Research Submission

Frequency of Headaches in Children is Influenced by Headache Status in the Mother

Marco A. Arruda MD, PhD

Marco A. Arruda MD, PhD

From the Merck Research Laboratories, Neuroscience, Whitehouse Station, NJ, USA (M. Bigal); Albert Einstein College of Medicine – Neurology, Bronx, NY, USA (M. Bigal); Glia Institute, Ribeirao Preto, Brazil (M. Arruda); University of La Sapienza – Child and Adolescent Neuropsychiatry, Rome, Italy (V. Guidetti and F. Galli); School of Medicine at Rio Preto, Brazil (R. Albuquerque).

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Vincenzo Guidetti MD

Vincenzo Guidetti MD

From the Merck Research Laboratories, Neuroscience, Whitehouse Station, NJ, USA (M. Bigal); Albert Einstein College of Medicine – Neurology, Bronx, NY, USA (M. Bigal); Glia Institute, Ribeirao Preto, Brazil (M. Arruda); University of La Sapienza – Child and Adolescent Neuropsychiatry, Rome, Italy (V. Guidetti and F. Galli); School of Medicine at Rio Preto, Brazil (R. Albuquerque).

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Federica Galli PhD

Federica Galli PhD

From the Merck Research Laboratories, Neuroscience, Whitehouse Station, NJ, USA (M. Bigal); Albert Einstein College of Medicine – Neurology, Bronx, NY, USA (M. Bigal); Glia Institute, Ribeirao Preto, Brazil (M. Arruda); University of La Sapienza – Child and Adolescent Neuropsychiatry, Rome, Italy (V. Guidetti and F. Galli); School of Medicine at Rio Preto, Brazil (R. Albuquerque).

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Regina C.A.P. Albuquerque MD, MSci

Regina C.A.P. Albuquerque MD, MSci

From the Merck Research Laboratories, Neuroscience, Whitehouse Station, NJ, USA (M. Bigal); Albert Einstein College of Medicine – Neurology, Bronx, NY, USA (M. Bigal); Glia Institute, Ribeirao Preto, Brazil (M. Arruda); University of La Sapienza – Child and Adolescent Neuropsychiatry, Rome, Italy (V. Guidetti and F. Galli); School of Medicine at Rio Preto, Brazil (R. Albuquerque).

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Marcelo E. Bigal MD, PhD

Marcelo E. Bigal MD, PhD

From the Merck Research Laboratories, Neuroscience, Whitehouse Station, NJ, USA (M. Bigal); Albert Einstein College of Medicine – Neurology, Bronx, NY, USA (M. Bigal); Glia Institute, Ribeirao Preto, Brazil (M. Arruda); University of La Sapienza – Child and Adolescent Neuropsychiatry, Rome, Italy (V. Guidetti and F. Galli); School of Medicine at Rio Preto, Brazil (R. Albuquerque).

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First published: 01 June 2010
Citations: 33
M. Bigal, Merck Research Laboratories – Global Director for Scientific Affairs – Neuroscience, 1 Merck Drive, Whitehouse Station, NJ 08889-0100, USA.

Financial support: This study was conducted without commercial financial support.

Conflict of Interest: Dr. Bigal is an employee of Merck. His role at Merck was not related to his involvement in this study.

Abstract

(Headache 2010;50:973-980)

Background.— Migraine aggregates within families. Nonetheless the familial aggregation of chronic daily headaches (CDH) and of episodic headaches of different frequencies has been very poorly studied. Accordingly herein we test the hypothesis that frequency of primary headaches aggregates in the family.

Methods.— Sample consisted of 1994 children (5-12 years) identified in the population. Validated questionnaires were used to interview the parents. Crude and adjusted prevalences of low-frequency (1-4 headache days/month), intermediate-frequency (5-9 days/month), high-frequency (10-14 headache days/month), and CDH (15 or more headache days/month) in children were calculated as a function of headaches in the mother.

Results.— Frequency of headaches in the mother predicted frequency of headaches in the children; when the mother had low frequency headaches, the children had an increased chance to have low or intermediate headache frequency (relative risk = 1.4, 1.2-1.6) but not CDH. When the mother had CDH, risk of CDH in the children was increased by almost 13-fold, but the risk of infrequent headaches was not increased. In multivariate models, headaches in the children were independently predicted by headaches in the mother (P < .001); headache frequency in the children was also predicted by frequency in the mother (P < .001).

Conclusions.— Frequency of headaches in children is influenced by frequency of headaches in the mother and seems to aggregate in families. Future studies should focus on the determinants of headache aggregation, including genetic and non-genetic factors.