Sex differences in traumatic stress reactivity in rats with and without a history of alcohol drinking.

Although the difference in the proportion of avoiders and non-avoiders in male and female rats did not reach statistical significance ( P = .39) due to sample size (given a 95% confidence level and 80% power, the recommended sample size would be n = 95), the proportion of alcohol-drinking males that met the avoider criteria was 27% higher than alcohol-drinking females (Fig. 2 c).

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