Table 3 Evaluation of oxidative stress parameters before and after CPAP treatment in late preterm and term group
Parameters | Late Preterm | Term | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|
Neg£ Pos Ties | Mean Rank | Sum of Rank | Z | p | Neg Pos Ties | Mean Rank | Sum of Rank | Z | p | |
Native thiol (µmol/L) | 27 | 25.83 | 697.50 | -0.077 | 0.938 | 15 | 13.90 | 208.50 | -0.195 | 0.846 |
25 | 27.22 | 680.50 | 14 | 16.18 | 226.50 | |||||
0 | 0 | |||||||||
Total thiol (µmol/L) | 28 | 26.3 | 736.50 | -0.433 | 0.665 | 17 | 13.41 | 228 | -0.227 | 0.820 |
24 | 26.73 | 641.50 | 12 | 17.25 | 207 | |||||
0 | 0 | |||||||||
Disulfide (µmol/L) | 35 | 28.07 | 982.50 | -3.331 | 0.001 | 20 | 14.50 | 270 | -1.32 | 0.245 |
15 | 19.50 | 292.50 | 9 | 12.44 | 165 | |||||
2 | 0 | |||||||||
Disulfide/Native thiol (%) | 34 | 27.31 | 928.50 | -2.181 | 0.029 | 19 | 15.68 | 256 | -1.642 | 0.083 |
18 | 24.97 | 449.50 | 10 | 11.90 | 179 | |||||
0 | 0 | |||||||||
Disulfide/Total thiol (%) | 34 | 27.66 | 940.5 | -2.290 | 0.022 | 19 | 15.19 | 240 | -1.381 | 0.187 |
18 | 24.31 | 437.5 | 10 | 12.10 | 185 | |||||
0 | 0 | |||||||||
Native thiol/Total thiol (%) | 34 | 24 | 432 | -2.341 | 0.019 | 10 | 9.60 | 96 | -2.627 | 0.009 |
18 | 27.82 | 946 | 19 | 17.84 | 339 | |||||
0 | 0 | |||||||||
TAS* (mmol Trolox equiv. /lt) | 20 | 20.68 | 413.50 | -2.509 | 0.012 | 12 | 12.67 | 152 | -1.417 | 0.157 |
32 | 30.14 | 964.5 | 17 | 16.65 | 283 | |||||
0 | 0 | |||||||||
TOSπ (µmol H2O2 equiv. /lt) | 44 | 27.38 | 1204.5 | -5.076 | < 0.001 | 23 | 16.24 | 373.50 | -3.384 | < 0.001 |
7 | 17.36 | 121.5 | 5 | 6.50 | 32.50 | |||||
1 | 1 | |||||||||
OSI¥ (AU) | 42 | 29.21 | 1227 | -4.90 | < 0.001 | 22 | 16.98 | 373.50 | -3.37 | 0.001 |
10 | 15.1 | 151 | 7 | 8.79 | 61.50 | |||||
0 | 0 | |||||||||