Table 1.
Prevalence of Paragonimus mexicanus metacercariae according to crab gender and carapace size group
| No. (%) of crabs | Chi2 | Degrees of freedom | P-value | |||
|---|---|---|---|---|---|---|
|
| ||||||
| Total | Positive | Negative | ||||
| Crab gender | ||||||
| Male | 50 (66.7) | 24 (32.0) | 26 (34.7) | 0.54 | 1 | 0.46 |
| Female | 25 (33.3) | 15 (20.0) | 10 (13.3) | |||
| Overall | 75 (100) | 39 (52.0) | 36 (48.0) | |||
|
| ||||||
| Carapace size (cm) | ||||||
| 1.3–2.9 | 19 (25.3) | 5 (6.7) | 14 (18.7) | 8.96 | 3 | 0.03a |
| 3–3.5 | 20 (26.7) | 10 (13.3) | 10 (13.3) | |||
| 3.6–4.4 | 20 (26.7) | 12 (16.0) | 8 (10.7) | |||
| >4.4 | 16 (21.3) | 12 (16.0) | 4 (5.3) | |||
| Overall | 75 (100) | 39 (52.0) | 36 (48.0) | |||
No difference in the infection rate was found between genders, but significant difference was found among carapace size groups.
a
Significance=P<0.05.