+ Site Statistics
References:
54,258,434
Abstracts:
29,560,870
PMIDs:
28,072,757
+ Search Articles
+ Subscribe to Site Feeds
Most Shared
PDF Full Text
+ PDF Full Text
Request PDF Full Text
+ Follow Us
Follow on Facebook
Follow on Twitter
Follow on LinkedIn
+ Translate
+ Recently Requested

Register data suggest lower intelligence in men born the year after flu pandemic



Register data suggest lower intelligence in men born the year after flu pandemic



Annals of Neurology 66(3): 284-289



To test the hypothesis that prenatal exposure to the Hong Kong flu, an influenza pandemic that haunted Europe during winter 1969 to 1970, was associated with reduced intelligence in adulthood. Data from the Medical Birth Register of Norway were linked with register data from the National Conscript Service. The sample comprised all registered boys born alive in single birth after 37 to 43 weeks' gestation during 1967 to 1973 (n = 205,634). Intelligence test scores, recorded at military conscription, were available for 182,913 individuals. The mean intelligence score increased from one birth year to another, except for a downturn in 1970. The birth year 1970 was inversely associated with intelligence score (-0.03 standard deviation [SD]; p < 0.001) after adjustments for birth characteristics, parental characteristics, and the trend of increasing scores over the 7 birth years. Analyses with the sample stratified by birth month showed that the inverse association between the birth year 1970 and intelligence score was significant only among men born in July (-0.04 SD; p = 0.049), August (-0.05 SD; p = 0.013), September (-0.09 SD; p < 0.001), and October (-0.06 SD; p = 0.008). Thus, the intelligence scores of the men born 6 to 9 months after the epidemic were lower than the mean values for the men born in the same months a few years before or after. Early prenatal exposure to the Hong Kong flu may have interfered with fetal cerebral development and caused reduced intelligence in adulthood.

(PDF emailed within 0-6 h: $19.90)

Accession: 055446031

Download citation: RISBibTeXText

PMID: 19798723

DOI: 10.1002/ana.21702


Related references

Suggest a format for intelligence control and structure of holographic data storage system. Microsystem Technologies 13(8-10): 1153-1160, 2007

Temperament traits in 4-year-old children born prematurely - may they suggest a threat for mental functioning?. Psychiatria Polska 52(2): 371-386, 2018

Behavioral and intelligence outcome in 8- to 16-year-old born small for gestational age. Korean Journal of Pediatrics 59(10): 414-420, 2016

Community-level data suggest that asthma prevalence varies between U.S. and foreign-born black subpopulations. Journal of Asthma 45(9): 785-789, 2008

Do children born to teenage parents have lower adult intelligence? A prospective birth cohort study. Plos One 12(3): E0167395, 2017

Caudate and hippocampal volumes, intelligence, and motor impairment in 7-year-old children who were born preterm. Pediatric Research 55(5): 884-893, 2004

Influenza A(H1N1)pdm09 in England, 2009 to 2011: a greater burden of severe illness in the year after the pandemic than in the pandemic year. Euro Surveillance 17(14), 2012

Prevalence and diagnosis of schizophrenia based on register, case record and interview data in an isolated Finnish birth cohort born 1940-1969. Social Psychiatry and Psychiatric Epidemiology 40(10): 808-816, 2005

Unemployment and long-term effects on absence from work - a register-based study of Swedish-born and foreign-born young adults. Occupational and Environmental Medicine 68(Suppl_1): A28-A29, 2011

Latest look at Canadian register data shows lower mortality among PD patients. Nephrology News & Issues 11(11): 44-44, 1997

The national hospital discharge register data on lower limb amputations. European Journal of Vascular and Endovascular Surgery 32(1): 66-70, 2006

A non-response analysis of 2-year data in the Swedish Knee Ligament Register. Knee Surgery, Sports Traumatology, Arthroscopy 25(8): 2481-2487, 2016

Two-year outcome data from the Italian Home Enteral Nutrition Register. Clinical Nutrition 14(SUPPL 1): 2-5, 1995

Estimation of fertility based on an analysis of data concerning children born alive to women in the reproductive age combined with data on births occurring in the year before the census. Revista Brasileira de Estatistica 37(145): 3-23, 1977

The North of England Multiple Pregnancy Register: five-year results of data collection. Twin Research and Human Genetics 9(6): 913-918, 2007