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Table 1 Summary statistics for the study data

From: Assessing the role of undetected colonization and isolation precautions in reducing Methicillin-Resistant Staphylococcus aureustransmission in intensive care units

Warda Number of patients Length of stay Mean(SD) Percent in contact precautionb Number of swab tests per person
Mean (SD)
Number of MRSA+ swab tests per person
Mean (SD)
Number of swab tests taken after first positivec
M1 1293 3.4 (4.7) 11.4 1.4 (0.8) 0.13 (0.5) 73
M2 1018 4.4 (6.4) 19.1 1.5 (0.9) 0.20 (0.61) 45
GS1 1227 3.4 (5.2) 12.4 1.3 (0.7) 0.14 (0.5) 63
GS2 1030 4.0 (8.3) 10.7 1.4 (0.9) 0.14 (0.5) 99
SS1 706 5.8 (11.4) 12.5 1.3 (0.9) 0.10 (0.5) 100
SS2 888 4.8 (9.7) 7.5 1.4 (1.1) 0.11 (0.6) 111
SS3 1097 3.8 (6.4) 6.0 1.2 (0.7) 0.05 (0.3) 51
SS4 1263 3.6 (5.2) 5.1 1.4 (0.8) 0.07 (0.3) 42
  1. a Here M denotes Medical or Cardiac ICU, GS denotes General Surgical ICU, including trauma and burn patients, SS denotes Specialty Surgical ICU.
  2. b Includes isolation indicators other than MRSA.
  3. c The total number of swab tests taken after the first MRSA-positive test.