In the correction (BMJ 2006;333:30, 1 Jul) to the article “Randomised, controlled trial of alternating pressure mattresses compared with alternating pressure overlays for the prevention of pressure ulcers: PRESSURE (pressure relieving support surfaces) trial” (BMJ 2006;3321413-5, 17 Jun), we incorrectly referred to haemoglobin levels rather than odds ratios. We should have said: “In table 4 of the full version on bmj.com (table 2 of the abridged version), the odds ratio for haemoglobin levels on admission or preoperatively should be 0.89 (0.82 to 0.97), and the corresponding P value should be 0.01.”
. 2006 Aug 12;333(7563):339.
Correction for Nixon et al
Copyright © 2006, BMJ Publishing Group Ltd.
PMCID: PMC1539039
This corrects the article "Hip fracture" on page 30.
This corrects the article "Randomised, controlled trial of alternating pressure mattresses compared with alternating pressure overlays for the prevention of pressure ulcers: PRESSURE (pressure relieving support surfaces) trial" in volume 332 on page 1413.