{"id":17453,"date":"2021-08-24T14:34:09","date_gmt":"2021-08-24T14:34:09","guid":{"rendered":"https:\/\/factcheckni.org\/?p=17453"},"modified":"2022-02-27T20:50:35","modified_gmt":"2022-02-27T20:50:35","slug":"comparing-suicide-statistics","status":"publish","type":"post","link":"https:\/\/factcheckni.org\/articles\/explainers\/comparing-suicide-statistics\/","title":{"rendered":"Comparing suicide statistics"},"content":{"rendered":"\n
During the pandemic, there have been claims that the number of deaths by suicide has increased, reflecting the acknowledged mental strain experienced by many. FactCheckNI has published <\/b>several<\/b><\/a> fact<\/b><\/a> checks<\/b><\/a>, citing the lack of recent data to substantiate such claims. <\/b>Recent data have been published<\/b><\/a>, but analysing statistics on suicide remains complicated, due to registration delays and how the definition of suicide is applied.<\/b><\/p>\n\n\n\n Registration delay<\/b><\/p>\n\n\n\n Figures for deaths by suicide are based on deaths registered<\/b> in a calendar year, rather than the date that the death occurred<\/b>. The difference between these dates is known as the registration delay<\/b><\/a>. In the UK and Ireland the practices around this vary:<\/p>\n\n\n\n A consequence of registration delay is that some suicide figures will be for deaths that occured in the previous year (for example, ONS says that deaths in England tend to be registered around five to six months after they occured<\/a>). Comparison of figures is also affected by differences in the amount of registration delay in each jurisdiction<\/a>.<\/p>\n\n\n\n Definition of suicide (known and unknown intent)<\/b><\/p>\n\n\n\n Internationally, deaths are defined using the International Classification of Diseases<\/a> (ICD-10), which defines and lists the universe of diseases, disorders, injuries, and other health conditions. Many statistical agencies globally classify a death as suicide if it is recorded with a ICD-10 classification of \u201cintentional self-harm\u201d (X60\u2013X84, Y87.0) or \u201cevents of undetermined intent\u201d (Y10\u2013Y34, Y87.2).<\/p>\n\n\n\n National Records of Scotland (NRS) provides a helpful description<\/a> of the difference between \u201cintentional self-harm\u201d and \u201cevents of undetermined intent\u201d:<\/p>\n\n\n\n The Office for National Statistics defines suicide<\/a> as including deaths from intentional self-harm (for persons aged 10 years and over) and deaths caused by injury or poisoning, where the intent was undetermined (for persons aged 15 years and over); this definition is used<\/a> by the statistics agencies in Scotland and Northern Ireland. However, in Ireland<\/a>, deaths by suicide are classified as deaths from \u201cintentional self-harm\u201d only.<\/p>\n\n\n\n As NRS notes, the conventional definition of suicide (which includes both cases of known and unknown intent) will over-estimate the true number of intentional suicides, because some deaths by \u201cundetermined intent\u201d will not have been suicides. The exact number cannot be known.<\/p>\n\n\n\n Furthermore, NISRA recently announced<\/a> that it was reviewing suicide data in Northern Ireland from 2015 to 2018 to address an anomaly. A review of drug-related deaths led to a reduction of deaths being coded as \u201cundetermined intent\u201d, resulting in revised lower figures of deaths counted as suicides. Until the review completes, NISRA recommends using a sub-series of data that only relate to \u201cself-inflicted injury\u201d (\u201cintentional self-harm\u201d), as it \u201cremains a reliable indication of the trend in suicides over recent years<\/a>\u201d.<\/p>\n\n\n\n Counting deaths from \u201cintentional self-harm\u201d<\/b><\/p>\n\n\n\n The table below shows the rate of death by self-inflicted injury (the narrower definition of suicide) across jurisidictions in 2020.<\/p>\n\n\n\n Table. Age-standardised mortality rates (per 100,000 population) for cause \u201cintentional self-harm\u201d, by jurisdiction and sex, 2020 (provisional)<\/p>\n\n\n\n