{"id":"9706edd9-73ad-4902-bb12-7ccd7038626e","first_published_at":"2025-11-27T09:30:00.000Z","published_revision":{"id":"99b786a2-d706-46c8-b2c7-870d58ec83b5","revision_index":7,"previous_revision_id":"82aa44eb-44ca-42be-b509-644c847d1f2c","created_at":"2026-02-06T11:02:02.100Z","updated_at":"2026-02-06T12:39:41.791Z","approved_at":"2026-02-06T12:39:41.775Z","publish_at":"2026-02-06T13:25:00.000Z","metadata":[{"language":"cy-GB","title":"Mynegai Amddifadedd Lluosog Cymru 2025: safeloedd a grwpiau y mynegai a meysydd, fesul Ardal Gynnyrch Ehangach Haen Is (AGEHI)","summary":"Mynegai Amddifadedd Lluosog Cymru (MALlC) yw'r mesur swyddogol o amddifadedd cymharol ar gyfer ardaloedd bach yng Nghymru. Mae’n pennu safle pob un o'r 1,917 o Ardaloedd Cynnyrch Ehangach Haen Is (ACEHIau) o'r mwyaf (safle 1) i'r lleiaf (safle 1,917) difreintiedig. Mae'n cyfuno 54 o ddangosyddion wedi'u grwpio o dan 8 maes sydd â'r pwysau canlynol yn y mynegai cyffredinol: Incwm (22%), Cyflogaeth (20%), Iechyd (15%), Addysg (14%), Mynediad at Wasanaethau (10%), Tai (9%), Diogelwch Cymunedol (5%), a'r Amgylchedd Ffisegol (5%). \n\nMae MALlC yn cynhyrchu safleoedd maes a mynegai cyffredinol i nodi ardaloedd gyda'r crynodiadau uchaf o sawl math o amddifadedd. Mae'r rhan fwyaf o'r gwerthoedd dangosydd, rhai gwerthoedd is-ddangosydd a rhai safleoedd is-faes hefyd yn cael eu cyhoeddi ar StatsCymru. Gweler yr [adroddiad canllawiau ac adroddiad technegol MALlC]( https://www.llyw.cymru/mynegai-amddifadedd-lluosog-cymru-2025-cyfres) am ragor o wybodaeth.","collection":"Nid oes trothwy penodol lle mae ardal yn cael ei disgrifio’n ‘un ddifreintiedig’ os yw’n uwch na’r trothwy hwnnw. Mae safleoedd MALlC yn aml yn cael eu grwpio’n ddegraddau, yn gwintelau neu’n grwpiau eraill at ddibenion dadansoddi. Mae degraddau'n rhannu set o ddata yn 10 rhan gyfartal, chwartel yn 4, a chwintelau yn 5. Y degradd gyntaf yw'r 10% o werthoedd isaf, yr ail ddegradd yw'r 10% nesaf ac yn y blaen. \n\nMae’r grwpiau amddifadedd ar gyfer MALlC 2025 wedi’u llunio i roi grwpiau llai o faint ar y pen mwyaf difreintiedig o’r dosbarthiad, lle mae’r gwahaniaeth rhwng ardaloedd yn fwy nag ar y pen lleiaf difreintiedig. \n\nMae’r degraddau yn cael eu rhestru o 1 i 10, y cwintelau a grwpiau amddifadedd yn cael eu rhestru o 1 i 5, a’r chwarteli yn cael eu rhestru o 1 i 4. O fewn y rhain, 1 yw'r grŵp mwyaf difreintiedig a 10, 5, a 4 yn y drefn honno yw’r lleiaf difreintiedig. \n\n* Mae degraddau'n defnyddio cynyddiadau o tua 191 o safleoedd\n* Mae cwintelau'n defnyddio cynyddiadau o tua 383 o safleoedd\n* Mae chwarteli'n defnyddio cynyddiadau o tua 479 o safleoedd\n\nGrwpiau amddifadedd:\n* 10% mwyaf difreintiedig (Safle 1-191) = grŵp 1\n* 10-20% mwyaf difreintiedig (Safle 192-382) = grŵp 2\n* 20-30% mwyaf difreintiedig (Safle 383-574) = grŵp 3\n* 30-50% mwyaf difreintiedig (Safle 575-958) = grŵp 4\n* 50% lleiaf difreintiedig (Safle 959-1917)= grŵp 5","quality":"Mae data MALlC 2025 wedi'u cynhyrchu gan ystadegwyr proffesiynol gan ddefnyddio'r data diweddaraf, dulliau dadansoddol trylwyr, a dilysu annibynnol ar bob cam. Mae MALlC 2025 yn adeiladu ar fersiynau blaenorol i sicrhau cywirdeb a dibynadwyedd, gan gyfuno 54 o ddangosyddion o ffynonellau amrywiol (mae rhai, ond nid pob un ohonynt, yn seiliedig ar ffynonellau ystadegau swyddogol) i leihau rhagfarn a chryfhau cadernid. Roedd sicrhau ansawdd yn cynnwys gwiriadau lluosog, atgynhyrchu canlyniadau, ac adolygiad arbenigol gydag arbenigwyr maes ac awdurdodau lleol.","rounding_description":null,"reason":"Newidiadau