Are national suicide prevention programs effective? A comparison of 4 verum and 4 control countries over 30 years.

BMC Psychiatry · 2019 · PMC6533665 · PMID 31122215

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a significant trendno p-value reported

As we expected, there were no level changes or a significant trend after the period of NSPP implementation in the verum countries.

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a negative trendno p-value reported

These trends were positive for the males younger than 24 years and the group of 25–44-year-olds, which evolved into a negative trend after the NSPP implementation in both groups.

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