Table 5 Comparison of the severity of fatty liver and liver fibrosis between elderly patients with localized-OPLL and diffuse-OPLL.

From: Close association between non-alcoholic fatty liver disease and ossification of the posterior longitudinal ligament of the spine

Variable

Localized-OPLL (n = 10)

Diffuse-OPLL (n = 25)

P-value

L/S ratio

1.16 (0.77–1.60)

1.22 (0.37–1.67)

0.627

L/S ratio < 1.2 (%)

50.0

40.0

0.711

L/S ratio ≤ 1.0 (%)

30.0

12.0

0.321

FIB-4 index

1.67 ± 0.37

2.29 ± 1.08

0.048

FIB-4 index < 1.95 (%)

80.0

44.0

0.027

FIB-4 index > 2.67 (%)

0

20.0

1.000

  1. Data are shown as mean ± standard deviation for normally distributed variables and median (minimum–maximum) for non-normally distributed variables, and as the percentage. Patients were divided into two groups according to the OPLL type. Fatty liver was defined as an L/S ratio < 1.2. Severe fatty liver was defined as an L/S ratio ≤ 1.0. A low risk of advanced liver fibrosis was defined as an FIB-4 index < 1.95. A high risk of advanced liver fibrosis was defined as an FIB-4 index > 2.67.
  2. OPLL, ossification of the posterior longitudinal ligament; L/S, liver-to-spleen; FIB-4, fibrosis index based on four factors.
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