Table 2.
Comparison of Observed Region Specific Subtype Proportions in 1994 and 2002
| |
North |
Central |
South |
||||||
|---|---|---|---|---|---|---|---|---|---|
| |
1994 |
2002 |
|
1994 |
2002 |
|
1994 |
2002 |
|
| Subtype | n (%) | n (%) | Change (%) | n (%) | n (%) | Change (%) | n (%) | n (%) | Change (%) |
| A | 77 (21.1) | 91 (27.0) | 5.9 | 39 (15.5) | 55 (23.8) | 8.3 | 13 (8.3) | 42 (17.5) | 9.2 |
| C | 3 (0.8) | 1 (0.3) | −0.5 | 1 (0.4) | 1 (0.4) | 0.0 | 3 (1.9) | 5 (2.1) | 0.2 |
| D | 239 (65.5) | 196 (58.2) | −7.4 | 182 (72.2) | 145 (62.8) | −9.4 | 122 (77.7) | 163 (67.9) | −9.8 |
| Recombinant | 46 (12.6) | 49 (14.5) | 1.9 | 30 (11.9) | 30 (13.0) | 1.1 | 19 (12.1) | 30 (12.5) | 0.4 |
| Total | 365 | 337 | 252 | 231 | 157 | 240 | |||