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Table 1 Demographic data

From: Intra-abdominal pressure measurement using the FoleyManometer does not increase the risk for urinary tract infection in critically ill patients

  Period 1 Period 2 Period 3 Period 4 Total p value (period 1 vs 4)
  Control group Modified Cheatham technique FoleyManometer FoleyManometerLV   
  2000-2001 2002-2003 2004-2005 2006-2007   
Patients (n) 2,046 1,480 1,261 1,103 5,890 -
Age (years) 66 ± 17.5 65 ± 16.2 65 ± 16.3 63 ± 18.7 65 ± 17.1 NS
SAPS-II 24.4 ± 21.5 30.1 ± 20.4 32.4 ± 18.7 34.9 ± 18.7 29.8 ± 20.4 < 0.001
ICU days 8,045 7,265 7,584 7,161 30,055 -
MV days 2,988 3,343 3,192 3,785 13,308 -
%MV (days) 37.1% 46% 42.1% 52.9% 44.32% < 0.001
IAP patients 28 (1.4%) 146 (9.9%) 422 (33.5%) 501 (45.4%) 1,097 (18.6%) < 0.001
MV patients 381 (18.6%) 404 (27.3%) 418 (33.1%) 449 (40.7%) 1,652 (28.1%) < 0.001
ICU stay (days) 4.1 ± 7.3 4.3 ± 7.6 5.1 ± 8.7 7.1 ± 16.6 5.3 ± 11 < 0.001
Predicted mortality 16.5% ± 23.8 20.5% ± 25 21.2% ± 25.6 24.3% ± 26.3 20.1% ± 25.2 < 0.001
ICU mortality 11% 12.7% 15.2% 17.4% 13.5% < 0.001
  1. Severity of illness and outcome of critically ill patients during the four time periods. IAP, intra-abdominal pressure; ICU, intensive care unit; MV mechanical ventilation; SAPS, Simplified Acute Physiology Score.