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Table 3 Logistic regression results for the factors significantly affecting the probability of overall infection of Radix auricularia (n = 354) and Lymnaea stagnalis (n = 171) in the four reservoirs of the Ruhr River.

From: Larval trematode communities in Radix auricularia and Lymnaea stagnalis in a reservoir system of the Ruhr River

Snail species Factor Estimate Wald statistics p
R. auricularia Snail height 0.257 22.92 < 0.0001
  Temperature 0.247 12.59 0.0004
  Dissolved oxygen 0.290 9.03 0.0026
  pH -0.279 8.01 0.0047
L. stagnalis Snail height 0.188 18.99 < 0.0001
  pH -1.778 8.33 0.0039
  Dissolved oxygen 0.978 5.83 0.0157
  1. Infection coded 0 (uninfected) and 1 (infected)