Table 1.

Descriptive statistics of the variables and testing for differences between the groups

Variables	Group 1 (n = 68, parities < 5)	Group 2 (n = 66, parities ≥ 5)	p
Age, mean ± SD	47.94 ± 8.07	48.15 ± 6.42	0.552*
BMI, mean ± SD	28.71 ± 3.54	30.19 ± 3.82	0.440*
Disease duration (months), mean ± SD	5.55 ± 2.67	10.54 ± 5.22	< 0.01*
VAS score, mean ± SD	6.50 ± 1.61	8.42 ± 1.34	< 0.01*
ODI score, mean ± SD	18.41 ± 7.97	29.87 ± 6.75	< 0.01*
Modic change, n (%)
None	17 (25)	4 (6.1)	< 0.05#
Type 1	37 (54.4)	30 (45.5)
Type 2	14 (20.6)	32 (48.5)
Type 3	0 (0.0)	0 (0.0)
Schmorl’s nodes, n (%)
None	46 (67.6)	26 (39.4)	< 0.0&
Yes	22 (32.4)	40 (60.6)
Sacral slope, mean ± SD	41.01 ± 8.42	39.29 ± 7.21	0.373*
Pelvic tilt, mean ± SD	15.24 ± 7.31	15.05 ± 6.08	0.906*
Pelvic incidence, mean ± SD	62.67 ± 11.17	58.90 ± 10.30	0.156*
L1-S1 lordosis angle, mean ± SD	53.36 ± 12.02	55.62 ± 12.80	0.459*
L1-L2 lordosis angle, mean ± SD	3.86 ± 2.75	4.39 ± 2.73	0.431*
L2-L3 lordosis angle, mean ± SD	7.23 ± 3.54	6.95 ± 3.91	0.757*
L3-L4 lordosis angle, mean ± SD	10.68 ± 4.41	11.23 ± 6.17	0.675*
L4-L5 lordosis angle, mean ± SD	20.27 ± 7.27	18.03 ± 6.98	0.203*
L5-S1 lordosis angle, mean ± SD	21.80 ± 7.13	21.72 ± 7.41	0.963*

ODI Oswestry Disability Index, VAS visual analog scale, BMI body mass index

^*Independent t test

^#Fisher Freeman Halton Test

^&Chi-Square test