Table II: Characteristics of patients, including device use and nosocomial infection prevalence No. of patients % of patients No. of infections Prevalence of infections (95% CI) Male 12802 47.5 1043 8.1 (7.7‐8.6) Female 14133 52.5 891 6.3 (5.9‐6.7) Age (years) 1‐39 4271 15.9 147 3.4 (2.9‐4.0) 40‐59 5660 21.0 360 6.4 (5.8‐7.0) ≥60 17006 63.1 1427 8.4 (8.0‐8.8) Specialty Anaesthetics 87 0.3 16 18.4 (11.6‐27.8) Cardiology 3116 11.6 118 3.8 (3.2‐4.5) Cardiothoracic surgery 782 2.9 107 13.7 (11.5‐16.3) Dermatology 101 0.4 5 5.0 (2.1‐11.1) Ear/Nose/Throat 454 1.7 21 4.6 (3.0‐7.0) Haematology 324 1.2 37 11.4 (8.4‐15.3) Internal medicine 5081 18.9 313 6.2 (5.5‐6.9) Neurology 2279 8.5 172 7.5 (6.5‐8.7) Neurosurgery 595 2.2 57 9.6 (7.5‐12.2) Obstetrics & gynecology 1658 6.2 29 1.7 (1.2‐2.5) Ophthalmology 60 0.2 0 0.0 (0.0‐6.0) Oncology 484 1.8 37 7.6 (5.6‐10.4) Orthopedics 2174 8.1 117 5.4 (4.5‐6.4) Paediatrics 778 2.9 29 3.7 (2.6‐5.3) Plastic surgery 254 0.9 13 5.1 (3.0‐8.6) Respiratory 2571 9.5 84 3.3 (2.6‐4.0) Surgery 4692 17.4 661 14.1 (13.1‐15.1) Trauma 216 0.8 24 11.1 (7.6‐16.0) Urology 860 3.2 48 5.6 (4.2‐7.3) Unknown/different 364 1.4 46 12.6 (9.6‐16.4) Stay at ICU on survey day ICU 1342 5.0 342 25.5 (23.2‐27.9) not in ICU 25570 95.0 1590 6.2 (5.9‐6.5) Hospital status University hospital 5394 20.0 488 9.0 (8.3‐9.8) Not university hospital 21543 80.0 1446 6.7 (6.4‐7.1) Hospital size (mean of all periods) ≤200 patients in survey 3697 13.7 185 5.0 (4.3‐5.8) 200‐400 patients 15447 57.3 1136 7.4 (7.0‐7.8) > 400 patients 7793 28.9 613 7.9 (7.3‐8.5) Surgical interventionb Surgery 9671 36.0 1190 12.3 (11.7‐13.0) No surgery 17216 63.9 743 4.3 (4.0‐4.6) Antibiotic use on survey dayc Antibiotics 8318 30.9 1398 16.8 (16.0‐17.6) No antibiotics 18580 69.1 535 2.9 (2.6‐3.1) Nosocomial infection at admissiond 887 3.3 132 14.9 (12.7‐17.4) Central venous catheter 1878 7.0 448 23.9 (22.0‐25.8) Peripheral intravenous catheter 11882 44.1 952 8.0 (7.5‐8.5) Arterial catheter 968 3.6 287 29.6 (26.9‐32.6) Invasive ventilation 619 2.3 232 37.5 (33.8‐41.4) Urinary catheter 5585 20.7 873 15.6 (14.7‐16.6) Suprapubic catheter 325 1.2 34 10.5 (7.6‐14.3) Intra‐ or extraventricular drain 230 0.9 31 13.5 (9.7‐18.5) Epidural catheter 421 1.6 29 6.9 (4.8‐9.7) 96 Chapter 5
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