The association between janitor physical workload, mental workload, and stress: The SWEEP study.
Ergonomics
NASA TLX
Perceived Stress Scale
injury epidemiology
Journal
Work (Reading, Mass.)
ISSN: 1875-9270
Titre abrégé: Work
Pays: Netherlands
ID NLM: 9204382
Informations de publication
Date de publication:
2020
2020
Historique:
pubmed:
21
4
2020
medline:
22
12
2020
entrez:
21
4
2020
Statut:
ppublish
Résumé
Approximately 2.38 million janitors are employed in the U.S. While high physical workload may explain a lost-work days rate 2.7 times greater than other occupations, little is known about the association between janitors' physical workload, mental workload, and stress. The objective of this study was to assess the associations between physical (ergonomic) and mental workload exposures and stress outcomes among janitors. Questionnaire data, focused on ergonomic workload, mental workload and stress, were collected from Minnesota janitors for a one-year period. Physical workload was assessed with Borg Scales and Rapid Entire Body Assessments (REBA). Mental workload assessment utilized the NASA Task Load Index (TLX). Stress assessments utilized single-item ordinal stress scale (SISS) and Perceived Stress Scale-4 (PSS-4) measures. Descriptive and multivariable analyses, including bias adjustment, were conducted. Odds ratios (OR) and 95% confidence intervals (CI) for ergonomic workload (task frequency) effects on SISS were: REBA (1.18 OR, 1.02-1.37 CI); Borg (1.25 OR, 1.00-1.56 CI); combined REBA and Borg (1.10 OR, 1.01-1.20 CI). Mental workload was associated with higher PSS-4 levels (0.15 Mean Difference, 0.08-0.22 CI) and a 3% increased risk for each one-unit increase in the SISS scale (1.03 OR, 1.02-1.05 CI). This research demonstrated a moderate effect of physical and mental workloads on stress among janitors.
Sections du résumé
BACKGROUND
BACKGROUND
Approximately 2.38 million janitors are employed in the U.S. While high physical workload may explain a lost-work days rate 2.7 times greater than other occupations, little is known about the association between janitors' physical workload, mental workload, and stress.
OBJECTIVE
OBJECTIVE
The objective of this study was to assess the associations between physical (ergonomic) and mental workload exposures and stress outcomes among janitors.
METHODS
METHODS
Questionnaire data, focused on ergonomic workload, mental workload and stress, were collected from Minnesota janitors for a one-year period. Physical workload was assessed with Borg Scales and Rapid Entire Body Assessments (REBA). Mental workload assessment utilized the NASA Task Load Index (TLX). Stress assessments utilized single-item ordinal stress scale (SISS) and Perceived Stress Scale-4 (PSS-4) measures. Descriptive and multivariable analyses, including bias adjustment, were conducted.
RESULTS
RESULTS
Odds ratios (OR) and 95% confidence intervals (CI) for ergonomic workload (task frequency) effects on SISS were: REBA (1.18 OR, 1.02-1.37 CI); Borg (1.25 OR, 1.00-1.56 CI); combined REBA and Borg (1.10 OR, 1.01-1.20 CI). Mental workload was associated with higher PSS-4 levels (0.15 Mean Difference, 0.08-0.22 CI) and a 3% increased risk for each one-unit increase in the SISS scale (1.03 OR, 1.02-1.05 CI).
CONCLUSIONS
CONCLUSIONS
This research demonstrated a moderate effect of physical and mental workloads on stress among janitors.
Identifiants
pubmed: 32310213
pii: WOR203135
doi: 10.3233/WOR-203135
doi:
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM