Table 1.
Baseline comorbidities in stone formers identified by ICD-9 codes from 1984 to 2008 (group 1) and control participants in Olmsted County, Minnesota
| Comorbidity | Stone Formers (n=6926), n (%) | Controls (n=24,620), n (%) | P |
|---|---|---|---|
| CKD | 383 (5.5) | 811 (3.3) | <0.001 |
| Hypertension | 1501 (21.7) | 4848 (19.7) | <0.001 |
| Diabetes mellitus | 766 (11.1) | 2048 (8.3) | <0.001 |
| Obesity | 1655 (23.9) | 5044 (20.5) | <0.001 |
| Dyslipidemia | 1647 (23.8) | 5389 (21.9) | <0.001 |
| Gout | 219 (3.2) | 648 (2.6) | 0.02 |
ICD-9, International Classification of Diseases, Ninth Revision.