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. 2017 Jul 6;6:74. doi: 10.1186/s13756-017-0232-x

Table 3.

Univariate analysis of LOS distributed by infectious condition

Length of stay Cases (n = 95) Controls (n = 346) Negative binomial regression
Median (IQR) Mean (SD) Median (IQR) Mean (SD) Ratio of mean duration 95% CI p-value
All patients (n = 95/441) 6.00 (3.00–15.00) 13.71 (17.24) 4.00 (2.00–7.00) 6.05 (9.61) 2.08 1.75–2.47 <0.05
 • No infections (n = 42/227) 9.50 (3.00–23.00) 14.36 (13.87) 3.00 (2.00–6.00) 5.75 (9.03) 2.48 1.91–3.21 <0.05
 • Any infection (n = 53/214) 5.00 (3.00–13.00) 13.19 (19.62) 4.00 (2.00–7.00) 6.40 (10.25) 1.58 1.26–1.98 <0.05
  - Non-severe infections (n = 31/131) 5.00 (3.00–9.00) 8.94 (19.27) 3.00 (2.00–5.00) 5.18 (10.84) 1.40 1.02–1.92 <0.05
  - Severe infections (n = 15/65) 14.00 (5.00–36.00) 21.60 (20.69) 5.00 (4.00–12.00) 8.88 (9.70) 1.86 1.33–2.62 <0.05

IQR Interquartile range, SD Standard deviation, CI Confidence interval