Summary of findings 9. Brief psychotherapeutic intervention compared with standard care.
| Brief psychotherapeutic intervention compared with standard care for conversion disorder | ||||||
|
Patient or population: people with conversion disorder according to DSM‐IV or ICD‐10 criteria Settings: outpatients Intervention: brief psychotherapeutic intervention Comparison: standard care | ||||||
| Outcomes | Illustrative comparative risks* (95% CI) | Relative effect (95% CI) | No of participants (studies) | Certainty of the evidence (GRADE) | Comments | |
| Assumed risk | Corresponding risk | |||||
| Standard care | Brief psychotherapeutic intervention | |||||
|
Reduction in physical signs As assessed by SDQ‐20 (lower is better) Range: 20–100 End of treatment |
Study population | RR 0.12 (0.01 to 2.00) | 19 (1 study) | ⊕⊝⊝⊝ Very lowa,b | Brief psychotherapeutic intervention may have no effect on physical signs at end of treatment. | |
| 400 per 1000 | 48 per 1000 (396 less to 400 more) | |||||
| Level of functioning | — | — | — | — | — | No studies assessed this outcome. |
|
Quality of life As assessed by SF‐36 (lower is better) Range: 0–100 End of treatment |
The mean quality of life in the control group was 50.56 |
MD 6.99 lower (28.09 lower to 14.11 higher) |
16 (1 study) | ⊕⊝⊝⊝ Very lowa,b | Brief psychotherapeutic intervention may have little effect on quality of life after end of treatment. | |
| Adverse events | No studies assessed this outcome. | |||||
| *The basis for the assumed risk (e.g. the median control group risk across studies) is provided in footnotes. The corresponding risk (and its 95% confidence interval) is based on the assumed risk in the comparison group and the relative effect of the intervention (and its 95% CI). CI: confidence interval; DSM‐IV:Diagnostic and Statistical Manual of Mental Disorders 4th Edition; ICD‐10:International Classification of Diseases, Tenth Revision; MD: mean difference; RR: Risk Ratio; SDQ‐20: somatoform dissociation questionnaire; SF‐36: 36‐item Short Form. | ||||||
| GRADE Working Group grades of evidence High quality: further research is very unlikely to change our confidence in the estimate of effect. Moderate quality: further research is likely to have an important impact on our confidence in the estimate of effect and may change the estimate. Low quality: further research is very likely to have an important impact on our confidence in the estimate of effect and is likely to change the estimate. Very low quality: we are very uncertain about the estimate. | ||||||
aDowngraded one level due to high risk of bias. bDowngraded two levels due to imprecision (Wide confidence intervals and based on one study with few patients).