Table 2. Characteristics of case-patients and controls in study of Clostridiodes difficile infection in older adults with cancer, United States.
| Characteristic |
% Total case-patients,
n = 2,421 |
% Total controls,
n = 12,105 |
|---|---|---|
| Cancer diagnosis | ||
| No cancer | 46 | 51 |
| Solid tumor | 43 | 43 |
| Liquid tumor | 12 | 7 |
| Age, y* | ||
|---|---|---|
| 66–69 | 10 | 10 |
| 70–74 | 20 | 21 |
| 75–79 | 21 | 21 |
| 80–84 | 22 | 22 |
| >85 | 27 | 27 |
| Sex* | ||
|---|---|---|
| M | 41 | 41 |
| F | 59 | 59 |
| Race | ||
|---|---|---|
| White | 84 | 83 |
| Black | 10 | 9 |
| Other/unknown | 6 | 7 |
| Urban/rural | ||
|---|---|---|
| Metropolitan | 87 | 83 |
| Not metropolitan | 13 | 17 |
| US region | ||
|---|---|---|
| West | 38 | 40 |
| Midwest | 15 | 13 |
| South | 20 | 26 |
| Northeast | 27 | 21 |
| Prior hospitalizations† | ||
|---|---|---|
| 0 | 20 | 37 |
| 1 | 18 | 32 |
| 2 | 19 | 16 |
| 3 | 12 | 6 |
| 4 | 10 | 4 |
| >5 | 22 | 5 |
| Prior skilled nursing facility stay† | ||
|---|---|---|
| No | 56 | 83 |
| Yes | 44 | 18 |
*Case-patients with Clostridioides difficile infection were matched to controls without C. difficile infection, by age and sex. †Stays within 12 mo before a patient’s index date were used to define prior hospitalizations and prior skilled nursing facility stays.