| Serotype | S. p isolates in PCV7 group (% of participants)a | S. p isolates in Hib group (% of participants) a | Comparison of NP carriage rate at Day 180 between PCV7 and Hib groups | ||||
| Day 0 n = 1643 | Day 180 n = 1475 | Day 0 n = 1638 | Day 180 n = 1475 | Percentage decrease of Nasopharyngeal S. p carriage rate from Day 0 to Day 180 in PCV7 group vs. Hib group (95% CI) | c2 value | P value | |
| 4 | 3 (0.2) | 1 (0.1) | 2 (0.1) | 1 (0.1) | 0.0 (−1,497.2, 93.7) | 0.00 | 1.000 |
| 6B | 32 (2.0) | 29 (2.0) | 31 (1.8) | 36 (2.4) | 16.7 (−30.7, 50.3) | 0.54 | 0.380 |
| 9V | 1 (0.1) | 1 (0.1) | 0 (0.0) | 3 (0.2) | 50.0 (−220.1, 96.5) | 0.25 | 0.617 |
| 14 | 28 (1.7) | 16 (1.1) | 21 (1.2) | 29 (2.0) | 44.8 (−1.1, 69.9) | 3.81 | 0.051 |
| 18C | 0 (0.0) | 0 (0.0) | 1 (0.1) | 0 (0.0) | 0 | / | / |
| 19F | 56 (3.4) | 45 (3.1) | 54 (3.4) | 57 (3.9) | 21.1 (−15.9, 46.2) | 1.33 | 0.249 |
| 23F | 24 (1.5) | 24 (1.6) | 36 (2.2) | 20 (1.4) | −14.3 (−116.3, 33.4) | 0.37 | 0.543 |
| Total VT | 144 (8.8) | 116 (7.9) | 145 (8.9) | 146 (9.9) | 20.2 (−0.3, 37.1) | 3.77 | 0.052 |
| 6A | 30 (1.8) | 28 (1.9) | 45 (2.7) | 34 (2.3) | 17.7 (−35.1, 49.8) | 0.59 | 0.441 |
| Total VT plus 6A | 174 (10.6) | 144 (9.8) | 190 (11.6) | 180 (12.2) | 20.0 (1.6, 35.0) | 4.49 | 0.034 |