Table 5.
The comparison of laboratory parameters between two analyzed periods
| Variable | Period (year) | n | C (25. to 75. P) | Z | P |
|---|---|---|---|---|---|
| Gestational age (weeks) | ≤ 1990 | 56 | 35 (30–38) | −0.338 | 0.735 |
| > 1990 | 289 | 35 (31–37) | |||
| Hb (g/L) | ≤ 1990 | 23 | 92.0 (78.0–119.0) | −2.448 | 0.014 |
| > 1990 | 191 | 82.0 (62.0–100.0) | |||
| Plt (×109) | ≤ 1990 | 17 | 50.0 (40.0–80.0) | −1.024 | 0.306 |
| > 1990 | 260 | 62.5 (44.5–80.0) | |||
| AST (U/L) | ≤ 1990 | 7 | 1011.0 (105.0–1235.0) | −0.315 | 0.753 |
| > 1990 | 235 | 562.0 (247.0–1266.0) | |||
| ALT (U/L) | ≤ 1990 | 8 | 560.5 (247.0–1470.0) | −0.307 | 0.759 |
| > 1990 | 215 | 530.0 (245.0–1286.0) | |||
| LDH (U/L) | ≤ 1990 | 2 | 1160 (304.0–2016.0) | −0.656 | 0.512 |
| > 1990 | 133 | 1021.0 (642.0–2220.0) | |||
| Systolic blood pressure (mmHg) | ≤ 1990 | 53 | 180 (160–214) | −3.025 | 0.002 |
| > 1990 | 186 | 170 (150–185) | |||
| Diastolic blood pressure (mmHg) | ≤ 1990 | 53 | 110 (100–126) | −4.307 | < 0.001 |
| > 1990 | 186 | 100 (95–110) |
C—median; 25. P. to 75. P—interquartile range; Z—the value of Mann–Whitney test; P—statistical probability