Table 3.
The association between month of vaccination and BCG-scar size 13 month after neonatal BCG vaccination among the 1857 children in the Danish Calmette Study who developed a scar.
| Determinants | Median (IQR) |
Crude (N = 2039) |
Adjusted∗ (N = 1793) |
|||||
|---|---|---|---|---|---|---|---|---|
| P50 (P25–P75) | Difference in median/cm. | 95 % CI | p-value | Difference in median/cm. | 95 % CI | p-value | ||
| Month of vaccination | January | 0.50 (0.40–0.60) | 0 (ref.) | 0 (ref.) | ||||
| February | 0.50 (0.38–0.63) | 0 | (-0.05 to 0.05) | 1.00 | 0.01 | (-0.04 to 0.05) | 0.71 | |
| March | 0.45 (0.35–0.55) | -0.05 | (-0.09 to -0.01) | 0.03 | -0.06 | (-0.10 to -0.01) | 0.01 | |
| April | 0.45 (0.35–0.55) | -0.05 | (-0.10 to 0.00) | 0.04 | -0.06 | (-0.11 to 0.00) | 0.04 | |
| May | 0.45 (0.35–0.58) | -0.05 | (-0.10 to 0.00) | 0.03 | -0.03 | (-0.09 to 0.02) | 0.26 | |
| June | 0.45 (0.35–0.55) | -0.05 | (-0.10 to 0.00) | 0.03 | -0.04 | (-0.10 to 0.01) | 0.13 | |
| July | 0.41 (0.33–0.55) | -0.08 | (-0.12 to -0.03) | 0.00 | -0.06 | (-0.12 to 0.00) | 0.06 | |
| August | 0.45 (0.35–0.55) | -0.05 | (-0.10 to 0.00) | 0.03 | -0.04 | (-0.10 to 0.01) | 0.13 | |
| September | 0.45 (0.35–0.55) | -0.05 | (-0.10 to 0.00) | 0.03 | -0.06 | (-0.11 to 0.00) | 0.05 | |
| October | 0.45 (0.35–0.55) | -0.05 | (-0.10 to 0.00) | 0.03 | -0.05 | (-0.11 to 0.00) | 0.04 | |
| November | 0.40 (0.30–0.55) | -0.1 | (-0.14 to -0.06) | 0.00 | -0.09 | (-0.13 to -0.04) | 0.00 | |
| December | 0.50 (0.40–0.63) | 0 | (-0.05 to 0.05) | 1.00 | -0.01 | (-0.05 to 0.04) | 0.70 | |
∗
Analysis adjusted for study site, vaccine batch, vaccine experience, maternal age at delivery, maternal BCG vaccination, parental smoking, atopic disposition, other children <4 years of age in the home, sex, prematurity, birth weight, caesarean section, child age at BCG vaccination, ethnicity, exclusively breastfeed, mid-upper arm circumference and Δweight.