Table 4.
Continuous associations between urinary potassium excretion and prevalent albuminuria and retinopathy
| Microalbuminuria (205/1,068) |
Macroalbuminuria (143/1,006) |
Non-proliferative retinopathy (507/833) |
Proliferative retinopathy (224/550) |
|||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Model | OR | 95% CI | p | OR | 95% CI | p | OR | 95% CI | p | OR | 95% CI | p |
| 1 | 1.09 | 0.95, 1.25 | 0.20 | 0.98 | 0.83, 1.16 | 0.79 | 1.12 | 0.98, 1.27 | 0.10 | 0.87 | 0.73, 1.04 | 0.13 |
| 2 | 1.03 | 0.88, 1.20 | 0.76 | 1.04 | 0.85, 1.28 | 0.71 | 1.10 | 0.94, 1.28 | 0.24 | 0.84 | 0.67, 1.05 | 0.12 |
| 3 | 1.03 | 0.88, 1.22 | 0.68 | 1.07 | 0.86, 1.32 | 0.57 | 1.11 | 0.95, 1.30 | 0.20 | 0.88 | 0.69, 1.12 | 0.29 |
OR indicates the odds of prevalent albuminuria or retinopathy per g/day potassium excretion
Model 1: adjusted for age and sex
Model 2: model 1 + BMI, smoking (never/ex/current), urinary sodium excretion and use of antihypertensive medication
Model 3: model 2 + physical activity (0/≤sex-specific median/>sex-specific median), total energy intake, protein intake, saturated fat intake, fibre intake, alcohol intake (0/≤sex-specific median/>sex-specific median)