Volume 3, Number 2—June 1997
Dispatch
Seroepidemiologic Studies of Hantavirus Infection Among Wild Rodents in California
Table 4
Odds ratios for Sin Nombre virus antibody prevalence among Peromyscus maniculatus by association with human cases and elevation, California, 1975-1995a
Cases (+SNV) | Controls (-SNV) | Adj. ORc | 95% CIc | p value | |
---|---|---|---|---|---|
Human cased | |||||
Absent | 101 | 1274 | 1.0 | NAc | NA |
Present | 44 | 120 | 4.5 | 1.7-11.6 | 0.002 |
Elevation | |||||
(meters) | |||||
0-300 | 32 | 580 | 1.0 | NA | NA |
301-600 | 2 | 101 | 0.4 | 0.4-3.5 | 0.423 |
601-900 | 11 | 83 | 0.6 | 0.2-1.8 | 0.390 |
901-1200 | 8 | 85 | 2.4 | 0.7-8.6 | 0.168 |
1201-1500 | 26 | 234 | 3.2 | 1.0-10.0 | 0.044 |
1501-1800 | 23 | 152 | 2.6 | 0.7-9.2 | 0.151 |
1801-2100 | 26 | 103 | 4.3 | 1.3-16.7 | 0.032 |
aExcludes Channel Islands; bAdjusted for trapline location and survey date, vegetation, sex and age of deer mouse; cOR, odds ratio; CI, confidence interval; NA, not applicable; dDeer mice collected at candidate sites of exposure during human case investigations.