Items | Total N = 1497 | Patients without SFD n = 1242 | Patients with SFD n = 255 | χ2 /t /z | P |
---|---|---|---|---|---|
PHQ-9 total score M (SD) | 4.90 (4.63) | 3.86 (3.68) | 10.10 (5.19) | 22.91 |  < 0.001 |
PHQ-15 total score M (SD) | 7.87 (5.16) | 6.55 (4.10) | 14.29 (4.98) | 26.38 | < 0.001 |
SQSS total score M (SD) | 17.55(12.69) | 12.98 (7.30) | 39.81 (9.38) | 5.073 |  < 0.001 |
Somatic symptom M (SD) | 8.32 (5.59) | 6.63 (4.10) | 16.5 (4.54) | 34.28 |  < 0.001 |
Negative perceptions Median (IQR) | 2 (0, 4) | 1 (0, 3) | 7 (4, 10) | 20.00a |  < 0.001 |
Illness behaviour M (SD) | 3.95 (3.86) | 2.81 (2.74) | 9.62 (3.62) | 33.65 |  < 0.001 |
Social function Median (IQR) | 1 (0, 4) | 1 (0, 3) | 6 (4, 8) | 20.25a |  < 0.001 |
Medical expense(Yuan/Month) | 5000 (1250, 20000) | 5000 (1200, 20000) | 10000 (2500, 27750) | 8.39a | 0.03 |
Median (IQR) | |||||
 Number of sick leave days Median (IQR) | 2 (1, 8) | 1(1, 7) | 3 (1, 21) | 1.07a | 0.05 |