Table 1 Baseline characteristics of the study participants.
Characteristic | Total (n = 372) | No Insomnia (n = 221) | Insomnia (n = 151) | P-value |
|---|---|---|---|---|
Gender, n (%) | 0.908 | |||
Male | 159 (42.7) | 95 (43.0) | 64 (42.4) | |
Female | 213 (57.3) | 126 (57) | 87 (57.6) | |
Age (year) | 37.8 ± 8.0 | 38.0 ± 7.6 | 37.6 ± 8.4 | 0.667 |
BMI (kg/m2) | 23.1 ± 3.3 | 22.8 ± 3.0 | 23.5 ± 3.6 | 0.068 |
Marriage, n (%) | 0.016 | |||
Single | 52 (14.0) | 23 (10.4) | 29 (19.2) | |
Married | 320 (86.0) | 198 (89.6) | 122 (80.8) | |
Education, n (%) | 0.003 | |||
Associate Degree | 66 (17.7) | 33 (14.9) | 33 (21.9) | |
Bachelor’s Degree | 202 (54.3) | 112 (50.7) | 90 (59.6) | |
Master’s Degree | 94 (25.3) | 67 (30.3) | 27 (17.9) | |
Doctorate Degree | 10 (2.7) | 9 (4.1) | 1 (0.7) | |
Profession, n (%) | 0.036 | |||
Doctor | 259 (69.6) | 163 (73.8) | 96 (63.6) | |
Nurse | 113 (30.4) | 58 (26.2) | 55 (36.4) | |
Department, n (%) | 0.076 | |||
Internal Medicine | 190 (51.1) | 119 (53.8) | 71 (47.0) | |
Surgery | 38 (10.2) | 21 (9.5) | 17 (11.3) | |
OB/GYN | 41 (11.0) | 20 (9.0) | 21 (13.9) | |
Emergency/ICU | 22 (5.9) | 10 (4.5) | 12 (7.9) | |
Medical Technology | 41 (11.0) | 21 (9.5) | 20 (13.2) | |
Others | 40 (10.8) | 30 (13.6) | 10 (6.6) | |
Hospital Grade, n (%) | 0.208 | |||
Tertiary Hospital | 261 (70.2) | 151 (68.3) | 110 (72.8) | |
Secondary Hospital | 74 (19.9) | 43 (19.5) | 31 (20.5) | |
Primary Hospital | 37 (9.9) | 27 (12.2) | 10 (6.6) | |
Monthly salary (RMB), n (%) | 0.532 | |||
< 5000 | 36 (9.7) | 18 (8.1) | 18 (11.9) | |
5000–9999 | 235 (63.2) | 141 (63.8) | 94 (62.3) | |
10,000–14,999 | 77 (20.7) | 49 (22.2) | 28 (18.5) | |
≥ 150,000 | 24 (6.5) | 13 (5.9) | 11 (7.3) | |
Comorbidity, n (%) | 0.061 | |||
No | 342 (91.9) | 208 (94.1) | 134 (88.7) | |
Yes | 30 (8.1) | 13 (5.9) | 17 (11.3) | |
Family history of cancer, n (%) | 0.448 | |||
No | 312 (83.9) | 188 (85.1) | 124 (82.1) | |
Yes | 60 (16.1) | 33 (14.9) | 27 (17.9) | |
Smoking status, n (%) | 0.138 | |||
No | 342 (91.9) | 207 (93.7) | 135 (89.4) | |
Yes | 30 (8.1) | 14 (6.3) | 16 (10.6) | |
Drinking status, n (%) | 0.021 | |||
No | 315 (84.7) | 195 (88.2) | 120 (79.5) | |
Yes | 57 (15.3) | 26 (11.8) | 31 (20.5) | |
Unhealthy diet, n (%) | 0.097 | |||
No | 301 (80.9) | 185 (83.7) | 116 (76.8) | |
Yes | 71 (19.1) | 36 (16.3) | 35 (23.2) | |
Weekly night Shift count | 4.0 (1.0, 6.0) | 4.0 (0.0, 5.0) | 5.0 (2.0, 6.0) | 0.006 |
Weekly exercise frequency, n (%) | 0.923 | |||
0 | 169 (45.4) | 102 (46.2) | 67 (44.4) | |
1 | 109 (29.3) | 62 (28.1) | 47 (31.1) | |
2–3 | 65 (17.5) | 40 (18.1) | 25 (16.6) | |
≥ 4 | 29 (7.8) | 17 (7.7) | 12 (7.9) | |
Anxiety, n (%) | < 0.001 | |||
No | 173 (46.5) | 140 (63.3) | 33 (21.9) | |
Yes | 199 (53.5) | 81 (36.7) | 118 (78.1) | |
Depression, n (%) | < 0.001 | |||
No | 157 (42.2) | 134 (60.6) | 23 (15.2) | |
Yes | 215 (57.8) | 87 (39.4) | 128 (84.8) | |
SSD, n (%) | < 0.001 | |||
No | 151 (40.6) | 133 (60.2) | 18 (11.9) | |
Yes | 221 (59.4) | 88 (39.8) | 133 (88.1) | |
GSRS total score | 4.0 (1.0, 8.0) | 3.0 (1.0, 6.0) | 6.0 (3.0, 11.0) | < 0.001 |
