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. 2016 May 23;5:11. doi: 10.1186/s13741-016-0038-z

Table 5.

Poisson regression analysis of the risk factors in the occurrence of postanesthesia falls

Risk factor Regression coefficient 95 % CI P value
Intercept −34.434 (−36.158, −32.711) <0.001
Gender
 Male Ref Ref NA
 Female −0.012 (−1.303, 1.280) 0.986
Age
 ≦30 years old Ref Ref NA
 31–50 years old 23.799 (21.489, 26.108) <0.001
 51–70 years old 25.408 (23.982, 26.834) <0.001
 >70 years old 25.555 (25.555, 25.555) NA
ASA class
 I–II Ref Ref NA
 III–IV −0.132 (−1.498, 1.235) 0.850
Anesthesia technique
 General anesthesia Ref Ref NA
 Intravenous sedation anesthesia 2.364 (0.853, 3.875) 0.002
 Regional anesthesia 2.828 (1.267, 4.390) <0.001

Reference groups were chosen according to the subgroup with highest proportion (i.e., male group, ASA class, and general anesthesia) or the first subgroup in the analysis

CI confidence interval, Ref reference value, NA not applicable