A New Zealand whole-of-population study has determined that contact with a health service in the 6 months prior to death is associated with increased odds of suicide. The study examined all individuals aged at least 15 years who were alive on 5 March 2013, with follow-up to December 2015. Of the suicide decedent population, 59.4% had contacted primary health services, 46.5% had contacted secondary health services, and 30.4% had contacted tertiary health services in the 6 months prior to death. Contact with primary, secondary and tertiary services was associated with odds ratios for suicide of 2.51 (95% CI 2.19-2.88), 4.45 (95% CI 3.69-4.66) and 6.57 (95% CI 5.84-7.38), respectively, compared with those who had no health services contact.