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Comparison of the mean IgM levels at different time period
| Variable | First | Month 3 | Month 6 | F (df) | P value |
|---|---|---|---|---|---|
| IgM level (mean ± SD) | 8.30 ± 0.99 | 0.43 ± 0.23 | 0.37 ± 0.14 | 84.34(2.96) | 0.0001 |
| Age (year) | 8.18(1) | 0.005 | |||
| < 60 | 5.63 ± 5.88 | 0.496 ± 1.51 | 0.44 ± 0.9 | ||
| ≥ 60 | 10.83 ± 6.11 | 0.36 ± 0.19 | 0.3 ± 0.22 |
