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Table 2 Clinical characteristics of the patients

From: Assessment of the structured clinical interview (SCID) for DSM-5 for somatic symptom disorder in general hospital outpatient clinics in China

  No SSD (n = 473) SSD (n = 224) P Mild (n = 46) Moderate (n = 78) Severe (n = 100) P
Satisfaction 3.3 ± 1.6 2.5 ± 1.8 < 0.001 2.7 ± 1.8 2.2 ± 1.7 2.5 ± 1.9 0.344
Effect 3.1 ± 1.6 2.4 ± 1.6 < 0.001 2.6 ± 1.6 2.2 ± 1.5 2.4 ± 1.7 0.366
PHQ-15 8.0 ± 4.8 12.0 ± 5.5 < 0.001 12.0 ± 6.1 10.7 ± 5.0 13.1 ± 5.6 0.019c
WHO DAS 2.0 17.3 ± 5.8 22.7 ± 8.5 < 0.001 21.3 ± 8.0 21.1 ± 6.8 24.8 ± 9.8 0.006b,c
PHQ-9 6.8 ± 5.8 11.8 ± 6.8 < 0.001 10.4 ± 7.9 11.0 ± 6.0 13.4 ± 6.8 0.012b,c
GAD-7 5.1 ± 5.2 9.7 ± 6.1 < 0.001 7.8 ± 6.3 9.0 ± 5.6 11.1 ± 6.3 0.004b,c
WI-7 13.2 ± 5.5 21.4 ± 7.4 < 0.001 18.6 ± 7.3 20.7 ± 6.9 23.3 ± 7.2 0.001b,c
SSD-12 9.1 ± 9.4 23.6 ± 11.4 < 0.001 17.8 ± 10.8 22.1 ± 10.2 27.5 ± 10.9 < 0.001a,b,c
SSS-8 7.0 ± 5.1 12.0 ± 6.5 < 0.001 11.6 ± 7.0 10.8 ± 5.3 13.3 ± 7.0 0.034c
SF-12 (PCS) 45.1 ± 8.6 39.1 ± 9.0 < 0.001 41.0 ± 8.2 40.0 ± 9.0 37.4 ± 9.0 0.038b
SF-12 (MCS) 44.6 ± 11.5 34.9 ± 11.3 < 0.001 38.6 ± 13.9 34.4 ± 11.6 33.5 ± 9.8 0.044b
Number of visits 1.8 ± 0.9 2.2 ± 1.1 < 0.001 1.9 ± 1.0 1.9 ± 1.0 2.6 ± 1.0 < 0.001a,b,c
  1. Post hoc analysis was adjusted by LSD. a: P < 0.05 Mild vs. Moderate; b: P < 0.05 Mild vs. Severe; c: P < 0.05 Moderate vs. Severe
  2. PHQ-15: Patient Health Questionnaire 15; WHO-DAS 2.0: WHO Disability Assessment Schedule; PHQ-9: Patient Health Questionnaire 9; GAD-7: General Anxiety Disorder-7; WI-7: Whiteley-7 for health-related anxiety; SSD-12: Somatic Symptom Disorder B-criteria; SSS-8: Somatic Symptom Scale-8; SF-12: 12-item short-form health survey; PCS: physical component score; MCS: mental component score; SCID-5-RV: Structured clinical interview for DSM-5, research version