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The temporal clusters of influenza A(H7N9) cases detected using the temporal cluster analysis, China, 2013–2014.
| Type | Year | Time Frame | Obs | Exp | LLR | RR | p Value |
|---|---|---|---|---|---|---|---|
| Most likely | 2013 | 2013/3/1 to 2013/4/30 | 125 | 62.70 | 60.065300 | 9.30 | 0.001 |
| Most likely | 2014 | 2014/1/1 to 2014/5/31 | 282 | 247.27 | 12.751988 | 2.24 | 0.001 |
| Secondary | - | - | - | - | - | - | - |
Obs—the number of observed cases in a cluster; Exp—the number of expected cases in a cluster; LLR—Log likelihood ratio; RR—Relative risk.
