Table 4.

Analysis of hospital stay before and after implementation of ERP

	Before ERP(n = 100)	After ERP(n = 100)	p-value
Primary Hospital stay
Mean (+/− SD)	3.89 (+/− 2.3)	3.15 (+/− 1.97)	0.002
Median (Min/Max)	3 (1/ 14)	2.5 (0 / 11)
Hospital stay / Surgical approaches
Minimally Invasive Techniques	n = 88	n = 87
Mean (+/− SD)	3.33 (+/− 1.58)	2.67 (+/− 1.29)	0.003
Median (Min/Max)	3 (1 / 9)	2 (1 / 9)
Conventional laparoscopy	n = 53	n = 53
Mean (+/− SD)	2.86 (+/− 0.97)	2.42 (+/− 0.95)	0.022
Median (Min/Max)	3 (1 / 6)	2 (1 / 6)
Robotically assisted laparoscopy	n = 35	n = 34
Mean (+/− SD)	4.1 (+/− 2.01)	3.1 (+/− 1.6)	0.028
Median (Min/Max)	4 (1 / 9)	3 (0 / 9)
Open surgery	n = 12	n = 13
Mean (+/− SD)	8 (+/− 2.63)	6.38 (+/− 2.6)	0.14
Median (Min/Max)	8 (4 / 14)	6 (3 / 11)
Hospital Stay
≤ 2 days	24	45	0.002
> 2 days	76	55