Summary of findings 12. Psychotherapy preceded by motivational interviewing compared with psychotherapy alone.
| Psychotherapy preceded by motivational interviewing compared with psychotherapy alone for conversion disorder | ||||||
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Patient or population: people with conversion disorder according to DSM‐IV or ICD‐10 criteria Settings: outpatient Intervention: psychotherapy preceded by motivational interviewing Comparison: psychotherapy alone | ||||||
| Outcomes | Illustrative comparative risks* (95% CI) | Relative effect (95% CI) | No of participants (studies) | Certainty of the evidence (GRADE) | Comments | |
| Assumed risk | Corresponding risk | |||||
| Psychotherapy | Psychotherapy preceded by motivational interviewing | |||||
|
Reduction in physical signs Decrease in seizure frequency End of treatment |
The mean reduction in physical signs in the control group was 34.8 |
MD 41.40 higher (4.92 higher to 77.88 higher) |
— | 54 (1 study) | ⊕⊝⊝⊝ Very lowa,b | Psychotherapy preceded by motivational interviewing may have little effect on physical signs at end of treatment. |
| Level of functioning | — | — | — | — | — | No studies assessed this outcome. |
|
Quality of life As measured by QOLIE10 (lower is better) Range: 10–50 End of treatment |
The mean quality of life in the control group was 1.8 |
MD 5.40 higher (0.26 higher to 10.54 higher) |
— | 47 (1 study) | ⊕⊝⊝⊝ Very lowa,b | Psychotherapy preceded by motivational interviewing may have little effect on quality of life at 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; QOLIE10: quality of life in epilepsy. | ||||||
| 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 level due to imprecision (wide confidence interval, based on one study with few participants).