Initiation to heroin injecting among heroin users in Sydney, Australia: cross sectional survey.

Harm Reduct J · 2005 · PMC550668 · PMID 15713226

Europe PMC DOI

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failed to reach significanceno p-value reported

For those who completed primary school only, the mean age of first heroin use was 17 (SD 5.4) years and 19 (SD 6.0) years for those who attended secondary school or above, the difference failed to reach significance ( t 395 = -1.89, p = .0.56).

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