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Table 4 Comparison between patients’ subgroups 1 and 2 as regards hyaluronic acid (HA) ng/ml in the three visits

From: Assessment of hyaluronic acid in COPD patients as a prognostic biomarker

Hyaluronic acid (HA) ng/ml

Groups

Test of sig

Subgroup 1 (no. = 30)

Subgroup 2 (no. = 30)

U

p-value

Visit 1

269.33 ± 42.58

290 ± 43.07

336.5

0.007*

Visit 2

221 ± 40.97

248 ± 42.21

296

0.020*

Visit 3

163.33 ± 29.63

190.67 ± 31.28

215

0.000**

P1

0.000**

0.000**

  

P2

0.000**

0.000**

  

P3

0.000**

0.000**

  
  1. U Mann–Whitney U, P1 visit 1 vs visit 2, P2 visit 1 vs visit 3, P3 visit 2 vs visit 3. *p-value < 0.05 is significant. **p-value ≤ 0.001 strong significant