Table 4.
Distribution of the serotypes in Beijing from 1994 to 2010 (by gender)
| Shigella species and serotypes |
No. (%) of isolates |
Total |
Chi-square test |
|||
|---|---|---|---|---|---|---|
| Female | Male | p value | ||||
|
S. flexneri serotype 1a |
59 |
(0.99) |
112 |
(1.89) |
171 |
p < 0.03 |
|
S. flexneri serotype 1b |
6 |
(0.10) |
8 |
(0.13) |
14 |
p > 0.1 |
|
S. flexneri serotype 2a |
1,152 |
(19.41) |
2008 |
(33.84) |
3,160 |
p < 0.001 |
|
S. flexneri serotype 2b |
71 |
(1.20) |
67 |
(1.13) |
138 |
p < 0.003 |
|
S. flexneri serotype 3a |
8 |
(0.13) |
22 |
(0.37) |
30 |
p > 0.05 |
|
S. flexneri serotype 3b |
2 |
(0.03) |
1 |
(0.02) |
3 |
p > 0.1 |
|
S. flexneri serotype 4a |
71 |
(1.20) |
102 |
(1.72) |
173 |
p > 0.05 |
|
S. flexneri serotype 4b |
14 |
(0.24) |
33 |
(0.56) |
47 |
p > 0.05 |
|
S. flexneri serotype 4c |
75 |
(1.26) |
113 |
(1.90) |
188 |
p > 0.05 |
|
S. flexneri serotype 5 |
3 |
(0.05) |
27 |
(0.46) |
30 |
p < 0.001 |
|
S. flexneri serotype 6 |
29 |
(0.49) |
24 |
(0.40) |
53 |
p < 0.04 |
|
S. flexneri serotype x |
68 |
(1.15) |
110 |
(1.85) |
178 |
p > 0.05 |
|
S. flexneri serotype y |
40 |
(0.67) |
70 |
(1.18) |
110 |
p > 0.05 |
|
S. sonnei |
719 |
(12.12) |
920 |
(15.50) |
1,639 |
p < 0.0001 |
| Total | 2,317 | (39.00) | 3,617 | (61.00) | 5,934 | |