Table 1.
Participant Characteristics According to Rotarix Vaccination and Maternal Secretor Status
| Characteristic | Unvaccinated Infants (n = 227) | Vaccinated Infants (n = 216) | ||||||
|---|---|---|---|---|---|---|---|---|
| Maternal Secretor (n = 156) |
Maternal Nonsecretor (n = 71) | Total | P Value | Maternal Secretor (n = 148) |
Maternal Nonsecretor (n = 68) | Total | P Value | |
| Sex | ||||||||
| Male | 87 (55.8) | 33 (46.5) | 120 (52.9) | .2 | 79 (53.4) | 35 (52.8) | 114 (52.8) | .8 |
| Female | 69 (44.2) | 38 (53.5) | 107 (47.1) | 69 (46.6) | 33 (47.2) | 102 (47.2) | ||
| Infant secretor status | ||||||||
| Secretor | 113 (72.4) | 37 (52.1) | 150 (66.1) | .003 | 121 (81.8) | 28 (41.2) | 149 (69.0) | 2 × 10−9 |
| Nonsecretor | 43 (27.6) | 34 (47.9) | 77 (33.9) | 27 (18.2) | 40 (58.8) | 67 (31.0) | ||
| Week 18 RV-IgA | ||||||||
| Seroconversion | 31 (19.9) | 13 (18.3) | 44 (19.4) | .8 | 32 (21.6) | 25 (36.8) | 57 (26.4) | .019 |
| No seroconversion | 125 (80.1) | 58 (81.7) | 183 (80.6) | 116 (78.4) | 43 (63.2) | 159 (73.6) | ||
| GMC (95% CI) | 13.4 (11.1–16.0) | 12.3 (9.5–16.0) | NA | .61 | 18.3 (14.3–23.3) | 21.6 (15.2–30.8) | NA | .4 |
Data are shown as No. (%) unless otherwise indicated.
Abbreviations: CI, confidence interval; GMC, geometric mean concentration; NA, not applicable; RV-IgA, plasma rotavirus-specific immunoglobulin A.