Table 2:

Logistic Regression Predicting Surgery Prior Before and After Propensity Score Weighted Matching

	Unweighted Logistic Regression			Weighted Logistic Regression
	Odds Ratio	95% CI	p-value	Odds Ratio	95% CI	p-value
Age	1.08	0.98 – 1.19	0.1	1.03	0.93 – 1.15	0.6
Sex	0.97	0.56 – 1.66	0.9	1.06	0.58 – 1.95	0.9
Time to Presentation
0–6 hrs	Ref	***	***	Ref	***	***
7–12 hrs	2.15	0.95 – 4.86	0.07	0.94	0.40 – 2.21	0.9
12–24 hrs	2.65	1.09 – 6.42	0.03	0.89	0.36 – 2.20	0.8
24–48 hrs	5.44	1.35 – 21.96	0.02	0.95	0.21 – 4.25	1.0
>48 hrs	2.51	1.20 – 5.28	0.02	0.83	0.37 – 1.90	0.7
Percent TBSA	0.96	0.94 – 0.98	0.001	1.02	0.99 – 1.05	0.2
Mechanism
Scald – Water	Ref	***	***	Ref	***	***
Scald – Grease	1.30	0.59 – 2.84	0.5	0.81	0.34 – 1.93	0.6
Flame	3.57	1.89 – 6.72	<0.001	0.78	0.41 – 1.50	0.5
Traditional Medicine	0.75	0.38 – 1.50	0.4	1.94	0.89 – 4.20	0.09
Antibiotics Prescribed	0.72	7.27 – 25.19	0.3	1.26	0.65 – 2.43	0.5
Transfused	13.53	0.04 – 0.25	<0.001	0.97	0.52 – 1.80	0.9