Summary of findings for the main comparison. Single‐component hydration intervention versus control for preventing delirium in older people in institutional long‐term care.
| Single‐component hydration intervention versus control for preventing delirium in older people in institutional long‐term care | ||||||
| Patient or population: people at risk of delirium in institutional long‐term care Settings: long‐term care institutions Intervention: single‐component hydration intervention Comparison: control | ||||||
| Outcomes | Anticipated absolute effects* (95% CI) | Relative effect (95% CI) | No of participants (studies) | Certainty of the evidence (GRADE) | Comments | |
| Risk with control | Risk with single‐component hydration intervention versus control | |||||
|
Prevalence of delirium Not measured |
— | — | — | — | — | — |
|
Incidence of delirium NEECHAM Confusion Scale Follow‐up: mean 4 weeks |
Study population | RR 0.85 (0.18 to 4.0) | 98 (1 study) | ⊕⊝⊝⊝ Very lowa,b,c | ||
| 67 per 1000 | 57 per 1000 (12 to 268) | |||||
| Severity of delirium | — | — | — | — | — | Not measured |
| Mortality | — | — | — | — | — | Not measured |
| Cognitive function | — | — | — | — | — | Not measured |
| Falls | — | — | — | — | — | Not measured |
| Hospital admissions | — | — | — | — | — | Not measured |
| *Therisk in the intervention group (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; NEECHAM: Neelon and Champagne; RR: risk ratio. | ||||||
| GRADE Working Group grades of evidence High certainty: further research is very unlikely to change our confidence in the estimate of effect. Moderate certainty: further research is likely to have an important impact on our confidence in the estimate of effect and may change the estimate. Low certainty: 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 certainty: we are very uncertain about the estimate. | ||||||
aAssessed at high risk of methodological bias for blinding, outcome data and other bias. bOne trial only so not possible to assess for consistency. cVery low rate of delirium events. Wide confidence limits indicate uncertainty; downgraded two levels for imprecision.