209
Views
6
CrossRef citations to date
0
Altmetric
Articles

Comparison of distributions of morningness–eveningness among populations of shift workers on varied work patterns in different organizations

, &
Pages 235-248 | Received 20 Nov 2010, Accepted 16 Feb 2011, Published online: 12 Apr 2011
 

Abstract

We studied morningness–eveningness distribution in a cohort of 481 shift workers (SWs), from different organizations with varied shift-work patterns, namely 86 on running rotation (RR), 175 on weekly rotation, 173 on quick rotation (QR), and 47 on split rotation (SR). The prevalence of chronotype and distribution of morningness–eveningness score were studied. The preponderance of morning type was notable in the studied population of SWs, sampled from all four groups, except SR. Nevertheless, the frequency of early type was still higher in the SR group. Multiple linear regression models were fitted to find out relationship between the dependent variable, i.e., the log-transformed Morningness–Eveningness Questionnaire (MEQ) score, and a number of independent predictors (age, weight, height, body surface area, body mass index, and length of service) in all four clusters independently. Of the number of predictors, only the coefficient of “age” was statistically significant in RR and QR groups. In the present investigation, a notable departure of the distribution from the accepted Gaussian distribution of chronotype was witnessed. This could be ascribed to cultural differences between human populations of temperate and tropical regions. However, in the present study, a possible link between cultural differences and chronotype distribution has not been investigated.

Acknowledgements

Financial assistance from University Grants Commission (UGC), New Delhi, India, through its DRS Special Assistance Program sanctioned to the School of Life Sciences, PRSU, Raipur, in the thrust area of Chronobiology is gratefully acknowledged. We are thankful to subjects who participated in this study.

Log in via your institution

Log in to Taylor & Francis Online

PDF download + Online access

  • 48 hours access to article PDF & online version
  • Article PDF can be downloaded
  • Article PDF can be printed
USD 61.00 Add to cart

Issue Purchase

  • 30 days online access to complete issue
  • Article PDFs can be downloaded
  • Article PDFs can be printed
USD 387.00 Add to cart

* Local tax will be added as applicable

Related Research

People also read lists articles that other readers of this article have read.

Recommended articles lists articles that we recommend and is powered by our AI driven recommendation engine.

Cited by lists all citing articles based on Crossref citations.
Articles with the Crossref icon will open in a new tab.