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International Journal of Public Health

, Volume 63, Issue 2, pp 173–179 | Cite as

Differences in the risk of cardiovascular disease for movers and stayers in New Zealand: a survival analysis

  • Frances Darlington-Pollock
  • Nichola Shackleton
  • Paul Norman
  • Arier C. Lee
  • Daniel Exeter
Original Article

Abstract

Objectives

To explore if risk of cardiovascular disease (CVD) for participants who moved before their first CVD event is higher than for stayers, and examine whether the relationship is moderated by ethnicity.

Methods

The sample comprised 2,068,360 New Zealand residents enrolled in any Primary Health Organisation, aged between 30 and 84 years, had complete demographic information, and no prior history of CVD. Cox proportional regression was used to compare CVD risk between movers and stayers. The analysis was conducted for the whole sample and stratified by ethnicity.

Results

The combined analysis suggested that movers have a lower risk of CVD than stayers. This is consistent for all ethnic groups with some variation according to experience of deprivation change following residential mobility.

Conclusions

Although mobile groups may have a higher risk of CVD than immobile groups overall, risk of CVD in the period following a residential mobility event is lower than for stayers. Results are indicative of a short-term healthy migrant effect comparable to that observed for international migrants.

Keywords

Cardiovascular disease Residential mobility Deprivation Survival analysis New Zealand 

Notes

Compliance with ethical standards

Ethical standard

Ethical approval for this study was first granted by the Multi-Region Ethics Committee in 2011 (ref: MEC/11/EXP/078) with subsequent approvals from the Health and Disabilities Ethics Committee.

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Copyright information

© Swiss School of Public Health (SSPH+) 2017

Authors and Affiliations

  1. 1.Queen Mary University of LondonLondonUK
  2. 2.University of AucklandAucklandNew Zealand
  3. 3.University of LeedsLeedsUK

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