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Table 3: Associations between T2 SI and baseline and postoperative clinical scores
Baseline Clinical Score High T2 SI (n = 9) Normal T2 SI (n = 21) P Value
MJOA 
    Mean ± SD 11.33 ± 3.43^{^a} 14.67 ± 1.85^{^a} .01^{^a}
    Median (Q1-Q3) 11 (9–15)^{^a} 15 (14–16)^{^a} 
SF-36 (MCS) 
    Mean ± SD 5.95 ± 11.47 7.24 ± 14.18 .82
    Median (Q1-Q3) 5 (−3.45–14.65) 9.2 (−4.1–17.8) 
NDI 
    Mean ± SD 42.63 ± 22.23 33.16 ± 17.6 .25
    Median (Q1-Q3) 52 (24–54) 34 (22–42) 
Nurick 
    Mean ± SD 3 ± 1.32^{^a} 1.14 ± 1.24^{^a} <.01^{^a}
    Median (Q1-Q3) 4 (2–4)^{^a} 1 (0–2)^{^a} 
SF-36 (PCS) 
    Mean ± SD 19.55 ± 12.72 12.69 ± 10.13 .15
    Median (Q1-Q3) 21.35 (14.45–29.05) 9.6 (5–23.9) 
Change in Clinical Score (following surgery) 
MJOA 
    Mean ± SD 1.86 ± 1.35 1.38 ± 1.3 .44
    Median (Q1-Q3) 2 (1–3) 1 (0.5–2) 
Nurick 
    Mean ± SD −0.86 ± 0.69 −0.25 ± 0.46 .07
    Median (Q1-Q3) −1 (−1–0) 0 (−0.5–0) 
SF-36 (MCS) 
    Mean ± SD 2.03 ± 10.24 −10.39 ± 9.9 .06
    Median (Q1-Q3) 0 (−3.6–2.5) −8.1 (−17.4–0) 
SF-36 (PCS) 
    Mean ± SD −0.3 ± 7.67 0.24 ± 5.24 .88
    Median (Q1-Q3) 0 (−5.3–1.4) 0 (−2.5–0) 
NDI 
    Mean ± SD −1 ± 27.36 −2 ± 11.2 .67
    Median (Q1-Q3) 8 (−34–18) 0 (−10–6) 
Note:—MCS indicates mental component score; PCS, physical component score.
↵a Indicates values are significant.