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Search review questions
Each row is one question a systematic review asked: who, what, compared with what, and which outcome, with the effect it found and how certain that is. Words match anywhere in the field.
1,645 questions in 107 reviews · Wounds
current versionsNo studies 651 · 39.6%Ungraded 84 · 5.1%Very low 554 · 33.7%Low 283 · 17.2%Moderate 64 · 3.9%High 9 · 0.5%
Ungraded means an effect was reported without a GRADE rating; it is not a gap. No studies means the review found nothing to answer the question. The six categories are a display order, not a score.
| Question | Effect | Evidence | Status / GRADE |
|---|---|---|---|
Alternating pressure (active) air surfaces vs reactive air surfaces Support surface‐associated patient comfort · pressure ulcer prevention Alternating pressure (active) air surfaces for preventing pressure ulcers (2021) · Cochrane | no estimate extracted | 4 studies · 1364 participants | Very low |
Alternating pressure (active) air surfaces vs reactive air surfaces All reported adverse events · pressure ulcer prevention Alternating pressure (active) air surfaces for preventing pressure ulcers (2021) · Cochrane | no estimate extracted | NR | No studies |
Alternating pressure (active) air surfaces vs reactive air surfaces Health‐related quality of life · pressure ulcer prevention Alternating pressure (active) air surfaces for preventing pressure ulcers (2021) · Cochrane | no estimate extracted | NR | No studies |
Alternating pressure (active) air surfaces vs reactive air surfaces Cost effectiveness · pressure ulcer prevention Alternating pressure (active) air surfaces for preventing pressure ulcers (2021) · Cochrane | no estimate extracted | NR | No studies |
Alternating pressure (active) air surfaces vs reactive water‐filled surfaces Proportion of participants developing a new pressure ulcer · pressure ulcer prevention Alternating pressure (active) air surfaces for preventing pressure ulcers (2021) · Cochrane | RR 1.21 [0.52, 2.83] | 2 studies · 358 participants | Very low |
Alternating pressure (active) air surfaces vs reactive water‐filled surfaces Time to pressure ulcer development · pressure ulcer prevention Alternating pressure (active) air surfaces for preventing pressure ulcers (2021) · Cochrane | no estimate extracted | NR | No studies |
Alternating pressure (active) air surfaces vs reactive water‐filled surfaces Support surface‐associated patient comfort · pressure ulcer prevention Alternating pressure (active) air surfaces for preventing pressure ulcers (2021) · Cochrane | no estimate extracted | NR | No studies |
Alternating pressure (active) air surfaces vs reactive water‐filled surfaces All reported adverse events · pressure ulcer prevention Alternating pressure (active) air surfaces for preventing pressure ulcers (2021) · Cochrane | no estimate extracted | NR | No studies |
Alternating pressure (active) air surfaces vs reactive water‐filled surfaces Health‐related quality of life · pressure ulcer prevention Alternating pressure (active) air surfaces for preventing pressure ulcers (2021) · Cochrane | no estimate extracted | NR | No studies |
Alternating pressure (active) air surfaces vs reactive water‐filled surfaces Cost effectiveness · pressure ulcer prevention Alternating pressure (active) air surfaces for preventing pressure ulcers (2021) · Cochrane | no estimate extracted | NR | No studies |
Alternating pressure (active) air surfaces vs foam surfaces Time to pressure ulcer development · pressure ulcer prevention Alternating pressure (active) air surfaces for preventing pressure ulcers (2021) · Cochrane | HR 0.41 [0.1, 1.64] | 2 studies · 2105 participants | Very low |
Alternating pressure (active) air surfaces vs reactive fibre surfaces Proportion of participants developing a new pressure ulcer · pressure ulcer prevention Alternating pressure (active) air surfaces for preventing pressure ulcers (2021) · Cochrane | RR 0.9 [0.68, 1.19] | 3 studies · 285 participants | Very low |
Alternating pressure (active) air surfaces vs reactive fibre surfaces Time to pressure ulcer development · pressure ulcer prevention Alternating pressure (active) air surfaces for preventing pressure ulcers (2021) · Cochrane | no estimate extracted | NR | No studies |
Alternating pressure (active) air surfaces vs reactive fibre surfaces Support surface‐associated patient comfort · pressure ulcer prevention Alternating pressure (active) air surfaces for preventing pressure ulcers (2021) · Cochrane | no estimate extracted | 1 study · 187 participants | Very low |
Alternating pressure (active) air surfaces vs reactive fibre surfaces All reported adverse events · pressure ulcer prevention Alternating pressure (active) air surfaces for preventing pressure ulcers (2021) · Cochrane | no estimate extracted | NR | No studies |
