Table 1.
Prevalence of gout according to the liberal, base, and strict case definitions with patient characteristics for the three groups
| Liberal case definition n = 22,243 | Base case definition n = 16,833 | Strict case definition n = 6184 | |
|---|---|---|---|
| Total population | 1,237,935 | ||
| Total prevalence (95 % CI) | 1.8 (1.77–1.82) | 1.36 (1.34–1.38) | 0.5 (0.49–0.51) |
| Sex (male), % | 70 % | 72 % | 79 % |
| Age 2012 (years), mean (SD) | 69 (14) | 68 (14) | 68 (14) |
| Level of educationa | |||
| 9 years or less | 47 % | 45 % | 45 % |
| 9 to 12 years | 38 % | 39 % | 40 % |
| More than 12 years | 15 % | 16 % | 15 % |
| Co-morbidities | |||
| Hypertension | 68 % | 63 % | 67 % |
| Diabetes | 23 % | 20 % | 21 % |
| Ischemic heart disease | 27 % | 25 % | 28 % |
| Congestive heart failure | 20 % | 18 % | 22 % |
| Stroke | 14 % | 13 % | 14 % |
| Renal disease | 19 % | 17 % | 20 % |
| Diuretic treatment | |||
| Thiazide | 21 % | 20 % | 20 % |
| Loop | 41 % | 37 % | 37 % |
| Potassium conserving diuretics | 22 % | 20 % | 20 % |
a4 % missing data on level of education in the liberal case definitions and 2 % missing in base and strict case definition
CI confidence interval, SD standard deviation