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Table 7 Effect of chronic exposure to two types of gasoline vapour on the number of aggressive behaviour in male rats.

From: Impact of gasoline inhalation on some neurobehavioural characteristics of male rats

  Parameter
GROUP Number of aggression events
  Tooth chattering Threat posture Leaping and biting Boxing position
Control 1.2 ± 0.33 1.1 ± 0.31 0.9 ± 0.35 0.8 ± 0.25
Leaded gasoline 3.7 ± 0.63 a* 3.9 ± 0.43 a** 3.7 ± 0.58 a** 2.7 ± 0.47 a*
Unleaded gasoline 4 ± 0.87 a* 3.6 ± 0.87 a* 3.4 ± 0.70 a* 3.2 ± 0.74 a**
  1. Values are expressed as means ± SE
  2. a: significantly different from the control group.
  3. Asterisks indicate the level of significance (* P < 0.05; ** P 0.01.)
  4. The number of animals was five pairs per ten days.