Table 6.
Changes of 25OHD levels (ng/ml) over time. Intra-individual analysis of cases with serial measurements
| Time point | Measures | Results per visit | Results at baseline | Results per visit | Changes from baseline |
|---|---|---|---|---|---|
| preoperative | n | 83 | |||
| Mean (SD) | 21.21 (12.29) | ||||
| Median (Q1, Q3) | 18.20 (12.30, 28.70) | ||||
| Immediately p/o | n | 84 | 57 | 57 | 57 |
| Mean (SD) | 19.48 (11.58) | 21.28 (13.22) | 19.33 (12.08) | -1.95 (3.40) | |
| Median (Q1, Q3) | 16.70 (10.95, 25.85) | 17.00 (12.30, 27.60) | 15.50 (10.90, 24.10) | -1.10 (-4.00, 0.10) | |
| p-valuea | 0.3258 | ||||
| 3 mon p/o | n | 78 | 44 | 44 | 44 |
| Mean (SD) | 21.12 (18.22) | 20.93 (10.73) | 19.37 (9.33) | -1.56 (7.51) | |
| Median (Q1, Q3) | 16.85 (12.10, 24.40) | 18.45 (14.60, 28.15) | 17.90 (12.00, 24.50) | 0.70 (-6.95, 3.75) | |
| p-valuea | 0.5482 | ||||
| 6 mon p/o | n | 39 | 17 | 17 | 17 |
| Mean (SD) | 16.28 (8.14) | 23.79 (9.94) | 16.58 (7.62) | -7.21 (10.90) | |
| Median (Q1, Q3) | 15.40 (9.20, 21.60) | 24.00 (16.00, 28.50) | 15.90 (9.80, 20.40) | -8.20 (-15.20, 0.50) | |
| p-valuea | 0.0497 | ||||
| p-valueb | 0.0122 |
p/o postoperatively, mon months, SD standard deviation, Q1 first quartile, Q3 third quartile
a Wilcoxon-Test for the comparison of paired measures (baseline with post-OP, baseline with 3 Months and so on)
b Friedman-Test for the comparison of the cohort course over time for all measures until 6 Months post-operative visit