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. Author manuscript; available in PMC: 2016 Aug 1.
Published in final edited form as: Resuscitation. 2015 Apr 25;93:150–157. doi: 10.1016/j.resuscitation.2015.04.010

Table 3a.

Adjusted logistic regression of outcome on compliance

ROSC (n=390) Survival to 24 Hours (n=383) Survival to Discharge (n=383)
aOR1 (95% CI) p aOR1 (95% CI) p aOR1 (95% CI) p
Fraction compliant (≥ 0.8) 0.69 (0.42, 1.15) 0.16 0.96 (0.56, 1.66) 0.89 0.98 (0.41, 2.35) 0.97
Rate compliant (100–120) 1.50 (0.88, 2.54) 0.13 1.07 (0.61, 1.89) 0.80 1.14 (0.51, 2.53) 0.76
Age 1–11 years 0.49 (0.28, 0.85) 0.01 0.53 (0.30, 0.94) 0.03 1.11 (0.47, 2.59) 0.82
Male 0.85 (0.52, 1.40) 0.52 0.64 (0.38, 1.08) 0.09 0.75 (0.35, 1.60) 0.46
Bystander witnessed arrest 1.66 (0.96, 2.87) 0.07 1.04 (0.59, 1.86) 0.88 3.65 (1.62, 8.25) 0.00
EMS witnessed arrest 1.89 (0.52, 6.92) 0.33 0.59 (0.16, 2.21) 0.44 0.95 (0.08, 11.02) 0.97
Shockable initial rhythm 4.58 (2.25, 9.30) <0.01 6.81 (3.26, 14.20) <0.01 13.06 (5.56, 30.69) <0.01
EMS response time (minutes) 0.95 (0.83, 1.08) 0.40 0.88 (0.79, 0.98) 0.02 0.86 (0.75, 1.00) 0.05
Bystander CPR 1.18 (0.70, 1.99) 0.54 1.01 (0.59, 1.73) 0.97 1.05 (0.49, 2.24) 0.90
Public location 1.60 (0.84, 3.03) 0.15 1.58 (0.82, 3.05) 0.17 0.88 (0.31, 2.52) 0.81
1

Odds ratio also adjusted for adult survival to hospital admission at each site as a measure of site variation in care. A sensitivity analysis that substituted an indicator of study site did not substantially alter the results.