Support surfaces for treating pressure ulcers

Elizabeth McInnes; Jo C Dumville; Asmara Jammali‐Blasi; Sally EM Bell‐Syer

doi:10.1002/14651858.CD009490

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Figure 1

Risk of bias graph: review authors' judgements about each risk of bias item presented as percentages across all included studies.

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Figure 2

Risk of bias summary: review authors' judgements about each risk of bias item for each included study.

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Analysis 1.1

Comparison 1 Water mattress overlay vs low‐tech mattress, Outcome 1 Pressure ulcer healing.

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Analysis 2.1

Comparison 2 Low‐air‐loss vs foam mattress overlay, Outcome 1 Pressure ulcers completely healed.

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Analysis 3.1

Comparison 3 Alternating‐pressure mattress vs alternating‐pressure mattress, Outcome 1 Ulcers completely healed.

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Analysis 3.2

Comparison 3 Alternating‐pressure mattress vs alternating‐pressure mattress, Outcome 2 Ulcers completely healed.

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Analysis 3.3

Comparison 3 Alternating‐pressure mattress vs alternating‐pressure mattress, Outcome 3 Decrease in pressure ulcer size.

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Analysis 4.1

Comparison 4 Alternating‐pressure mattress vs alternating‐pressure mattress overlay, Outcome 1 Pressure ulcer improvement.

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Analysis 4.2

Comparison 4 Alternating‐pressure mattress vs alternating‐pressure mattress overlay, Outcome 2 Pressure ulcer healing.

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Analysis 5.1

Comparison 5 Alternating‐pressure mattress vs air‐filled devices, Outcome 1 Proportion of patients with healed pressure ulcer.

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Analysis 6.1

Comparison 6 Alternating‐pressure cushion vs dry flotation cushion, Outcome 1 Pressure ulcers completely healed.

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Comparison 1. Water mattress overlay vs low‐tech mattress

Outcome or subgroup title	No. of studies	No. of participants	Statistical method	Effect size
1 Pressure ulcer healing Show forest plot	1	120	Risk Ratio (M‐H, Fixed, 95% CI)	0.93 [0.63, 1.37]

Comparison 1. Water mattress overlay vs low‐tech mattress

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Comparison 2. Low‐air‐loss vs foam mattress overlay

Outcome or subgroup title	No. of studies	No. of participants	Statistical method	Effect size
1 Pressure ulcers completely healed Show forest plot	1	84	Risk Ratio (M‐H, Fixed, 95% CI)	1.30 [0.87, 1.96]

Comparison 2. Low‐air‐loss vs foam mattress overlay

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Comparison 3. Alternating‐pressure mattress vs alternating‐pressure mattress

Outcome or subgroup title	No. of studies	No. of participants	Statistical method	Effect size
1 Ulcers completely healed Show forest plot	1	30	Risk Ratio (M‐H, Fixed, 95% CI)	0.57 [0.26, 1.27]

2 Ulcers completely healed Show forest plot	1	141	Risk Ratio (M‐H, Fixed, 95% CI)	0.99 [0.90, 1.09]

3 Decrease in pressure ulcer size Show forest plot	1	30	Risk Ratio (M‐H, Fixed, 95% CI)	0.58 [0.21, 1.65]

Comparison 3. Alternating‐pressure mattress vs alternating‐pressure mattress

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Comparison 4. Alternating‐pressure mattress vs alternating‐pressure mattress overlay

Outcome or subgroup title	No. of studies	No. of participants	Statistical method	Effect size
1 Pressure ulcer improvement Show forest plot	1	158	Risk Ratio (M‐H, Fixed, 95% CI)	0.97 [0.80, 1.17]

2 Pressure ulcer healing Show forest plot	1	113	Risk Ratio (M‐H, Fixed, 95% CI)	0.96 [0.58, 1.60]

Comparison 4. Alternating‐pressure mattress vs alternating‐pressure mattress overlay

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Comparison 5. Alternating‐pressure mattress vs air‐filled devices

Outcome or subgroup title	No. of studies	No. of participants	Statistical method	Effect size
1 Proportion of patients with healed pressure ulcer Show forest plot	1	60	Risk Ratio (M‐H, Fixed, 95% CI)	5.35 [0.70, 40.84]

Comparison 5. Alternating‐pressure mattress vs air‐filled devices

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Comparison 6. Alternating‐pressure cushion vs dry flotation cushion

Outcome or subgroup title	No. of studies	No. of participants	Statistical method	Effect size
1 Pressure ulcers completely healed Show forest plot	1	25	Risk Ratio (M‐H, Fixed, 95% CI)	0.47 [0.14, 1.56]

Comparison 6. Alternating‐pressure cushion vs dry flotation cushion

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