Table 5.
Association of Zip-Code-level Participant Characteristics With Celiac Disease and Helicobacter pylori Infection Among Patients With Biopsy Specimens Submitted to Miraca Life Sciences (Irving, Texas) During the Period January 1, 2008–June 30, 2012
| Zip-Code-level Characteristic and Quartile | Prevalence of Celiac Disease, % | Adjusteda OR | 95% CI | Prevalence of H. pylori, % | Adjusteda OR | 95% CI |
|---|---|---|---|---|---|---|
| Median household incomeb | ||||||
| 1 | 1.7 | 1.0 | 13.4 | 1.0 | ||
| 2 | 2.0 | 1.17 | 0.94, 1.47 | 8.8 | 0.75 | 0.67, 0.84 |
| 3 | 2.2 | 1.25 | 1.00, 1.56 | 7.6 | 0.70 | 0.63, 0.78 |
| 4 | 2.3 | 1.25 | 1.00, 1.58 | 6.4 | 0.66 | 0.59, 0.75 |
| % of black residentsc | ||||||
| 1 | 2.3 | 1.0 | 7.5 | 1.0 | ||
| 2 | 2.3 | 1.00 | 0.81, 1.22 | 7.5 | 0.98 | 0.86, 1.12 |
| 3 | 1.9 | 0.83 | 0.67, 1.03 | 8.8 | 1.07 | 0.94, 1.21 |
| 4 | 1.8 | 0.83 | 0.66, 1.03 | 11.2 | 1.42 | 1.25, 1.60 |
| % of Hispanic residentsd | ||||||
| 1 | 2.3 | 1.0 | 6.8 | 1.0 | ||
| 2 | 2.3 | 1.01 | 0.83, 1.25 | 6.7 | 1.00 | 0.87, 1.14 |
| 3 | 1.9 | 0.85 | 0.67, 1.03 | 7.9 | 1.18 | 1.04, 1.35 |
| 4 | 1.9 | 0.91 | 0.73, 1.13 | 13.4 | 1.86 | 1.65, 2.10 |
Abbreviations: CI, confidence interval; OR, odds ratio.
a Adjusted for age, gender, and Medicaid enrollment status.
b Quartile 1, <$42,104; quartile 2, $42,104–$54,642; quartile 3, $54,643–$74,034; quartile 4, >$74,034.
c Quartile 1, <1%; quartile 2, 1%–3.7%; quartile 3, 3.8%–12.5%; quartile 4, >12.5%.
d Quartile 1, <2.5%; quartile 2, 2.5%–6.4%; quartile 3, 6.5%–16.8%; quartile 4, >16.8%.