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Background: Limited studies have been conducted on suicide by jumping from a height in comparison with hanging, pesticide, and firearm.Little has previously been reported on the comparative characteristics of those who die by jumping from different sites.Suicides by jumping account for about half of all suicides in Hong Kong.This amounts for about 500 deaths per year.Information about such deaths may assist in the development of method and site specific suicide prevention measures.Methods: The death files of all suicides by jumping (N =2964) in 2001-2007 in Hong Kong were reviewed.Univariate analyses were used to compare ten types of jumping suicides at different sites.To control for confounding factors, the main results of the univariate analyses were entered into a multinomial logistic regression model with the largest number of deaths, jumping from own residence, as the reference category in comparison with jumping from own floor or estate and jumping from other structures.Results: During the study period from January 1, 2002 to December 31, 2007, there were 6,256 suicides and 3044 (48.7%) were suicides by jumping from a height.1,501 (50.6%) took place at their own residences; 292 (9.9%) took place at the same floor of residences other than their own residences; 552 (18.6%) took place at area within the building or estate.When comparing the 13 selected factors between these ten groups, three factors, i.e., living condition (p =0.075), blood alcohol level at the time of death (p =0.183), and principle diagnosis (p =0.432) were statistically insignificant.Records of psychiatric treatment, physical illness, age, gender, employment status, and type of housing remained in the final multinomial regression model with p-value less than 0.05.However, the characteristics of individuals who jumped at own residencies, same floor or within the estate of own residences, or other sites do not seem to be very distinguishable based on the factors that we have investigated.Limitation: The data are limited by the studys retrospective nature, and some of the potential factors related to suicide may not have been ascertained due to the limitation of using existing coroners court files.Conclusion: Since the majority of suicides by jumping in Hong Kong occurred at the suicides own residences, it is not feasible to implement prevention strategies that based on the rationales of restricting and limiting access to means as the sole component to prevent the deaths.