Table 3.

Cost of endometrial cancer-related outpatient and ER visits after operation

Variable	Total (outpatients, n=4,759; ER, n=218)	RS (outpatients, n=296; ER, n=22)	LS (outpatients, n=3,079; ER, n=124)	OS (outpatients, n=1,384; ER, n=72)	p-value	p-value
						RS vs. LS	RS vs. OS	LS vs. OS
No. of outpatient visits (range)	3.2 (1–22)	2.9 (1–13)	2.9 (1–22)	3.8 (1–21)	< 0.001	> 0.99	< 0.001	< 0.001
Cost of outpatient visits (USD)	399.03±754.97	298.00±617.42	348.66±689.38	532.69±893.61	< 0.001	0.802	< 0.001	< 0.001
Amount paid by payers	20.40±39.70	14.95±30.87	18.06±37.44	26.77±45.23	< 0.001	0.590	< 0.001	< 0.001
Amount paid by insurers	378.63±718.08	283.05±586.61	330.60±655.50	505.92±850.34	< 0.001	0.821	< 0.001	< 0.001
No. of ER visits (range)	1.1 (1–4)	1.1 (1–2)	1.1 (1–3)	1.1 (1–4)	0.857	> 0.99	> 0.99	> 0.99
Cost of ER visits (USD)	1,159.58±2,164.69	633.14±854.70	781.32±1,030.79	1,974.44±3,160.78	< 0.001	> 0.99	0.027	< 0.001
Amount paid by payers	90.43±160.32	74.89±164.41	66.56±108.84	136.43±208.83	0.011	> 0.99	0.330	0.009
Amount paid by insurers	1,069.08±2,025.52	558.25±714.09	714.65±944.06	1,838.02±2,968.99	< 0.001	> 0.99	0.023	< 0.001

Values are presented as mean (range) or mean±SD. ER, emergent room; LS, laparoscopic surgery; OS, open surgery; RS, robotic surgery; SD, standard deviation; USD, U.S. dollar.