Table 2 Regression coefficients and standard errors of ordinal regression of SSD diagnostic criteria regarding participant characteristics, practice characteristics, and the estimated proportion of patients with somatoform disorder
Clinical symptoms of somatic symptom disorder | ||||||
|---|---|---|---|---|---|---|
Criteria A and B both apply | One or more somatic symptoms (A) | Persistent thoughts about symptoms (B1) | Persistent anxiety about symptoms (B2) | Excessive time and energy spent for symptoms (B3) | Symptom persistence (C) | |
B (SE) | B (SE) | B (SE) | B (SE) | B (SE) | B (SE) | |
Gender female | −0.04 (0.11) | 0.05 (0.11) | −0.08 (0.11) | − 0.12 (0.11) | − 0.03 (0.11) | 0.07 (0.11) |
11–20 years of practice | − 0.15 (0.15) | − 0.17 (0.14) | −0.38** (0.14) | − 0.14 (0.14) | −0.26 (0.15) | − 0.24 (0.14) |
21–30 years of practice | −0.11 (0.16) | − 0.18 (0.15) | −0.22 (0.15) | 0.08 (0.15) | −0.20 (0.16) | − 0.29 (0.15) |
> 30 years of practice | − 0.15 (0.19) | −0.45* (0.18) | − 0.35 (0.18) | 0.06 (0.19) | − 0.21 (0.19) | −0.36 (0.19) |
Collaborative practice | −0.09 (0.11) | 0.10 (0.11) | 0.07 (0.11) | −0.03 (0.11) | −0.15 (0.12) | 0.05 (0.11) |
Small town (5.000 to 19.999 Inh.) | −0.35* (0.17) | −0.11 (0.17) | − 0.07 (0.17) | −0.31 (0.17) | − 0.15 (0.17) | −0.16 (0.17) |
Medium town (20.000 to 99.999 Inh.) | 0.01 (0.17) | 0.02 (0.17) | −0.15 (0.17) | −0.16 (0.17) | − 0.04 (0.18) | 0.08 (0.17) |
Large town (above 100.000 Inh.) | −0.10 (0.16) | 0.07 (0.16) | −0.04 (0.16) | 0.05 (0.16) | 0.07 (0.16) | 0.08 (0.16) |
More than 1000 patients per quarter | 0.03 (0.11) | −0.14 (0.11) | 0.14 (0.11) | 0.22* (0.11) | −0.05 (0.12) | −0.09 (0.11) |
Proportion of patients showing a DSM-IV-TR somatoform disorder | 2.33*** (0.17) | 1.89*** (0.15) | 1.91*** (0.16) | 2.01*** (0.16) | 1.87*** (0.16) | 1.96*** (0.16) |
Observations | 1131 | 1129 | 1130 | 1130 | 1125 | 1129 |
Log Likelihood | − 1579.15 | − 1746.65 | − 1671.43 | − 1673.78 | − 1564.65 | − 1701.27 |