ɪt wʌz ɹᵻplˈeɪst baɪ ɐ mˈoːɹ kˈɑːmplɛks fˈɔːɹmjʊlə ɐnˈaʊnst ɪnðə pˌʌblɪkˈeɪʃən ʌv wˈɜːkɪŋ fɔːɹ pˈeɪʃənts ɪn nˈaɪntiːnhˈʌndɹɪd ˈeɪɾi nˈaɪn,ænd ðɛɹ hæv sˈɪns bˌɪn fˈɜːðɚ tʃˈeɪndʒᵻz ænd dᵻbˈeɪt, pɚtˈɪkjʊlɚli ɐbˌaʊt ðə ɹˈɛlətˌɪv wˈeɪɾɪŋ təbi ɡˈɪvən tʊ ˈoʊld ˈeɪdʒ, wˌɪtʃ fˈeɪvɚz mˈoːɹ pɹˈɑːspɚɹəs sˈʌðɚn ˈɛɹiəz, ænd dˌɛpɹɪvˈeɪʃən wˌɪtʃ fˈeɪvɚz pˈʊɹɹɚ nˈɔːɹðɚn ˈɛɹiəz.
It was replaced by a more complex formula announced in the publication of Working for Patients in 1989,and there have since been further changes and debate, particularly about the relative weighting to be given to old age, which favours more prosperous Southern areas, and deprivation which favours poorer Northern areas.