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Egyptian Rheumatology and Rehabilitation

Table 5 Comparison of scleroderma patients with and without ILD based on Krebs von den Lungen-6 (U/ml) levels based on HRCT findings

From: Significance of serum Krebs von den Lungen-6 in systemic sclerosis

ILD

Krebs von den Lungen-6 (U/ml)

z-test

P-value

Median

IQR

25th

75th

Without ILD (n = 11/36.7%)

145.70

131.20

157.10

15.933

< 0.001**

With ILD (n = 19/63.3%)

717.40

711.00

842.50

  1. ILD interstitial lung disease
  2. Using U, Mann–Whitney test for non-parametric data “median (IQR)”
  3. **P-value < 0.001 is highly significant
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