TABLE 3

OR of Developing HAP by Injury Region and Age Group

0–5 y6–10 y11–15 y16–18 y
OR (95% CI)aOR (95% CI)aOR (95% CI)aOR (95% CI)a
Region of injury
 Isolated head and neckReferenceReferenceReferenceReference
 Multisite without head and neck1.88 (0.92–3.86)0.71 (0.23–2.20)1.97 (1.08–3.60)b1.12 (0.79–1.57)
 Multisite with head and neck1.23 (0.82–1.86)1.11 (0.63–1.97)2.04 (1.34–3.10)b1.47 (1.14–1.89)b
Mechanism of injury
 MVCReferenceReferenceReferenceReference
 Pulmonary0.44 (0.10–1.90)4.37 (0.81–23.69)3.78 (1.26–11.3)b2.56 (1.01–6.51)b
 Fall0.96 (0.58–1.60)0.72 (0.31–1.72)1.87 (1.10–3.18)b0.71 (0.46–1.08)
 Firearm0.19 (0.02–1.99)1.85 (1.00–3.42)b1.39 (1.02–1.88)b
 Blunt trauma1.09 (0.53–2.25)0.65 (0.19–2.16)1.73 (0.87–3.42)0.79 (0.46–1.36)
 Other/unspecified0.80 (0.48–1.18)0.89 (0.47–1.69)0.93 (0.62–1.40)0.95 (0.72–1.25)
Sex
 MaleReferenceReferenceReferenceReference
 Female0.97 (0.68–1.39)1.05 (0.66–1.67)1.08 (0.78–1.50)0.75 (0.62–0.92)b
ISS
 <16ReferenceReferenceReferenceReference
 ≥163.60 (2.19–5.92)b7.01 (3.29–14.9)b9.44 (5.44–16.4)b4.24 (3.23–5.58)b
GCS score
 <84.93 (3.26–7.45)b4.70 (2.81–7.86)b3.36 (2.36–4.78)b2.91 (2.39–3.54)b
 ≥8ReferenceReferenceReferenceReference
Ventilation days1.01 (0.98–1.04)1.01 (0.96–1.06)1.07 (1.04–1.10)b1.07 (1.05–1.09)b
Length of stay (d)1.00 (0.98–1.02)1.02 (0.99–1.04)1.01 (0.99–1.03)1.02 (1.02–1.03)b
Intensive care days1.06 (1.02–1.10)b1.05 (1.00–1.09)b1.03 (0.99–1.06)1.06 (1.04–1.08)b
Comorbid conditions
 0ReferenceReferenceReferenceReference
 1+2.28 (1.42–3.66)b2.04 (1.17–3.56)b1.27 (0.85–1.89)1.37 (1.11–1.68)b
  • —, no data.

  • a Models mutually adjusted for all variables shown.

  • b P ≤ .05.