Open fenestration discectomy versus microscopic fenestration discectomy for lumbar disc herniation: a randomized controlled trial

Table 5 The mean differences of length of hospital stay, time of returning to daily activities and the cost of surgery between study groups

Study variables	Study group	N	Mean	SD	t-test	P-value
Length of hospital stay (days)	Group A	30	2.10	0.30	14.26	< 0.001*
Length of hospital stay (days)	Group B	30	1.06	0.25	14.26	< 0.001*
Time of returning to daily activity (days)	Group A	30	7.33	0.84	14.73	< 0.001*
Time of returning to daily activity (days)	Group B	30	4.03	0.88	14.73	< 0.001*
Cost ($)	Group A	30	1996.66	39.24	−85.95	< 0.001*
Cost ($)	Group B	30	3003.33	50.74	−85.95	< 0.001*

ISSN: 1471-2474