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Table 5 Meta-regression p values by covariate, with and without abnormally wet years included in analysis

From: Drought severity and all-cause mortality rates among adults in the United States: 1968–2014

Covariate

P value

Wet Years Included

 Race

0.001

 Sex

0.992

 Age

0.002

 Region

<  0.001

Wet Years Excluded

 Race

<  0.001

 Sex

0.975

 Age

0.001

 Region

<  0.001