Schottke 1997
| Methods | RCT, multicentre study, parallel group design with pair matching Pairs were matched for side and aetiology of lesion, education level, and participating centre. Allocation of 1 person from each matched pair to treatment group by coin toss. 3 people could not be matched and were allocated to the control group No concealment of intervention or outcome measurement (assessment and training by same person) Approach: restoration of attentional functions and compensatory strategies |
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| Participants | Germany, recruited from 2 hospitals Total participant sample 29; 0 people lost to follow‐up Treatment group: n = 16; mean age 64.1 ± 8.5 years; 56.3% males; 51.6 ± 21.5 days since onset; hemisphere of lesion: 5 left, 11 right Control group: n = 13; mean age 65.4 ± 10.9 years; 46.2% males; 37.5 ± 11.4 days since onset; hemisphere of lesion: 2 left, 11 right Inclusion criteria: attention deficit defined as standard scores < 80 in any of the attentional tests; stable cardiovascular system; able to travel to training room; cerebral infarct or haemorrhage; neurological symptoms lasting more than 24 hours Exclusion criteria: aphasia |
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| Interventions | Treatment: 13 training sessions in 3 weeks, which included a wide range of different training methods (e.g. computerised reaction training, paper‐and‐pencil tasks, scanning training, cognitive‐behavioural training and relaxation techniques). Duration of a single session not specified Control: treatment as usual | |
| Outcomes | Measured after intervention (3 weeks) Several standardised measures of attention with no definition of primary outcome measure:
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| Notes | Time after stroke significantly shorter for controls compared to the treatment group. Visual‐Discrimination‐Conditioner programme used for treatment and outcome assessment | |
| Risk of bias | ||
| Bias | Authors' judgement | Support for judgement |
| Random sequence generation (selection bias) | Low risk | Coin tossing |
| Allocation concealment (selection bias) | Unclear risk | No information reported |
| Blinding of participants and personnel (performance bias) All outcomes | Unclear risk | No blinding |
| Blinding of outcome assessment (detection bias) All outcomes | High risk | Training and assessment by same person |
| Incomplete outcome data (attrition bias) All outcomes | Low risk | No missing outcome data |
| Selective reporting (reporting bias) | Low risk | No indication in article, but study protocol not available |