TABLE 2.
Comparison of age at first infection of rotavirus G12 with other G-type rotavirus infections detected by multiplex PCR in a community-based birth cohorta
| G type | nb | Median age (mo) at first infection (IQR) | Pc |
|---|---|---|---|
| G1 | 114 | 7.9 (4.6-17.1) | <0.001 |
| G2 | 83 | 13.9 (8.9-18.1) | <0.001 |
| G9 | 52 | 22.7 (11.7-28.5) | 0.02 |
| G10 | 65 | 0.5 (0.3-2.5) | <0.001 |
| Nontypeable | 83 | 11.9 (3.5-20.5) | <0.001 |
| Rare (G3, G4, G8) | 4 | 13.7 (8.5-24.5) | 0.06 |
| Mixed | 30 | 25.4 (11.5-30.9) | 0.21 |
| G12 | 9 | 28.49 (23.77-32.07) |
a
A community-based birth cohort of 452 children was recruited over a period of 18 months, from March 2002 to August 2003. As of March 2006, 328 children were still under follow-up. During this 4-year follow-up period, 282 children had 542 rotavirus infections. The age at first infection with genotype G12 was compared with that for other G genotypes.
b
n, number of children infected with the indicated G type.
c
P values were determined with the Mann-Whitney test by comparing G-type-specific medians to those for G12.