fformatio bach"},{"language":"en-GB","title":"Welsh Index of Multiple Deprivation (WIMD) 2025: index and domain ranks and groups, for Lower layer Super Output Areas (LSOA)","summary":"The Welsh Index of Multiple Deprivation (WIMD) is the official measure of relative deprivation for small areas in Wales, ranking all 1,917 Lower Layer Super Output Areas (LSOAs) from most (rank 1) to least (rank 1,917) deprived. It combines 54 indicators grouped under 8 domains which have the following weights in the overall index: Income (22%), Employment (20%), Health (15%), Education (14%), Access to Services (10%), Housing (9%), Community Safety (5%), and Physical Environment (5%). \r\n\r\nWIMD produces domain ranks and an overall index to identify areas with the highest concentrations of multiple types of deprivation. Most of the indicator values, some sub-indicator values and some sub-domain ranks are also published on StatsWales. Please see the [WIMD guidance report and technical report]( https://www.gov.wales/welsh-index-multiple-deprivation-2025-series#Backgroundinformation) for more information.\r\n","collection":"There is no definitive threshold above which an area is described as ‘deprived’. WIMD ranks are often grouped into deciles, quintiles or other groups for analysis purposes. Deciles split a set of data into ten equal parts, quartiles into 4, and quintiles into 5. The first decile is the lowest 10% of values, the second decile is the next 10%, and so on. \n\nDeprivation groups for WIMD 2025 are designed to have smaller groups at the more deprived end of the distribution, where the difference between areas is greater than at the less deprived end. \nThe deciles are ranked 1 to 10, quintiles and deprivation groups are ranked 1 to 5 and quartiles are ranked 1 to 4. Within these, 1 is the most deprived group and 10, 5, and 4 respectively are the least deprived. \n\n* Deciles use increments of around 191 ranks\n* Quintiles use increments of around 383 ranks\n* Quartiles use increments of around 479 ranks\n\nDeprivation groups:\n* 10% Most deprived (Rank 1-191) = group 1\n* 10-20% Most deprived (Rank 192-382) = group 2\n* 20-30% Most deprived (Rank 383-574) = group 3\n* 30-50% Most deprived (Rank 575-958) = group 4\n* 50% Least depri ved (Rank 959-1917) = group 5\n\n","quality":"The WIMD 2025 data have been produced by professional statisticians using the latest data, rigorous analytical methods, and independent validation at every stage. WIMD 2025 builds on previous versions to ensure accuracy and reliability, combining 54 indicators from diverse sources (some but not all are based on official statistics sources) to minimize bias and strengthen robustness. Quality assurance included multiple checks, replication of results, and expert review with domain specialists and local authorities.","rounding_description":"","reason":"Minor formatting changes"}],"rounding_applied":false,"update_frequency":{"update_type":"none"},"designation":"accredited","related_links":[{"id":"bGclq","url":"https://www.gov.wales/welsh-index-multiple-deprivation-2025-series","created_at":"2025-11-25T14:05:06.684Z","label_en":"Welsh Index of Multiple Deprivation","label_cy":"Welsh Index of Multiple Deprivation"},{"id":"fwgcR","url":"https://www.llyw.cymru/mynegai-amddifadedd-lluosog-cymru-2025-cyfres","created_at":"2025-11-25T14:05:43.781Z","label_en":"Mynegai Amddifadedd Lluosog Cymru","label_cy":"Mynegai Amddifadedd Lluosog 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