Prevalence of Self-Reported Postpartum Depression Specific to Season and Latitude of Birth: Evaluating the PRAMS Data

To determine whether season of infant birth or amount of daylight at time and location of birth is a risk factor for self-reported postpartum depression (PPD). The primary hypothesis was that the prevalence of PPD will peak during the darkest winter months. A cross-sectional analysis was conducted u...

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Bibliographic Details
Published in:Maternal and child health journal 2010-03, Vol.14 (2), p.261-267
Main Authors: Jewell, Jennifer S., Dunn, Andrea L., Bondy, Jessica, Leiferman, Jenn
Format: Article
Language:English
Subjects:
Adolescent
Adult
Babies
Child
Childrens health
Circadian rhythm
Cross-Sectional Studies
Darkness - adverse effects
Datasets
Depression, Postpartum - epidemiology
Emotions
Female
Geography
Gynecology
Humans
Hypotheses
Maternal and Child Health
Medicine
Medicine & Public Health
Mental depression
Middle Aged
Monitoring systems
Pediatrics
Population Economics
Postpartum depression
Pregnancy
Prevalence studies (Epidemiology)
Public Health
Questionnaires
Risk assessment
Risk factors
Seasons
Self report
Sociology
Surveys
United States - epidemiology
Womens health
Young Adult
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Summary:To determine whether season of infant birth or amount of daylight at time and location of birth is a risk factor for self-reported postpartum depression (PPD). The primary hypothesis was that the prevalence of PPD will peak during the darkest winter months. A cross-sectional analysis was conducted using the Pregnancy Risk Assessment Monitoring System (PRAMS) Phase 5 (2004–2006) data set ( N  = 67,079). Self-reported PPD was established using a modified version of the Patient Health Questionnaire-2 (PHQ-2) included in the PRAMS questionnaire. Logistic regression for complex survey design was used to determine odds ratios and 95% confidence intervals. No significant relationship was found between mild or moderate PPD and either season of birth or length of daylight at birth. By analyzing a large, multi-state sample, this study adds to the equivocal preexisting literature suggesting that there is no significant relationship between the season of birth or length of daylight at birth and PPD.
ISSN:1092-7875
1573-6628
DOI:10.1007/s10995-009-0498-6