Table 1.
Before treatment | Months after treatment |
||||
---|---|---|---|---|---|
1 | 2 | 3 | 6 | ||
Pure carrier | 7 (14) | 7 (14) | 9 (18) | 8 (16) | 7 (14) |
Mixed carrier | 0 (0) | 2 (4) | 6 (12)* | 5 (10)** | 3 (6) |
Total carrier | 7 (14) | 9 (18) | 15 (30) | 13 (26) | 10 (20) |
Data are presented as n (%); α = 0.05.
*χ2 = 6.3830, P < 0.05.
**χ2 = 5.2632, P < 0.05.