Alternating pressure (active) air surfaces vs reactive fibre surfaces Health‐related quality of life · pressure ulcer prevention Alternating pressure (active) air surfaces for preventing pressure ulcers (2021) · Cochrane | no estimate extracted | NR | No studies |
Alternating pressure (active) air surfaces vs reactive fibre surfaces Cost effectiveness · pressure ulcer prevention Alternating pressure (active) air surfaces for preventing pressure ulcers (2021) · Cochrane | no estimate extracted | NR | No studies |
Alternating pressure (active) air surfaces on operating tables and subsequently on ward beds vs reactive gel surfaces on operating tables followed by foam surfaces on ward beds Proportion of participants developing a new pressure ulcer · pressure ulcer prevention Alternating pressure (active) air surfaces for preventing pressure ulcers (2021) · Cochrane | RR 0.22 [0.06, 0.76] | 2 studies · 415 participants | Low |
Alternating pressure (active) air surfaces on operating tables and subsequently on ward beds vs reactive gel surfaces on operating tables followed by foam surfaces on ward beds Time to pressure ulcer development · pressure ulcer prevention Alternating pressure (active) air surfaces for preventing pressure ulcers (2021) · Cochrane | no estimate extracted | NR | No studies |
Alternating pressure (active) air surfaces on operating tables and subsequently on ward beds vs reactive gel surfaces on operating tables followed by foam surfaces on ward beds Support surface‐associated patient comfort · pressure ulcer prevention Alternating pressure (active) air surfaces for preventing pressure ulcers (2021) · Cochrane | no estimate extracted | NR | No studies |
Alternating pressure (active) air surfaces on operating tables and subsequently on ward beds vs reactive gel surfaces on operating tables followed by foam surfaces on ward beds All reported adverse events · pressure ulcer prevention Alternating pressure (active) air surfaces for preventing pressure ulcers (2021) · Cochrane | no estimate extracted | 1 study · 198 participants | Very low |
Alternating pressure (active) air surfaces vs foam surfaces Support surface‐associated patient comfort · pressure ulcer prevention Alternating pressure (active) air surfaces for preventing pressure ulcers (2021) · Cochrane | no estimate extracted | 1 study · 76 participants | Very low |
Alternating pressure (active) air surfaces on operating tables and subsequently on ward beds vs reactive gel surfaces on operating tables followed by foam surfaces on ward beds Health‐related quality of life · pressure ulcer prevention Alternating pressure (active) air surfaces for preventing pressure ulcers (2021) · Cochrane | no estimate extracted | NR | No studies |
Alternating pressure (active) air surfaces on operating tables and subsequently on ward beds vs reactive gel surfaces on operating tables followed by foam surfaces on ward beds Cost effectiveness · pressure ulcer prevention Alternating pressure (active) air surfaces for preventing pressure ulcers (2021) · Cochrane | no estimate extracted | NR | No studies |
Alternating pressure (active) air surfaces vs foam surfaces All reported adverse events · pressure ulcer prevention Alternating pressure (active) air surfaces for preventing pressure ulcers (2021) · Cochrane | no estimate extracted | 3 studies · 2181 participants | Very low |
Alternating pressure (active) air surfaces vs foam surfaces Health‐related quality of life (90‐day EQ‐5D‐5L, expressed as utility values ranging from −1 to 1 with 1 representing perfect health, 0 representing death, and −1 representing worse than death) · pressure ulcer prevention Alternating pressure (active) air surfaces for preventing pressure ulcers (2021) · Cochrane | no estimate extracted | 1 study · 267 participants | Low |
Alternating pressure (active) air surfaces vs foam surfaces Health‐related quality of life (90‐day PU‐QoL‐UI, expressed as utility values ranging from −1 to 1 with 1 representing perfect health, 0 representing death, and −1 representing worse than death) · pressure ulcer prevention Alternating pressure (active) air surfaces for preventing pressure ulcers (2021) · Cochrane | no estimate extracted | 1 study · 233 participants | Low |
Alternating pressure (active) air surfaces vs foam surfaces Cost‐effectiveness · pressure ulcer prevention Alternating pressure (active) air surfaces for preventing pressure ulcers (2021) · Cochrane | no estimate extracted | 1 study · 1 participants | Moderate |
Alternating pressure (active) air surfaces vs reactive air surfaces Proportion of participants developing a new pressure ulcer · pressure ulcer prevention Alternating pressure (active) air surfaces for preventing pressure ulcers (2021) · Cochrane | RR 1.61 [0.9, 2.88] | 6 studies · 1648 participants | Very low |
