. 2019 Aug 8;49(6):1185–1191. doi: 10.3906/sag-1812-55

Table 2.

Comparison of the VAS, ROM, and NDI values before and after surgery.

VAS (0–10)	BS	30 min	4 h	12 h	24 h	7 days	Overall	P1 (Pa, Pb, Pc)
Group 1	0.29 ± 0.87	2.94 ± 2.96	2.32 ± 2.67	1.74 ± 2.15	1.38 ± 1.74	0.50 ± 0.90	1.53±1.52	0.006, < 0.001, 0.838
Group 2	1.44 ± 2.06	4.03 ± 3.05	3.68 ± 3.01	2.82 ± 2.09	2.03 ± 1.94	1.41 ± 1.98	2.57±1.52	0.006, < 0.001, 0.838
Overall	0.87±1.58	3.49±3.01	3±2.84	2.28±2.12	1.71±1.85	0.96±1.56
ROM	Extension	Flexion	Right lateral flexion	Left lateral flexion	Right rotation	Left rotation
Group 1	33.14 ± 21.18	14.50 ± 20.19	15.47 ± 20.55	15.27 ± 18.50	22.32 ± 21.52	20.98 ± 18.59
Group 2	26.00 ± 24.03	17.60 ± 16.78	13.40 ± 22.40	15.59 ± 22.66	19.56 ± 20.29	20.32 ± 20.08
P2	0.152	0.510	0.871	0.474	0.662	0.417
NDI (0%–100%)	BS	7th day	BS to 7th day					P3
Group 1	9.23 ± 6.66	9.87 ± 6.33	0.64 ± 7.14					0.486
Group 2	16.01 ± 14.44	19.14 ± 15.55	3.12 ± 14.51

VAS: Visual analog scale, ROM: range of motion, NDI: neck disability index. Values are mean units ± SD. BS: Before surgery, AS: after surgery (30 min, 4 h, 12 h, 24 h, and 7 days). P1: Comparison of the changes from the BS values to the AS values between the 2 groups (Pa: comparison between groups, Pb: comparison between time points, Pc: interaction between group and time). P2: Comparison of the percentage changes of the ROM values from the BS values to the 24-h AS values between the 2 groups [((BS-AS)/ BS) × 100]. P3: Comparison of the percentage changes of the NDI% values from the BS values to the 7th day AS values between the 2 groups.