Dates of birth and seasonal changes in well-being among 4904 subjects completing the seasonal pattern assessment questionnaire

John Eagles, Neil William Scott, Isobel Mary Cameron, Samantha Mary Wileman, Simon Alexander Naji

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

Background: Abnormal distributions of birthdates, suggesting intrauterine actiological factors, have been found in several psychiatric disorders, including one study of out-patients with Seasonal Affective Disorder (S.A.D.). We investigated birthdate distribution in relation to seasonal changes in well-being among a cohort who had completed the Seasonal Pattern Assessment Questionnaire (SPAQ).

Method: A sample of 4904 subjects, aged 16 to 64, completed the SPAQ. 476 were cases of S.A.D. on the SPAQ and 580 were cases of sub-syndromal S.A.D. (S-S.A.D.). 92 were interview confirmed cases of S.A.D. Months and dates of birth were compared between S.A.D. cases and all others, between S.A.D. and S-S.A.D. cases combined and all others, and between interview confirmed cases and all others. Seasonality, as measured through seasonal fluctuations in well-being on the Global Seasonality Scores (GSS) of the SPAQ, was compared for all subjects by month and season of birth.

Results: There was no evidence of an atypical pattern of birthdates for subjects fulfilling criteria for S.A.D., for the combined S.A.D./S-S.A.D. group or for interview confirmed cases. There was also no relationship between seasonality on the GSS and month or season of birth.

Limitations: Diagnoses of S.A.D. made by SPAQ criteria are likely to be overinclusive.

Conclusion: Our findings differ from studies of patients with more severe mood disorders, including psychiatric out-patients with S.A.D. The lack of association between seasonality and birthdates in our study adds credence to the view that the aetiology of S.A.D. relates to separable factors predisposing to affective disorders and to seasonality.

Original languageEnglish
Pages (from-to)161-165
Number of pages5
JournalJournal of Affective Disorders
Volume104
Issue number1-3
Early online date26 Mar 2007
DOIs
Publication statusPublished - Dec 2007

Keywords

  • seasonal affective disorder
  • birth rate
  • seasons
  • depressive disorder
  • affective-disorder
  • anorexia-nervosa
  • polymorphism
  • depression
  • mood
  • risk

Cite this

@article{dfaf45d5e1904137b69167b9f84dec5d,
title = "Dates of birth and seasonal changes in well-being among 4904 subjects completing the seasonal pattern assessment questionnaire",
abstract = "Background: Abnormal distributions of birthdates, suggesting intrauterine actiological factors, have been found in several psychiatric disorders, including one study of out-patients with Seasonal Affective Disorder (S.A.D.). We investigated birthdate distribution in relation to seasonal changes in well-being among a cohort who had completed the Seasonal Pattern Assessment Questionnaire (SPAQ). Method: A sample of 4904 subjects, aged 16 to 64, completed the SPAQ. 476 were cases of S.A.D. on the SPAQ and 580 were cases of sub-syndromal S.A.D. (S-S.A.D.). 92 were interview confirmed cases of S.A.D. Months and dates of birth were compared between S.A.D. cases and all others, between S.A.D. and S-S.A.D. cases combined and all others, and between interview confirmed cases and all others. Seasonality, as measured through seasonal fluctuations in well-being on the Global Seasonality Scores (GSS) of the SPAQ, was compared for all subjects by month and season of birth. Results: There was no evidence of an atypical pattern of birthdates for subjects fulfilling criteria for S.A.D., for the combined S.A.D./S-S.A.D. group or for interview confirmed cases. There was also no relationship between seasonality on the GSS and month or season of birth. Limitations: Diagnoses of S.A.D. made by SPAQ criteria are likely to be overinclusive. Conclusion: Our findings differ from studies of patients with more severe mood disorders, including psychiatric out-patients with S.A.D. The lack of association between seasonality and birthdates in our study adds credence to the view that the aetiology of S.A.D. relates to separable factors predisposing to affective disorders and to seasonality.",
keywords = "seasonal affective disorder, birth rate, seasons, depressive disorder, affective-disorder, anorexia-nervosa, polymorphism, depression, mood, risk",
author = "John Eagles and Scott, {Neil William} and Cameron, {Isobel Mary} and Wileman, {Samantha Mary} and Naji, {Simon Alexander}",
year = "2007",
month = "12",
doi = "10.1016/j.jad.2007.02.014",
language = "English",
volume = "104",
pages = "161--165",
journal = "Journal of Affective Disorders",
issn = "0165-0327",
publisher = "Elsevier",
number = "1-3",

