Research Article

Excessive Daytime Sleepiness and Its Associated Factors among Emergency Medicine Residents in South Korea: A Nationwide Survey

Table 2

Comparison of the demographic characteristics and work environment of the EM residents according to EDS.

VariablesGroup with EDS (N = 78)Group without EDS (N = 163)

Age, years30.2 ± 3.131.1 ± 3.40.066

Sex0.087
 Male49 (62.8%)120 (73.6%)
 Female29 (37.2%)73 (26.4%)

Marital status0.304
 Unmarried55 (70.5%)104 (63.8%)
 Married23 (29.5%)59 (36.2%)

Smoking habit0.087
 Yes10 (12.8%)36 (22.1%)
 No68 (87.2%)127 (77.9%)

Alcohol consumption0.041
 Yes40 (51.3%)106 (65.0%)
 No38 (48.7%)57 (35.0%)

Regular exercise0.094
 Yes22 (28.2%)64 (39.3%)
 No56 (71.8%)99 (60.7%)
ESS15.0 ± 3.46.3 ± 2.3<0.001
WHW69.4 ± 12.164.2 ± 11.60.001
NWM10.9 ± 3.89.8 ± 3.40.038

Level of emergency medical center0.108
 Regional emergency center33 (42.3%)87 (53.4%)
 Local emergency center45 (57.7%)76 (46.6%)

Satisfaction of work schedule0.033
 Unsatisfied30 (38.5%)39 (23.9%)
 Fair29 (37.2%)62 (38.0%)
 Satisfied19 (24.4%)62 (38.0%)

Available of recess0.216
 No53 (67.9%)94 (57.7%)
 Irregular12 (15.4%)26 (16.0%)
 Yes13 (16.7%)43 (26.4%)

Depression<0.001
 Yes38 (48.7%)32 (19.6%)
 No40 (51.3%)131 (80.4%)

Variables are presented as mean ± standard deviation or number (%). EM, emergency medicine; EDS, excessive daytime sleepiness; ESS, Epworth sleepiness scale; WHW, working hours per week; NWM, night working days per month.