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Table 3 Description of the study population: frequencies of intrinsic and extrinsic factors recorded

From: Surveillance of nosocomial infections in the Yaounde University Teaching Hospital, Cameroon

Characteristics Neonatology ICU Gynaecology Surgery Total
Number (total = 54) % Number (total = 51) % Number (total = 71) % Number (total = 131) % Number (total = 307) %
Intrinsic factors
 Anaemia NA* NA* 6 12 0 NA 1 0.8 7 2.3
 Diabetes NA* NA* 8 16 1 1.4 7 5.5 16 5.3
 Hypertension NA* NA* 23 46 2 2.9 9 7.0 34 11.2
 Obesity NA* NA* 3 6 3 4.3 1 0.8 7 2.3
 Under nutrition NA* NA* 2 4 0 NA 0 NA 2 0.7
 HIV + status NA* NA* 13 25.5 4 5.6 9 6.9 26 7.9
Extrinsic factors
 Central venous catheter 20 37 13 25.5 2 2.8 0 NA 35 11.4
 Peripheral venous catheter 51 94.4 50 98.0 68 95.8 123 93.9 292 95.1
 Urinary catheter 1 1.9 15 29.4 20 28.2 11 8.4 47 15.3
 Nasogastric tube 24 44.4 21 41.2 0 NA 9 6.9 54 17.6
 Intubation 1 1.9 0 NA 0 NA 0 NA 1 0.3
 Surgery 0 NA 4 7.8 48 67.6 79 60.3 131 42.7
 Bedsores 0 NA 12 24.0 0 NA 2 1.5 14 4.6
  1. NA not applicable (impossible to estimate the relative frequency when the absolute one is zero), NA* the variable was not assessed in neonates
  2. Italic values indicate the total value (in all the services).