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Table 3 Comparison of predicted HFRS cases and actual values for Yiyuan, during January-December 2014a

From: Prevalence of hemorrhagic fever with renal syndrome in Yiyuan County, China, 2005–2014

No cases Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Actual value 3 9 4 7 11 2 4 1 5 4 7 4
Predictive value 2 4 0 1 3 0 0 0 2 7 9 2
95 % CL of PV 0–10 0–13 0–7 0–11 0–13 0–10 0–11 0–10 0–15 0–20 0–23 0–16
  1. a CL = confidence level; PV = predicted value