Table 5.

Differences in cost and length of stay for tube and line events (reference: without event).

Difference in cost
	Multivariable Linear Regression			Propensity Score Matching
Day	Estimate	SE	p-value	Estimate	SE	p-value
1	4542.6	696.2	<0.001 ***	3635.6	1724.2	0.037 *
2	2240.7	523.4	<0.001 ***	661.1	1077.1	0.540
3	5674.0	557.8	<0.001 ***	6089.3	1713.3	<0.001 ***
4	4444.0	668.1	<0.001 ***	4338.2	1455.5	0.003 **
5	5971.5	7434.0	<0.001 ***	7615.6	1499.9	<0.001 ***
6	5271.5	852.3	<0.001 ***	5412.0	1340.1	<0.001 ***
7	4904.4	1017.8	<0.001 ***	4270.0	1688.5	0.013 *
8	7931.8	1273.7	<0.001 ***	7938.6	2887.5	0.007 **
9	4274.4	1162.5	<0.001 ***	6694.3	1577.1	<0.001 ***
10	5800.8	1330.0	<0.001 ***	5261.5	2161.1	0.016 *
11	2991.8	1599.4	0.061	4146.0	2402.0	0.088
12	5280.6	1618.6	0.001 **	5517.8	3064.2	0.075
13	6325.1	1612.8	<0.001 ***	7702.8	2409.3	0.002 **
14	5332.0	1739.4	0.002 **	5330.3	2470.4	0.034 *
Difference in length of stay
	Multivariable Linear Regression			Propensity Score Matching
Day	Estimate	SE	p-value	Estimate	SE	p-value
1	8.5	1.6	<0.001 ***	5.5	3.2	0.094
2	7.9	1.2	<0.001 ***	5.3	2.7	0.051
3	11.0	1.3	<0.001 ***	13.3	2.8	<0.001 ***
4	8.2	1.5	<0.001 ***	8.9	3.3	0.008 **
5	8.3	1.7	<0.001 ***	11.2	2.2	<0.001 ***
6	10.6	1.9	<0.001 ***	11.8	3.2	<0.001 ***
7	9.4	2.3	<0.001 ***	6.3	4.3	0.147
8	11.5	2.9	<0.001 ***	11.6	4.4	0.010 *
9	13.5	2.6	<0.001 ***	19.8	4.1	<0.001 ***
10	7.6	3.0	0.011 *	7.5	4.1	0.066
11	1.3	3.6	0.726	2.7	3.6	0.464
12	8.6	3.6	0.018 *	10.7	5.2	0.041 *
13	10.9	3.6	0.003 **	13.0	4.7	0.007 **
14	8.7	3.9	0.025	10.9	5.2	0.039 *

* p < 0.05; ** p < 0.01; *** p < 0.001.