}

TY - JOUR

T1 - Dates of birth and seasonal changes in well-being among 4904 subjects completing the seasonal pattern assessment questionnaire

AU - Eagles, John

AU - Scott, Neil William

AU - Cameron, Isobel Mary

AU - Wileman, Samantha Mary

AU - Naji, Simon Alexander

PY - 2007/12

Y1 - 2007/12

N2 - Background: Abnormal distributions of birthdates, suggesting intrauterine actiological factors, have been found in several psychiatric disorders, including one study of out-patients with Seasonal Affective Disorder (S.A.D.). We investigated birthdate distribution in relation to seasonal changes in well-being among a cohort who had completed the Seasonal Pattern Assessment Questionnaire (SPAQ). Method: A sample of 4904 subjects, aged 16 to 64, completed the SPAQ. 476 were cases of S.A.D. on the SPAQ and 580 were cases of sub-syndromal S.A.D. (S-S.A.D.). 92 were interview confirmed cases of S.A.D. Months and dates of birth were compared between S.A.D. cases and all others, between S.A.D. and S-S.A.D. cases combined and all others, and between interview confirmed cases and all others. Seasonality, as measured through seasonal fluctuations in well-being on the Global Seasonality Scores (GSS) of the SPAQ, was compared for all subjects by month and season of birth. Results: There was no evidence of an atypical pattern of birthdates for subjects fulfilling criteria for S.A.D., for the combined S.A.D./S-S.A.D. group or for interview confirmed cases. There was also no relationship between seasonality on the GSS and month or season of birth. Limitations: Diagnoses of S.A.D. made by SPAQ criteria are likely to be overinclusive. Conclusion: Our findings differ from studies of patients with more severe mood disorders, including psychiatric out-patients with S.A.D. The lack of association between seasonality and birthdates in our study adds credence to the view that the aetiology of S.A.D. relates to separable factors predisposing to affective disorders and to seasonality.

AB - Background: Abnormal distributions of birthdates, suggesting intrauterine actiological factors, have been found in several psychiatric disorders, including one study of out-patients with Seasonal Affective Disorder (S.A.D.). We investigated birthdate distribution in relation to seasonal changes in well-being among a cohort who had completed the Seasonal Pattern Assessment Questionnaire (SPAQ). Method: A sample of 4904 subjects, aged 16 to 64, completed the SPAQ. 476 were cases of S.A.D. on the SPAQ and 580 were cases of sub-syndromal S.A.D. (S-S.A.D.). 92 were interview confirmed cases of S.A.D. Months and dates of birth were compared between S.A.D. cases and all others, between S.A.D. and S-S.A.D. cases combined and all others, and between interview confirmed cases and all others. Seasonality, as measured through seasonal fluctuations in well-being on the Global Seasonality Scores (GSS) of the SPAQ, was compared for all subjects by month and season of birth. Results: There was no evidence of an atypical pattern of birthdates for subjects fulfilling criteria for S.A.D., for the combined S.A.D./S-S.A.D. group or for interview confirmed cases. There was also no relationship between seasonality on the GSS and month or season of birth. Limitations: Diagnoses of S.A.D. made by SPAQ criteria are likely to be overinclusive. Conclusion: Our findings differ from studies of patients with more severe mood disorders, including psychiatric out-patients with S.A.D. The lack of association between seasonality and birthdates in our study adds credence to the view that the aetiology of S.A.D. relates to separable factors predisposing to affective disorders and to seasonality.

KW - seasonal affective disorder

KW - birth rate

KW - seasons

KW - depressive disorder

KW - affective-disorder

KW - anorexia-nervosa

KW - polymorphism

KW - depression

KW - mood

KW - risk

U2 - 10.1016/j.jad.2007.02.014

DO - 10.1016/j.jad.2007.02.014

M3 - Article

VL - 104

SP - 161

EP - 165

JO - Journal of Affective Disorders

JF - Journal of Affective Disorders

SN - 0165-0327

IS - 1-3

ER -