Prenatal malnutrition and adult schizophrenia: Further evidence from the 1959-1961 Chinese famine

Ming-Qing Xu, Wen-Shen Sun, Ben-Xiu Liu, Guo-Yin Feng, Lan Yu, Lawrence Yang, Guang He, Pak Sham, Ezra Susser, David St Clair, Lin He

Research output: Contribution to journalArticle

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Abstract

OBJECTIVE: Evidence from the 1944-1995 Dutch Hunger Winter and the 1959-1961 Chinese famines suggests that those conceived or in early gestation during famines, have a 2-fold increased risk of developing schizophrenia in adult life. We tested the hypothesis in a second Chinese population and also determined whether risk differed between urban and rural areas. METHOD: The risk of schizophrenia was examined in Liuzhou prefecture of Guangxi autonomous region. Rates were compared among those conceived before, during, and after the famine years. Based on the decline in birth rates, we predicted that those born in 1960 and 1961 would have been exposed to the famine during conception or early gestation. All psychiatric case records in Liuzhou psychiatric hospital for the years 1971 through 2001 were examined and clinical/sociodemographic data extracted by psychiatrists blind to exposure status. Data on births and deaths in the famine years were also available, and cumulative mortality was estimated from later demographic surveys. Evidence of famine was verified, and results were adjusted for mortality. Relative risks (RRs) for schizophrenia were calculated for the region as a whole and for urban and rural areas separately. RESULTS: Mortality-adjusted RR for schizophrenia was 1.5 (1960) and 2.05 (1961), respectively. However, the effect was exclusively from the rural areas RR = 1.68 (1960) and RR = 2.25 (1961). CONCLUSIONS: We observe a 2-fold increased risk of schizophrenia among those conceived or in early gestation at the height of famine with risk related to severity of famine conditions.
Original languageEnglish
Pages (from-to)568-576
Number of pages9
JournalSchizophrenia Bulletin
Volume35
Issue number3
Early online date20 Jan 2009
DOIs
Publication statusPublished - May 2009

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Starvation
Malnutrition
Schizophrenia
Pregnancy
Psychiatry
Mortality
Hunger
Birth Rate
Psychiatric Hospitals
Demography
Parturition

Keywords

  • adult
  • birth rate
  • China
  • cross-sectional studies
  • disasters
  • female
  • gestational age
  • humans
  • infant, newborn
  • male
  • malnutrition
  • mortality
  • pregnancy
  • prenatal exposure delayed effects
  • risk
  • rural population
  • schizophrenia
  • starvation
  • survival analysis
  • urban population
  • prenatal
  • famine

Cite this

Prenatal malnutrition and adult schizophrenia : Further evidence from the 1959-1961 Chinese famine. / Xu, Ming-Qing; Sun, Wen-Shen; Liu, Ben-Xiu; Feng, Guo-Yin; Yu, Lan; Yang, Lawrence; He, Guang; Sham, Pak; Susser, Ezra; St Clair, David; He, Lin.

In: Schizophrenia Bulletin, Vol. 35, No. 3, 05.2009, p. 568-576.

Research output: Contribution to journalArticle

Xu, M-Q, Sun, W-S, Liu, B-X, Feng, G-Y, Yu, L, Yang, L, He, G, Sham, P, Susser, E, St Clair, D & He, L 2009, 'Prenatal malnutrition and adult schizophrenia: Further evidence from the 1959-1961 Chinese famine', Schizophrenia Bulletin, vol. 35, no. 3, pp. 568-576. https://doi.org/10.1093/schbul/sbn168
Xu, Ming-Qing ; Sun, Wen-Shen ; Liu, Ben-Xiu ; Feng, Guo-Yin ; Yu, Lan ; Yang, Lawrence ; He, Guang ; Sham, Pak ; Susser, Ezra ; St Clair, David ; He, Lin. / Prenatal malnutrition and adult schizophrenia : Further evidence from the 1959-1961 Chinese famine. In: Schizophrenia Bulletin. 2009 ; Vol. 35, No. 3. pp. 568-576.
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AU - Yu, Lan

AU - Yang, Lawrence

AU - He, Guang

AU - Sham, Pak

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N2 - OBJECTIVE: Evidence from the 1944-1995 Dutch Hunger Winter and the 1959-1961 Chinese famines suggests that those conceived or in early gestation during famines, have a 2-fold increased risk of developing schizophrenia in adult life. We tested the hypothesis in a second Chinese population and also determined whether risk differed between urban and rural areas. METHOD: The risk of schizophrenia was examined in Liuzhou prefecture of Guangxi autonomous region. Rates were compared among those conceived before, during, and after the famine years. Based on the decline in birth rates, we predicted that those born in 1960 and 1961 would have been exposed to the famine during conception or early gestation. All psychiatric case records in Liuzhou psychiatric hospital for the years 1971 through 2001 were examined and clinical/sociodemographic data extracted by psychiatrists blind to exposure status. Data on births and deaths in the famine years were also available, and cumulative mortality was estimated from later demographic surveys. Evidence of famine was verified, and results were adjusted for mortality. Relative risks (RRs) for schizophrenia were calculated for the region as a whole and for urban and rural areas separately. RESULTS: Mortality-adjusted RR for schizophrenia was 1.5 (1960) and 2.05 (1961), respectively. However, the effect was exclusively from the rural areas RR = 1.68 (1960) and RR = 2.25 (1961). CONCLUSIONS: We observe a 2-fold increased risk of schizophrenia among those conceived or in early gestation at the height of famine with risk related to severity of famine conditions.

AB - OBJECTIVE: Evidence from the 1944-1995 Dutch Hunger Winter and the 1959-1961 Chinese famines suggests that those conceived or in early gestation during famines, have a 2-fold increased risk of developing schizophrenia in adult life. We tested the hypothesis in a second Chinese population and also determined whether risk differed between urban and rural areas. METHOD: The risk of schizophrenia was examined in Liuzhou prefecture of Guangxi autonomous region. Rates were compared among those conceived before, during, and after the famine years. Based on the decline in birth rates, we predicted that those born in 1960 and 1961 would have been exposed to the famine during conception or early gestation. All psychiatric case records in Liuzhou psychiatric hospital for the years 1971 through 2001 were examined and clinical/sociodemographic data extracted by psychiatrists blind to exposure status. Data on births and deaths in the famine years were also available, and cumulative mortality was estimated from later demographic surveys. Evidence of famine was verified, and results were adjusted for mortality. Relative risks (RRs) for schizophrenia were calculated for the region as a whole and for urban and rural areas separately. RESULTS: Mortality-adjusted RR for schizophrenia was 1.5 (1960) and 2.05 (1961), respectively. However, the effect was exclusively from the rural areas RR = 1.68 (1960) and RR = 2.25 (1961). CONCLUSIONS: We observe a 2-fold increased risk of schizophrenia among those conceived or in early gestation at the height of famine with risk related to severity of famine conditions.

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