Prevalence of Sleep Disorders and Their Impacts on Occupational Performance: A Comparison between Shift Workers and Nonshift Workers

Table 1

Baseline characteristics in two groups of shift workers and nonshift workers.

Characteristics	Shift workers; 𝑁=210	Nonshift workers; 𝑁=204	𝑃 value
Age	33.7 ± 5.9	35.1 ± 10.9	0.1
BMI	22.8 ± 3.1	23.5 ± 4.4	0.08
Marital status (married)	173 (%)	159 (%)	0.31
Educational status	9.3 ± 3.6	12.9 ± 5.1	0.04
Years of employment	12.1 ± 8.5	13.7 ± 10.3	0.086
OISD	27.2 ± 9.8	16.1 ± 10.3	0.001