title: Temporal variations in suicide attempt rates: A hospital-based study from India.
abstract: BACKGROUND
  Temporal variations of suicide attempts can help to better understand correlates of suicidal behavior. This study attempted to find the diurnal, weekly, and seasonal variations in suicide attempts at a tertiary care hospital in India.
  
  
  METHODS
  This record-based study was conducted among patients evaluated at a crisis intervention clinic over a 4-year period at a tertiary care teaching hospital in Southern India. Patients who attempted suicide in recent past and had been medically stabilized were evaluated in this clinic. The distribution of suicide attempts across the time of the day, the day of the week, and month of the year was assessed.
  
  
  RESULTS
  Of the 407 patients who were included in the analysis, the frequency of suicide attempts varied across time of the day (χ2= 134.504,P< 0.001). The most common period of the day for the attempt was evenings (6 pm to 9 pm). There were no significant temporal associations between month of the year or day of the week and suicide attempts though peaks were observed for June among the months and Sundays among days of the week.
  
  
  CONCLUSIONS
  Diurnal variations exist in the suicide attempts. This has implications on clinical caseloads on emergency departments, especially during the times when staffing might be sub-optimal.
authors.affiliation: Department of Psychiatry, Jawaharlal Institute of Postgraduate Medical Education and Research, Puducherry, India.
authors.forename: Shivanand
authors.initials: S
authors.lastname: Kattimani
authors.affiliation: Department of Psychiatry, Jawaharlal Institute of Postgraduate Medical Education and Research, Puducherry, India.
authors.forename: Venkatalakshmi
authors.initials: V
authors.lastname: Penchilaiya
authors.affiliation: Department of Psychiatry and NDDTC, All India Institute of Medical Sciences, New Delhi, India.
authors.forename: Siddharth
authors.initials: S
authors.lastname: Sarkar
authors.affiliation: Department of Psychiatry, Jawaharlal Institute of Postgraduate Medical Education and Research, Puducherry, India.
authors.forename: V
authors.initials: V
authors.lastname: Muthukrishnan
keywords: India; periodicity; seasons; suicide/statistics and numerical data