For each of the four categories: 1) Adult_MostRecent = Adult population, Most Recent Self-harm episode 2) YoungPerson_MostRecent - Young Person population, Most Recent Self-harm episode 3) Adult_FirstEver = Adult population, First Ever Self-harm episode 4) YoungPerson_FirstEver = Young Person population, First Ever Self-harm episode Each of the above categories has two sheets e.g. Population_Episode_Original and Population_Episode_Events Sheets ending in _Original have one header called 'Original Data. This is the data as it was exported from the web program. A participant's data is in each row beneath the header. Sheets ending in _Events is where the data has been categorised into each timepoint. Headers for _Events sheets include: Original Data - the original data exported from the web program. Identifier Data - includes a string of data in the format ##*##/x/[#x]xx. ##* gives age of participant. *## is the participant ID. /x/ gives the participant's gender. Time point headings are in square brackets: [+6M] - more than 6 months prior [6M] - 6 months prior [1M] - 1 month prior [1W] - 1 week prior [1D] - 1 day prior [1H] - 1 hour prior [JB] - Just before [SH] - Self harm [IA] - Immediately After [LoA] - Longer After For each data point .xx. is the card code. Participant Items - include free response data input by participants as a blank card