studies. Outcome specific fractions were calculated for eleven sleep outcomes and supported comparability between the field and laboratory settings. Vibration exposure was significantly associated to sleep disturbance, OR = 3.51 (95% confidence interval 2.6–4.73) denoting a three and a half times increased odds of sleep disturbance with one unit increased 8 h nighttime log10 Root Mean Square vibration. The results suggest no significant difference between field and laboratory settings OR = 1.37 (0.59–3.19). However, odds of sleep disturbance were higher in the Netherlands as compared to Sweden, indicating unexplained differences between study populations or countries, possibly related to cultural and contextual differences and uncertainties in exposure assessments. Future studies should be carefully designed to record explanatory factors in the field and enhance ecological validity in the laboratory. Nevertheless, the presented combined data set provides a first set of exposure response relationships for vibration-induced sleep disturbance, which are useful when considering public health outcomes among exposed populations.

Journal Article Type Article
Acceptance Date Sep 17, 2018
Online Publication Date Sep 21, 2018
Publication Date Feb 1, 2019
Deposit Date Sep 25, 2018
Publicly Available Date Sep 25, 2018
Journal Environmental Pollution
Print ISSN 0269-7491
Publisher Elsevier
Volume 245
Pages 558-567
DOI https://doi.org/10.1016/j.envpol.2018.09.082
Publisher URL https://doi.org/10.1016/j.envpol.2018.09.082
Related Public URLs https://www.journals.elsevier.com/environmental-pollution

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