Volume 19, Number 1—January 2013
Research
Risk Factors for Nipah Virus Infection among Pteropid Bats, Peninsular Malaysia
Table 3
Univariate analysis of independent variables and Nipah virus serostatus of 2 Pteropus bat species surveyed in a cross-sectional survey (without pup data), Peninsular Malaysia, January 2004–October 2006*
Species and risk factor | No. positive/no. tested (%) | p value† | OR (95% CI) |
---|---|---|---|
P. vampyrus | |||
Age |
|||
Juvenile |
14/56 (25) | Referent | 1.00 |
Adult |
68/193 (35.2) | 0.151 | 1.63 (0.83–3.19) |
Sex |
|||
M |
38/135 (28.1) | Referent | 1.00 |
F |
44/114 (38.6) | 0.081 | 1.6 (0.94–2.73) |
Female reproductive status |
|||
Dry |
21/58 (36.2) | Referent | 1.00 |
Pregnant |
6/14 (42.3) | 0.645 | 1.32 (0.40–4.33) |
Carrying a pup |
3/7 (42.9) | 0.731 | 1.32 (0.27–6.48) |
Nursing |
11/17 (64.7) | 0.042 | 3.23 (1.04–9.99) |
Juvenile |
3/18 (16.7)
|
0.130
|
0.35 (0.09–1.36)
|
P. hypomelanus | |||
Age |
|||
Juvenile |
0/31 (0) | NA | NA |
Adult |
13/86 (15.1) | NA | NA |
Sex |
|||
M |
7/58(12.1) | Referent | 1.00 |
F |
6/59 (10.2) | 0.744 | 0.85 (0.26–2.62) |
Female reproductive status |
|||
Dry |
2/23 (8.7) | Referent | 1.00 |
Pregnant |
4/14 (28.6) | 0.112 | 4.20 (0.65–26.89) |
Carrying a pup |
NA | NA | NA |
Nursing |
NA | NA | NA |
Juvenile |
0/22 (0) | NA | NA |
*OR, odds ratio; NA, not applicable.
†By χ2 test, Fisher exact test, or simple logistic regression.
1Members of the Henipavirus Ecology Research Group are listed on the group’s website (www.ecohealthalliance.org/herg).