The relationship between NI rates and various extrinsic

The relationship between NI rates and various extrinsic next factors was analyzed using a chi-square test when there was a need to compare proportional data, using a level of 95% confidence interval. 4. Results 4.1. Population Characteristics We collected data of 707 admissions (6561 days of hospitalization) during the study period (Table 1). Fifty-four percent were males with a mean age of 6.9 years (range: 3 months�C15 years; SD = 4 years). The most common neoplastic disease on admission was ALL (59%). Eighty-seven percent of patients had leukopenia, 52.2% had an absolute neutrophil count of less than 500/mm3, and 58.7% had thrombocytopenia. Table 1 Demographic characteristics of study samples. 4.2. Rates of NIs Nosocomial infections were reported among 46 admissions (6.

5/100 admission episodes; 7 episodes/1000 days of hospitalization). There were 13 episodes of urinary tract infections per 1000 days of urinary catheterization, 21 episodes of pneumonia per 1000 days of endotrachial intubation, and no episodes of bacteremia among patients who had central venous catheterization. Episodes of NIs were most frequent among patients with ALL (41.3%), and patients with AML (34.8%). 4.3. Sites of NIs The most common sites of NIs were the blood stream (30.5%) and the ear/nose/throat (19.6%) (Table 2). Table 2 Types of nosocomial infections. 4.4. Causal Organisms of NIs Causal organisms of NIs were identified in 34 episodes (73.9%). The most common were gram-negative bacteria (47.1%), followed by gram-positive bacteria (29.4%), and fungi (14.7%) (Table 3).

Table 3 Causal organisms of nosocomial infections. 4.5. Procedures Related to NIs Patients who developed NIs were more likely to have had endotracheal intubation (mean duration: 10.2 days; range: 1�C15 days), urinary catheterization (mean duration: 5.8 days; range: 1�C10 days), nasogastric tube (mean duration: 4.9 days; range: 1�C17 days), and central venous catheterization (mean duration: 1.7 days; range: 1-2 days) (P < .001) (Table 4). Table 4 Comparison of procedures related to nosocomial infections. 4.6. Outcomes of NIs The mean time from admittance until time of diagnosis of an NI was 22 days (range: 2�C126 days; SD: 23 days). The majority of NIs (74%) occurred between the 2nd and the 30th day of hospitalization. Nine patients died (19.6%): 4 with ALL (44.4%), 4 with AML (44.4%), and 1 with an astrocytoma brain tumor.

Four patients (44.4%) had bacteremia, 3 (33.4%) had soft tissue infections, 1 (11.1%) had pneumonia, and 1 had both bacteremia and pneumonia. Three patients (33.4%) were infected with gram-positive bacteria, 2 (22.2%) with gram-negative bacteria, 2 (22.2%) with Cilengitide fungal organisms, and 1 patient (11.1%) was found to be infected with gram-positive bacteria and a fungal organism. 5. Discussion A total of 707 admission episodes were included in the study. Forty-six episodes of NIs were reported (the incidence of NIs was 6.

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