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Table 2: Descriptive statistics showing quartiles, median, mean, SD, SEM, confidence intervals, and mean ranks for each dataset
VAS Pre VAS 2–4 Weeks VAS 20–24 Weeks ODI Pre ODI 2–4 Weeks ODI 20–24 Weeks
No. of values 61 61 61 44 44 44
Minimum 2 0 0 20 4 2
25% Percentile 6 1 2 36 16 18
Median 7 2 2 46 24 24
75% Percentile 8 3 3 58 34 35.5
Maximum 10 6 6 92 64 60
Mean 6.869 2.098 2.443 48.5 25.64 25.86
SD 1.737 1.338 1.522 16.37 13.78 13.18
SEM 0.2224 0.1713 0.1949 2.469 2.077 1.988
Lower 95% CI 6.424 1.756 2.053 43.52 21.45 21.86
Upper 95% CI 7.314 2.441 2.833 53.48 29.83 29.87
Mean ranks 90.58 32.42 33.2 60.56 28.44 28.27
Note:—SEM indicates standard error of the mean.

	VAS Pre	VAS 2–4 Weeks	VAS 20–24 Weeks	ODI Pre	ODI 2–4 Weeks	ODI 20–24 Weeks
No. of values	61	61	61	44	44	44
Minimum	2	0	0	20	4	2
25% Percentile	6	1	2	36	16	18
Median	7	2	2	46	24	24
75% Percentile	8	3	3	58	34	35.5
Maximum	10	6	6	92	64	60
Mean	6.869	2.098	2.443	48.5	25.64	25.86
SD	1.737	1.338	1.522	16.37	13.78	13.18
SEM	0.2224	0.1713	0.1949	2.469	2.077	1.988
Lower 95% CI	6.424	1.756	2.053	43.52	21.45	21.86
Upper 95% CI	7.314	2.441	2.833	53.48	29.83	29.87
Mean ranks	90.58	32.42	33.2	60.56	28.44	28.27