Table 3.
Kidney Stone and Liver Disease Survey.
| Survey question | Cases (N = 198)a | Controls (N = 322)a | P value |
|---|---|---|---|
| 1. Has a doctor ever told you that you have kidney stones? | <.01 | ||
| Missing | 1 | 1 | |
| Yes | 52 (26.4) | 46 (14.3) | |
| No | 145 (73.6) | 275 (85.7) | |
| 2a. If so, how many kidney stones have you had? | 2 (1–40) (n = 45) |
2 (1–75) (n = 39) |
.48 |
| Age when first kidney stone was diagnosed? | 45 (16–70) (n = 50) |
43 (16–72) (n = 44) |
.83 |
| Age when last kidney stone was passed? | 57 (16–73) (n = 45) |
53 (15–78) (n = 41) |
.48 |
| 4. Have any of your blood relatives had kidney stones? | .11 | ||
| Missing | 9 | 23 | |
| Yes | 56 (29.6) | 69 (23.1) | |
| No | 133 (70.4) | 230 (76.9) | |
| 5. Has a doctor ever told you that you have liver disease? | |||
| Missing | 1 | 3 | |
| Yes | 197 (100.0) | 0 (0.0) | |
| No | 0 (0.0) | 319 (100.0) | |
| 7. Have any of your blood relatives had liver disease? | <.01 | ||
| Missing | 5 | 12 | |
| Yes | 47 (24.4) | 43 (13.9) | |
| No | 146 (75.6) | 267 (86.1) |
a
Continuous variables are reported as median (range); categorical as No. (%).