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Implementation of a Real-Time Psychosis Risk Detection and Alerting System Based on Electronic Health Records using CogStack

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Birthdays as a Risk Factor for Inpatient Psychiatric Hospitalization: A Case-Crossover Study.

Keiko Kunitoki¹, Amira Bajracharya², Riti Srivastava²

¹Department of Psychiatry and Behavioral Sciences, University of Texas at Houston Health Science Center, Houston, TX.

Journal of Psychiatric Practice

|May 7, 2026

Summary

This summary is machine-generated.

Patients with psychiatric disorders are twice as likely to be admitted to the hospital around their birthday. This finding highlights birthdays as a potential stressor, increasing the risk of psychiatric hospitalization.

Keywords:

admission birthday case-crossover study psychosocial stress

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Published on: November 21, 2013

Area of Science:

Psychiatry
Mental Health Research
Epidemiology

Background:

Birthdays can evoke negative emotions, including feelings of failure and underachievement.
This study explores the link between patient admission dates and their birthdays.

Purpose of the Study:

To investigate the relationship between patient admission dates and their birthdays.
To determine if birthdays are associated with an increased risk of acute psychiatric hospitalization.

Main Methods:

Utilized electronic health records from April 2021 to June 2024.
Included patients aged 12-80, excluding competency restoration units.
Employed a case-crossover analysis with conditional logistic regression to assess birthday-associated admissions within a 28-day window.

Main Results:

Analyzed 17,847 admissions.
Patients were twice as likely to be admitted 14 days before or after their birthday (OR=2.08).
Confounding variables like age, diagnosis, and social determinants of health did not influence this likelihood.

Conclusions:

Birthdays may be a period of increased risk and stress for individuals with psychiatric disorders.
This can lead to a higher incidence of inpatient psychiatric admissions.
Recognizing birthdays as a potential risk factor can inform patient, family, and provider education.