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Table 3 Estimated pooled prevalence of positive pools: - by frequentist method (EPP) and minimum infection rate (MIR)

From: Prevalence of tick borne encephalitis virus in tick nymphs in relation to climatic factors on the southern coast of Norway

Site Number of pools* Number of positive pools detected by Real-time PCR Estimated pooled-prevalence by frequentist method on Real-time PCR (95% CI) Estimated pooled prevalence by Minimum infection rate level (MIR) (%)
S1 90a 1 0.11 (0–0.62) 0.11
S2 73 4 0.56 (0.28–1.43) 0.55
S3 62 4 0.66 (0.018–1.69) 0.65
S4 74 5 0.70 (0.23–1.62) 0.68
S5 78a,b 9 1.22 (0.56–2.30) 1.15
S6 92 4 0.44 (0.12–1.13) 0.43
S7 94b 2 0.21 (0.03–0.77) 0.21
  1. * All pools consist of 10 nymphs.
  2. a site S1 is statistically significant different from site S5; p = 0.006.
  3. b Site S7 is statistically significant different from site S5; p = 0.014.