@FrankleyMan @MatthewStadlen @MarinaHyde @ShelaghFogarty Either way it's confidential data, but the source from which it's drawn is different (at least in effect). Best bet, really, is to do both opt-outs. Without the Type-1, NHS Digital will be sitting on your data (even if they can't use it) leaving the risk of screw ups leaking it