The Correlation Between Night Shift Work Schedules, Sleep Quality, and Depression Symptoms

Figures & data

Table 1 Demographic, Lifestyle and Clinical Characteristics of Two Groups

Variables	Day Shift (n = 105)	Night Shift (n = 86)	95% CI	p-value
Age (years), M±SD	31.7±6.6	30.1±4.1	30.74–32.38	0.002
Gender, n(%)				0.189
Male	63 (60%)	43 (50%)
Female	42 (42%)	43 (50%)
Height (cm), M±SD	167.7±9.1	164.8±9.4	165.10–167.77	0.029
Weight (kg), M±SD	76.4±18.1	70.6±17.8	71.24–76.42	0.028
Marital status, married, n(%)	68 (64.8%)	41 (47.7%)		0.019
Education, n(%)				0.678
Diploma	21 (20%)	13 (15.1%)
Undergraduate degree	78 (74.3%)	68 (79.1%)
Graduate degree	6 (5.7%)	5 (5.8%)
Work hours/week, M±SD	43.9±6.7	43.8±6.1	42.99–44.82	0.886
PSQI, M±SD	6.4±2.5	7.4±3.3	6.40–7.26	0.027
HADS, M±SD	8.0±0.8	8.1±0.8	7.91–8.14	0.958
Depression, n(%)				1.000
Yes	77 (73.3%)	63 (73.3%)
No	28 (26.7%)	23 (26.7%)
Sleep quality, n(%)				0.654
Good sleep quality	40 (38.1%)	30 (34.9%)
Poor sleep quality	65 (61.9%)	56 (65.1%)

Abbreviations: PSQI, Pittsburgh Sleep Quality Index; HADS, Hospital Anxiety and Depressive Disorders Rating Scale; M, Mean; n, Sample size; SD, Standard deviation; %, Percent of participants.

Table 2 Binary Logistic Model of the Clinical Determinants of Depressive Symptoms Among Nurses

Variables	OR	95% CI	p-value
Night shift	1.34	0.65–2.77	0.419
Age	0.96	0.90–1.04	0.349
Marriage	0.55	0.23–1.30	0.175
Work hours/week	0.93	0.87–1.00	0.049
Poor sleep quality	4.62	2.26–9.43	<0.001