Table 2:
Hazard ratios for all-cause and cause-specific mortality by sex-specific quintile of calorie-adjusted daily potassium intake (mg/day), Rancho Bernardo Study, 1992–96.
| Daily Potassium Intake, Quintilea | |||||
|---|---|---|---|---|---|
| Mortality | Q1 HR (95% CI) | Q2 HR (95% CI) | Q3 Reference | Q4 HR (95% CI) | Q5 HR (95% CI) |
| All-Cause | |||||
| Number of deaths; person-years at risk | 164; 3627 | 177; 3724 | 165; 3659 | 175; 3719 | 174; 3606 |
| Model 1b | 1.37 (1.10,1.70) | 1.17 (0.94,1.44) | 1 | 1.03 (0.83,1.27) | 1.13 (0.91,1.41) |
| Model 2c | 1.36 (1.08,1.71) | 1.16 (0.94,1.44) | 1 | 1.01 (0.82,1.26) | 1.13 (0.90,1.41) |
| Model 3d | 1.33 (1.06,1.67) | 1.13 (0.91,1.40) | 1 | 1.01 (0.82,1.26) | 1.11 (0.88,1.38) |
| CVD | |||||
| Number of deaths; person-years at risk | 51; 3627 | 68; 3724 | 52; 3659 | 72; 3719 | 61; 3606 |
| Model 1b | 1.45 (0.98,2.15) | 1.45 (1.01,2.08) | 1 | 1.39 (0.97,1.99) | 1.31 (0.90,1.91) |
| Model 2c | 1.51 (1.00,2.26) | 1.46 (1.02,2.11) | 1 | 1.35 (0.94,1.94) | 1.28 (0.87,1.88) |
| Model 3d | 1.38 (0.92,2.08) | 1.34 (0.93,1.94) | 1 | 1.32 (0.92,1.89) | 1.18 (0.79,1.74) |
| Stroke | |||||
| Number of deaths; person-years at risk | 15; 3627 | 22; 3724 | 11; 3659 |
16; 3719 |
12; 3606 |
| Model 1b | 1.82 (0.82,4.03) | 2.21 (1.07,4.56) | 1 | 1.43 (0.66,3.08) | 1.12 (0.49,2.57) |
| Model 2c | 1.89 (0.83,4.28) | 2.21 (1.06,4.59) | 1 | 1.40 (0.64,3.02) | 1.07 (0.46,2.49) |
| Model 3d | 1.71 (0.75,3.91) | 1.92 (0.91,4.03) | 1 | 1.36 (0.63,2.96) | 1.02 (0.44,2.40) |
a
Calorie-adjusted (to a 2000-calorie diet) potassium intake (mg) by sex-specific quintile:
Women: Q1≤ 2606, Q2=2607–2931, Q3=2932–3193, Q4=3194–3533, Q5≥3534;
Men: Q1≤ 2414, Q2=2415–2685, Q3=2686–2956, Q4=2957–3269, Q5≥3270
b
Model 1: adjusted for sex, age, total caloric intake (n=1,363)
c
Model 2: Model 1 + exercise, education, alcohol intake, BMI, Mon/Sat Fat Ratio, calcium, and sodium intake (n=1,359)
d
Model 3: Model 2 + diabetes, hypertension, prevalent CVD, and eGFR (n=1,347)