Table 3.

Recovery ratios and minimal clinically important difference at 1-year follow-up

PROM	PT <20° (n=64)	PT ≥20° (n=124)	P a	PI-LL <11° (n=126)	PI-LL ≥11° (n=62)	P
ODI
RR	0.57 (0.39)	0.44 (0.54)	0.379	0.51 (0.45)	0.44 (0.57)	0.693
MCID (%)	85.7	83.3	1.000	81.5	88.2	0.689
PCS-12
RR	0.16 (0.15)	0.08 (0.16)	0.112	0.13 (0.16)	0.06 (0.15)	0.124
MCID (%)	46.7	40.6	0.941	48.3	33.3	0.482
MCS-12
RR	0.16 (0.13)	0.09 (0.21)	0.166	0.12 (0.18)	0.09 (0.21)	0.612
MCID (%)	40.0	31.2	0.795	37.9	27.8	0.707
VAS back
RR	0.40 (0.64)	0.54 (0.44)	0.468	0.44 (0.57)	0.60 (0.38)	0.294
MCID (%)	57.1	53.6	1.000	55.6	53.3	1.000
VAS leg
RR	0.62 (0.36)	0.51 (0.57)	0.424	0.55 (0.54)	0.54 (0.47)	0.932
MCID (%)	50.0	57.1	0.913	51.9	60.0	0.853

^aIndependent-samples t-test for RR and Pearson Chi-squared test for MCID. SF - Short form, PCS-12 - Physical component of SF-12, MCS-12 - Mental component of SF-12, ODI - Oswestry Disability Index, VAS - Visual analog scale, VAS back - VAS back pain, VAS leg - VAS leg pain, RR - Recovery ratio, MCID - Minimal clinically important difference, PROM - Patient reported outcome measures, PT - Pelvic tilt, PI-LL - Pelvic incidence-lumbar lordosis