table 3. Change in Nurse Contamination During 120 Shifts in the ASCOT Trial: Overall Colony Forming Units (CFUs) Control (N=40), Median CFU (IQR)


Before


All sites Sleeve Pocket


After ∆ Before


Scrub 1 (N=40), Median CFU (Range)a After


Midriff/abdomen 21.5 (9.0–68.5)


53.0 (18.0–113.0) 25.0 (−1.0 to 62.5) 33.0 (15.5–55.5) 50.0 (20.0–84.0) 17.5 (−14.0 to 51.0) 32.0 (19.0–90.5) 70.0 (27.0–122.0) 25.0 (−3.0 to 75.0) 53.0 (26.0–96.0)


∆


59.5 (29.0–111.5) 17.0 (−23.0 to 61.0) 49.0 (18.5–79.0)


−0.5 (−46.5 to 40.0)


Before


Scrub 2 (n=40), Median CFU (Range)b After


40.5 (18.5–67.5) 46.0 (24.0–97.5)


∆


88.5 (34.0–189.0) 199.0 (95.5–384.5) 61.5 (−3.0 to 191.0) 116.0 (60.5–234.5) 190.5 (105.0–517.0) 73 (−107.0 to 194.0) 167.5 (77.0–267.5) 226.5 (95.5–503.5) 54.5 (−60.0 to 215.0) 27.5 (7.5–46.5) 21.5 (9.0–59.0)


50.5 (26.5–138.5) 17.0 (−42.5 to 54.5) 50.0 (22.0–110.0) 59.5 (25.5–113.0) 4.0 (−34.5 to 41.5)


NOTE. IQR, interquartile range. aScrubs contained a complex element compound with embedded silver-alloy. bScrubs impregnated with an organosilane-based quaternary ammonium and a hydrophobic fluoroacrylate copolymer emulsion.


44.0 (20.0–157.0) 9.0 (−18.5 to 109.0) 48.0 (25.0–109.0) −1.0 (−40.0 to 25.5)


ascot trial: clothing to prevent hcp contamination 1151


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