Alternating pressure (active) air surfaces vs reactive air surfaces Time to pressure ulcer development · pressure ulcer prevention Alternating pressure (active) air surfaces for preventing pressure ulcers (2021) · Cochrane | HR 2.25 [1.05, 4.83] | 1 study · 308 participants | Low |
Foam surfaces vs alternating pressure (active) air surfaces Proportion of participants developing a new pressure ulcer · pressure ulcer prevention Foam surfaces for preventing pressure ulcers (2021) · Cochrane | RR 1.59 [0.86, 2.95] | 4 studies · 2247 participants | Low |
Foam surfaces vs reactive air surfaces Support surface associated patient comfort · pressure ulcer prevention Foam surfaces for preventing pressure ulcers (2021) · Cochrane | no estimate extracted | 1 study · 72 participants | Very low |
Foam surfaces vs reactive air surfaces All reported adverse events · pressure ulcer prevention Foam surfaces for preventing pressure ulcers (2021) · Cochrane | no estimate extracted | 1 study · 72 participants | Very low |
Foam surfaces vs reactive air surfaces Health‐related quality of life · pressure ulcer prevention Foam surfaces for preventing pressure ulcers (2021) · Cochrane | no estimate extracted | NR | No studies |
Foam surfaces vs reactive air surfaces Cost‐effectiveness · pressure ulcer prevention Foam surfaces for preventing pressure ulcers (2021) · Cochrane | no estimate extracted | NR | No studies |
Foam surfaces vs reactive fibre surfaces Proportion of participants developing a new pressure ulcer · pressure ulcer prevention Foam surfaces for preventing pressure ulcers (2021) · Cochrane | RR 1.17 [0.64, 2.14] | 1 study · 68 participants | Very low |
Foam surfaces vs reactive fibre surfaces Time to pressure ulcer development · pressure ulcer prevention Foam surfaces for preventing pressure ulcers (2021) · Cochrane | no estimate extracted | NR | No studies |
Foam surfaces vs reactive fibre surfaces Support surface associated patient comfort · pressure ulcer prevention Foam surfaces for preventing pressure ulcers (2021) · Cochrane | no estimate extracted | NR | No studies |
Foam surfaces vs reactive fibre surfaces All reported adverse events · pressure ulcer prevention Foam surfaces for preventing pressure ulcers (2021) · Cochrane | no estimate extracted | NR | No studies |
Foam surfaces vs reactive fibre surfaces Health‐related quality of life · pressure ulcer prevention Foam surfaces for preventing pressure ulcers (2021) · Cochrane | no estimate extracted | NR | No studies |
Foam surfaces vs reactive fibre surfaces Cost‐effectiveness · pressure ulcer prevention Foam surfaces for preventing pressure ulcers (2021) · Cochrane | no estimate extracted | NR | No studies |
Foam surfaces vs alternating pressure (active) air surfaces Time to pressure ulcer development · pressure ulcer prevention Foam surfaces for preventing pressure ulcers (2021) · Cochrane | no estimate extracted | 2 studies · 2105 participants | Very low |
Foam surfaces vs reactive gel surfaces Proportion of participants developing a new pressure ulcer · pressure ulcer prevention Foam surfaces for preventing pressure ulcers (2021) · Cochrane | no estimate extracted | 1 study · 270 participants | Very low |
Foam surfaces vs reactive gel surfaces Time to pressure ulcer development · pressure ulcer prevention Foam surfaces for preventing pressure ulcers (2021) · Cochrane | no estimate extracted | NR | No studies |
Foam surfaces vs reactive gel surfaces Support surface associated patient comfort · pressure ulcer prevention Foam surfaces for preventing pressure ulcers (2021) · Cochrane | no estimate extracted | NR | No studies |
Foam surfaces vs reactive gel surfaces All reported adverse events · pressure ulcer prevention Foam surfaces for preventing pressure ulcers (2021) · Cochrane | no estimate extracted | NR | No studies |
Foam surfaces vs reactive gel surfaces Health‐related quality of life · pressure ulcer prevention Foam surfaces for preventing pressure ulcers (2021) · Cochrane | no estimate extracted | NR | No studies |
Foam surfaces vs reactive gel surfaces Cost‐effectiveness · pressure ulcer prevention Foam surfaces for preventing pressure ulcers (2021) · Cochrane | no estimate extracted | NR | No studies |
Foam surfaces vs reactive foam and gel surfaces Proportion of participants developing a new pressure ulcer · pressure ulcer prevention Foam surfaces for preventing pressure ulcers (2021) · Cochrane | no estimate extracted | 1 study · 182 participants | Very low |
Foam surfaces vs reactive foam and gel surfaces Time to pressure ulcer development · pressure ulcer prevention Foam surfaces for preventing pressure ulcers (2021) · Cochrane | no estimate extracted | NR | No studies |