Did COVID Change the Trajectory of Inequity?

Comparing the rate of change of equity gaps before and after the pandemic — not just levels, but whether the gap was widening or narrowing and at what speed.

Slope Change — Which Indicators Shifted Most?

Each row is an indicator × ethnicity pair. The pre-COVID annual change rate is compared to the post-COVID annual change rate. Positive slope change = the gap is now worsening faster (or improving more slowly) than before the pandemic.

Top Movers — Full Time Series

Indicators where the trajectory changed most, showing all years including the COVID period (shaded).

Summary Table

Source: NZ Health Survey (Ministry of Health) 2011–2024, via NZHS Annual Data Explorer | CC BY 4.0

Pre-COVID regression: 2011–2019 (n=9). Post-COVID regression: 2023–2024 (n=2). COVID years 2020–2022 excluded. Slope = OLS coefficient (pp/year). Severity = signed gap magnitude, positive = worse for Māori/Pacific. Analysis is descriptive — statistical significance of slope change is not assessable with 2 post-COVID observations.