Table 2.
Sodium intake, potassium intake, and sodium-to-potassium ratio (Na/K) in 563 older Portuguese men, ≥65 years old, participating in a cross-sectional observational study
| Sodium intake, mg/day (n = 563) | Potassium intake, mg/day (n = 562) | Na/K (n = 562) | ||||
|---|---|---|---|---|---|---|
| Age, yearsa | Median (IQR) | Inadequate (≥2,000) n (%) | Median (IQR) | Inadequate (<3,500) n (%) | Median (IQR) | >1n (%) |
| 65–79 | 3,812 (2,052) | 416 (92.0) | 2,730 (1,365) | 351 (77.8) | 2.31 (1.04) | 448 (99.3) |
| ≥80 | 3,484 (1,684) | 99 (89.1) | 2,496 (1,014) | 95 (85.6) | 2.24 (1.12) | 109 (98.2) |
| p | <0.05 | n.s. | <0.05 | n.s. | n.s. | n.s. |
| Education, years | ||||||
| 0 | 3,416 (1,440) | 44 (91.7) | 2,340 (897) | 43 (89.6) | 2.44 (1.21) | 48 (100) |
| 1–3 | 3,774 (1,808) | 69 (93.2) | 2,691 (1,365) | 58 (79.5) | 2.32 (1.18) | 73 (100) |
| 4 | 3,860 (2,152) | 284 (90.2) | 2,769 (1,443) | 241 (76.5) | 2.25 (1.04) | 310 (98.4) |
| 5–11 | 3,768 (1,964) | 90 (94.7) | 2,730 (1,014) | 77 (81.1) | 2.29 (0.84) | 95 (100) |
| ≥12 | 3,628 (1,940) | 28 (90.3) | 2,379 (975) | 27 (87.1) | 2.13 (1.25) | 91 (100) |
| p | n.s. | n.s. | <0.05 | n.s. | n.s. | n.s. |
| Marital status | ||||||
| Single/divorced/widowed | 3,288 (1,668) | 174 (88.8) | 2,379 (1,014) | 172 (88.2) | 2.35 (1.14) | 195 (100) |
| Married/common-law marriage | 3,952 (2,064) | 340 (92.9) | 2,886 (1,326) | 273 (74.6) | 2.27 (1.02) | 361 (98.6) |
| p | <0.05 | n.s. | <0.05 | <0.05 | n.s. | n.s. |
| Residence | ||||||
| Home | 3,768 (1,952) | 504 (91.8) | 2,652 (1,248) | 434 (79.2) | 2.31 (1.05) | 543 (99.1) |
| Care home | 2,668 (1,320) | 11 (78.6) | 2,574 (1,267.5) | 12 (85.7) | 1.59 (0.90) | 14 (100) |
| p | <0.05 | n.s. | n.s. | n.s. | <0.05 | n.s. |
| Household income, € | ||||||
| ≤499 | 3,276 (1,812) | 46 (86.8) | 2,418 (1,101.8) | 46 (88.5) | 2.36 (1.05) | 50 (96.2) |
| 500–999 | 3,908 (2,168) | 109 (92.4) | 2,691 (1,218.8) | 96 (81.4) | 2.39 (0.93) | 118 (100) |
| >1,000 | 4,096 (1,584) | 91 (97.8) | 3,003 (1,287) | 66 (71.0) | 2.20 (0.98) | 93 (100) |
| Unknown/no response | 3,648 (2,036) | 269 (90.0) | 2,535 (1,287) | 238 (79.6) | 2.24 (1.12) | 296 (99.0) |
| p | <0.05 | n.s. | <0.05 | n.s. | n.s. | n.s. |
| BMI, kg/m2 | ||||||
| Underweight/normal | 3,324 (1,616) | 89 (89.9) | 2,457 (1,287) | 84 (84.8) | 2.18 (0.88) | 93 (99.0) |
| Overweight | 3,780 (1,932) | 261 (91.9) | 2,613 (1,326) | 225 (79.5) | 2.34 (1.16) | 280 (98.9) |
| Obese | 3,908 (2,188) | 165 (91.7) | 2,749.5 (1,238.3) | 137 (76.1) | 2.30 (0.97) | 179 (99.4) |
| p | <0.05 | n.s. | n.s. | n.s. | n.s. | n.s. |
Note: 2,000 mg sodium = 5 g salt (NaCl).
BMI, body mass index; IQR, interquartile range.
n.s. – non significant
a
65–79 years: n = 451; ≥80 years: n = 112.