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Table 3 Binary logistic regression between concentration and exposure time to the essential oil of ripe fruits and seeds of Schinus terebinthifolia Raddi and larval mortality of larvae of Stegomyia aegypti (Linnaeus, 1792)

From: Mechanistic basis for morphological damage induced by essential oil from Brazilian pepper tree, Schinus terebinthifolia, on larvae of Stegomyia aegypti, the dengue vector

Parameter Parameters
Coefficient EP Z p
Essential oil concentration (PPM)
Constant −1.086 0.069 −15.81 <0.01hs
PPM 0.003 0.0001 17.30 <0.01hs
G = 330.59; df = 1; p < 0.01as2 Hosmer-Lemeshow = 59.65; p < 0.01hs
Time of exposure to the essential oil   
Constant −0.295 0.86 −3.43 <0.01hs
Time 0.005 0.002 2.91 <0.01hs
G = 8.50; df = 1; p < 0.01as; χ2 Hosmer-Lemeshow = 0.937; p < 0.01h
Concentration + Time of exposure to the essential oil
Constant −1.380 0.113 −12.25 < 0.01hs
PPM 0.0026 0.0002 17.35 < 0.01hs
Time 0.0059 0.0018 3.32 < 0.01hs
G = 341.67; df = 2; p < 0.01; χ2 Hosmer-Lemeshow = 45.62; p < 0.01
Concentration (PPM) + Time of exposure to the essential oil + Concentration *Time
Constant −1.6672 0.1913 −8.71 < 0.01hs
PPM 0.0033 0.0004 8.10 < 0.01hs
Time 0.0117 0.0036 3.29 < 0.01hs
PPM*Time −0.00001 0.000001 −1.86 0.07ns
G = 345.10; df = 3; p < 0.01as; χ2 Hosmer-Lemeshow = 66.55; p < 0.01 ns: non-significant; s: significant; hs: highly significant.