Table 4.

Pain visual analogue scale score at various time points

Hour of VAS score assessment	Needle group (n = 100)	Catheter group (n = 99)	P value
1	1 [1 to 2]: n = 100	1 [1 to 2]: n = 98	0.342
2	1 [1 to 2]: n = 96	1 [1 to 2]: n = 97	0.521
3	1 [1 to 2]: n = 87	1 [1 to 2]: n = 89	0.748
4	1 [1 to 2]: n = 76	1 [1 to 2]: n = 76	0.120
5	1 [1 to 2]: n = 64	2 [1 to 2]: n = 65	0.625
6	2 [1 to 2]: n = 48	2 [1 to 2]: n = 53	0.819
7	2 [1 to 2]: n = 33	1 [1 to 2]: n = 46	0.818
8	1 [1 to 2]: n = 22	1 [1 to 2]: n = 36	0.229

Values are median [IQR]. VAS, visual analogue scale.