Fig 1.
Recruitment and follow-up of the prospective repetition cohort.
DSP admissions reported to all the hospital in KD and suicides reported to police stations were collected from 2011–2013. Data was collected regarding the incidence and demographic patterns of DSP and suicide. Details of the cohort of DSP patients presenting in 2011 (n = 4022) were matched with subsequent records of presentations in in 2012 and 2013 using a software with high sensitivity to identify repeat presentations. Manual confirmation was done in order to confirm repetitive events with a higher degree of specificity.
Table 1.
The incidence of DSP in 2012 in the Kurunegala District among males and females, with male to female ratio.
Table 2.
Rates of repetition at four weeks, one year and two years, by age and sex.
Fig 2.
Rate of repetition among males, by age group, at four weeks, one year and two years.
Repetition rate, 4 weeks: Number of males in a particular age group with repetitive events within 4 weeks from the indexed event/Male DSP patients in the particular age group of 2011 cohort. One-year: Number of males in a particular age group with repetitive events within a year from the indexed event/Male DSP patients in the particular age group of 2011 cohort. Two-year: Number of males in a particular age group with repetitive events within two years from the indexed event/Male DSP patients in the particular age group of 2011 cohort.
Fig 3.
Rate of repetition among females, by age group, at four weeks, one year and two years.
Repetition rate, 4 weeks: Number of females in a particular age group with repetitive events within 4 weeks from the indexed event/Female DSP patients in the particular age group of 2011 cohort, One-year: Number of females in a particular age group with repetitive events within a year from the indexed event/Female DSP patients in the particular age group of 2011 cohort, Two-year: Number of females in a particular age group with repetitive events within two years from the indexed event/Female DSP patients in the particular age group of 2011 cohort.
Fig 4.
The cumulative probability of the first repetitive DSP event during the first two years, among males and females.
Percentages of repetitive events occurred in each week after the index event.
Table 3.
Fatal and non-fatal repetitive events reported to hospitals by the type of the poison and pattern of use at subsequent events.
Table 4.
Duration of hospital stay and case-fatality ratio by type of poison.
Table 5.
Suicides reported to police stations in KD by method and sex.
Table 6.
Age standardized suicide incidences in KD in 2012 among males and females.