Paternal age and mortality in nonaffective psychosis

Schizophr Res. 2010 Feb 16. [Epub ahead of print]

Paternal age and mortality in nonaffective psychosis.
Miller B, Pihlajamaa J, Haukka J, Cannon M, Henriksson M, Heilä H, Huttunen M, Tanskanen A, Lönnqvist J, Suvisaari J, Kirkpatrick B.

Department of Psychiatry and Health Behavior, Medical College of Georgia, Augusta, Georgia, United States; Department of Psychiatry, University of Oulu, Oulu, Finland.

INTRODUCTION: Advanced paternal age (APA) is associated with an increased mortality in the general population, and is a risk factor for schizophrenia. We aimed to test if APA is associated with increased mortality in people with nonaffective psychosis. METHODS: Subjects with nonaffective psychosis who were born in Helsinki, Finland, between 1951 and 1960 (n=529) were followed until June 2006 (age 46 to 55). Hazard ratios were calculated, adjusting for subject age, age of the other parent, and gender. RESULTS: In females but not males, there was a significant increase in all-causes mortality (HR=7.04, 95% CI 1.60-31.04, p=0.01) and natural deaths (HR=7.64, 95% CI 1.20-48.66, p=0.03) in offspring of fathers age >/=40, after adjustment for potential confounders. In males but not females, there was a significant decrease in suicides (HR=0.89, 95% CI 0.81-0.97, p=0.01) with increasing maternal age (as a continuous variable). In the entire sample, there was also a trend for decreased all-cause mortality (HR=0.96, 95% CI 0.92-1.01, p=0.08) with increasing maternal age (as a continuous variable). DISCUSSION: Both paternal and maternal age may affect mortality risk in offspring with psychosis. The specific disorders and pathway(s) associated with the increase in natural cause mortality remain to be determined. Copyright © 2010 Elsevier B.V. All rights reserved.

PMID: 20163936 [PubMed - as supplied by publisher]

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