Table 2. Census Block Group–Level (N = 13,834 Census Block Groups) Association Between Degree of Rurality (in 2019) and Access to Lung Cancer Screening Within 30 Miles (in 2019) Adjusted for Demographic Characteristics, Missouri And Illinois, 2013–2017.
| Model Parameter | Unadjusted Model |
Adjusted Model |
||
|---|---|---|---|---|
| OR (95% CI) | P Value | OR (95% CI) | P Value | |
| Degree of ruralitya | ||||
| Metropolitan (RUCA codes 1–3) | 1.00 [Reference] | 1.00 [Reference] | ||
| Micropolitan (RUCA codes 4–6) | 0.019 (0.016–0.022) | <.001 | 0.17 (0.10–0.27) | <.001 |
| Small town or rural (RUCA codes 7–10) | 0.017 (0.015–0.020) | <.001 | 0.17 (0.12–0.26) | <.001 |
| Demographic characteristicsb | ||||
| Median annual household income, in thousands, $c | 1.03 (1.03–1.03) | <.001 | 1.01 (1.00–1.02) | .09 |
| Percentage of population aged ≥25 with a college degreed | 1.05 (1.05–1.06) | <.001 | 1.01 (1.00–1.03) | .08 |
| Percentage of population that is Whited | 0.91 (0.91–0.92) | <.001 | 1.02 (1.00–1.03) | .05 |
| Percentage of population that is African Americand | 0.95 (0.94–0.96) | <.001 | 1.01 (0.99–1.03) | .32 |
Abbreviations: OR, odds ratio; RUCA, rural–urban commuting area.
a
Census tract–level RUCA codes used to measure rurality (16).
b
Determined by American Community Survey 5-year estimates (15).
c
Odds ratio represents $1,000 increase in median annual household income.
d
Odds ratio represents 1 percentage-point increase in the corresponding variable.