Sleep quality and daily lifestyle regularity in workers with different working hours

Abstract

The objective of this study was to assess subjective sleep quality and lifestyle regularity in daytime workers and shift workers. Studies concluding that sleep quality improved with greater regularity. However, there are no data in the literature related to workers. The sample was composed of 141 male workers (42 daytime workers and 99 shift workers) with 42.56 ± 5.66 years of age. Protocols: informed consent form; identification record; Pittsburgh Sleep Quality Index (PSQI), and a shortened 5-item version of the Social Rhythm Metric (SRM-5). Student's t-test for independent samples and Spearman's nonparametric correlation test were used. There was bad sleep quality (6.23 ± 3.3) and daily lifestyle irregularity (2.36 ± 0.8) for 141 workers. There was good sleep quality for daytime workers (4.74 ± 2.68) and bad sleep quality for shift workers (6.86 ± 3.31). There are daily lifestyle irregularities for both groups (for daytime workers 2.23 ± 0.55 and for shift workers 2.41 ± 0.94). There was no significant correlation between the SRM-5 and overall PSQI scores. In shift work, the regularity of daily activities does not seem to be the main factor in determining sleep quality.

Keywords:

• daily lifestyle regularity
• sleep quality
• shift workers
• daytime workers
• behavior
• health
• sleep disorders