"I walked into the medical centre, burst into tears and said 'I can’t do this anymore,'" Mark Compain told 1 NEWS.
Dr Graeme Jarvis says for every dollar spent on medicines, three to ten dollars are saved in terms of reduced hospitalisation for chronic illness sufferers.
The Auckland Mayor underwent an angioplasty on Saturday to have stents put in to widen arteries in his heart.
The study, by the University of Otago, found 96 per cent of Kiwi dentists have had to correct botched procedures from overseas.
NZ Aged Care released findings it says show over half of DHBs are delaying rest home access to people deemed high risk.