What the data shows
Kalawao County has unusually high barrier levels and high diabetes prevalence, strongly influencing the apparent relationships. Patterns among the other four counties are mixed. These are exploratory associations—not evidence of causation.
Kalawao Has the Highest Estimated Diabetes Prevalence
Kalawao Drives the Apparent Healthcare-Access Relationship
Exploratory only. The relationship changes substantially when Kalawao is removed, showing that one observation strongly influences the result.
| Analysis | Pearson r | R² | n |
|---|---|---|---|
| All 5 counties (primary) | 0.97 | 0.94 | 5 |
| Excluding Kalawao (sensitivity check) | −0.17 | 0.03 | 4 |
Strong Correlations Require Caution at n = 5
Strong values are largely influenced by Kalawao. Sensitivity checks weaken—and sometimes reverse—several correlations, which indicates instability rather than protective effects.
What this means for practice
- Use these findings to identify questions for more detailed assessment.
- Examine healthcare access and social barriers together in future research.
- Repeat the analysis using census-tract, ZIP-code, or individual-level data.
- Do not use this five-county analysis alone for resource-allocation decisions.
About the Data and Methods
Source: CDC PLACES County Data, 2025 release. Values are modeled county-level crude prevalence estimates.
- Pearson correlations are unweighted; each county is one observation.
- The regression is exploratory, not predictive or causal.
- County-level estimates do not establish individual-level relationships.
- Results are highly sensitive to Kalawao County.