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OBJECTIVE--To assess treatment discontinuation rates with selective serotonin reuptake inhibitors compared with tricyclic antidepressants. DESIGN--Meta-analysis of 62 randomised controlled trials. SUBJECTS--6029 patients with major unipolar depression. MAIN OUTCOME MEASURES--Pooled risk ratios for drop out rates with respect to all cases of discontinuation and those due to side effects and treatment failure. RESULTS--The total discontinuation rate was 10% lower with selective serotonin reuptake inhibitors than with tricyclic antidepressants (risk ratio 0.90; 95% confidence interval 0.84 to 0.97) and the drop out rate due to side effects was 25% lower (risk ratio 0.75; 0.66 to 0.84). There was no significant difference between drug classes in the drop out rates for treatment failure. The risk ratios for drop out did not differ significantly between individual selective serotonin reuptake inhibitors. CONCLUSIONS--Selective serotonin reuptake inhibitors are better tolerated than tricyclic antidepressants as measured by total numbers of drop outs. The definite advantage to selective serotonin reuptake inhibitors is explained by fewer drop outs due to side effects. The overall difference, however, is comparatively small and may not be clinically relevant. Analyses of cost effectiveness should not overestimate the advantage to selective serotonin reuptake inhibitors.

OBJECTIVES: To assess the efficacy of treatments for settling problems and night waking in young children. DESIGN: A systematic review of randomised controlled trials of interventions for settling problems and night waking in young children. SETTING: Electronic bibliographic databases and references on identified papers, hand searches, and personal contact with specialists. SUBJECTS: Children aged 5 years or less who had established settling problems or night waking. INTERVENTIONS: Interventions had to be described and a placebo, waiting list, or another intervention needed to have been used as a comparison. Interventions comprised drug trials or non-drug trials. MAIN OUTCOME MEASURES: Number of wakes at night, time to settle, or number of nights in which these problems occurred. RESULTS: Drugs seemed to be effective in treating night waking in the short term, but long term efficacy was questionable. In contrast, specific behavioural interventions showed both short term efficacy and possible longer term effects for dealing with settling problems and night waking. CONCLUSIONS: Given the prevalence and persistence of childhood sleep problems and the effects they can have on children and families, treatments that offer long lasting benefits are appealing and these are likely to be behavioural interventions.