Sentences with phrase «case control studies indicate»

Not exact matches

Jarman scores were calculated for the ward in which the practice was based; higher values indicate more deprivation.12 Thirty four practices participated in the GP case - control study.

A retrospective series of SIDS cases indicated that mean maternal body weight was higher for bed - sharing mothers than for non — bed - sharing mothers.172 The only case - control study to investigate the relationship between maternal body weight and bed - sharing did not find an increased risk of bed - sharing with increased maternal weight.173

Reviews of cognitive behaviour therapy in schizophrenia indicate that evaluations are mainly case studies or uncontrolled trials.3 — 5 Four controlled trials have suggested that cognitive behavioural interventions can result in a reduction of psychotic and associated symptoms that are resistant to medication in chronic schizophrenia, 6 — 9 and a single trial has shown reduction of symptoms in acute schizophrenia.10 Although these trials are small and all suffer methodological limitations, particularly a lack of blind assessment, they represent encouraging evidence that cognitive behavioural interventions can have considerable benefits in reducing persistent hallucinations and delusions.