Table 2.
Plasma vitamin D levels of patients in the sinus rhythm (SR) and postoperative atrial fibrillation (POAF) groups, immediately before cardiac surgery (preoperative) and on the third postoperative day (postoperative)
(Medians and ranges)
| Preoperative | Postoperative | ||||
|---|---|---|---|---|---|
| Median | Range | Median | Range | P* | |
| SR group (n 52) | |||||
| 25(OH)D2 (nmol/l) | 0·8 | 0·0–4·4 | 0·75 | 0·0–3·2 | 0·003 |
| 25(OH)D3 (nmol/l) | 37·8 | 7·4–89·1 | 29·4 | 7·6–71·3 | <0·001 |
| Total 25(OH)D (nmol/l) | 39·3 | 8·1–90·5 | 30·5 | 8·6–72·2 | <0·001 |
| POAF group (n 66) | |||||
| 25(OH)D2 (nmol/l) | 1·3† | 0·0–20·8 | 1·0† | 0·0–13·2 | <0·001 |
| 25(OH)D3 (nmol/l) | 51·6 | 8·6–83·5 | 37·7 | 7·3–76·0 | <0·001 |
| Total 25(OH)D (nmol/l) | 52·4 | 8·6–84·9 | 38·3 | 7·3–77·3 | <0·001 |
25(OH)D, 25-hydroxyvitamin D.
*
Compared with preoperative 25(OH)D2, 25(OH)D3 or total 25(OH)D levels (Wilcoxon signed-rank test).
†
Median value was significantly different from that of the SR group (P < 0·05; Mann–Whitney test).