Table 2.
Sodium (mg/day) | Potassium (mg/day) | Molar sodium-to-potassium ratio | |||||
---|---|---|---|---|---|---|---|
n | Median | (95% CI) | Median | (95% CI) | Median | (95% CI) | |
Overall | 9,707 | 2,574 | (2,547, 2,600) | 2,069 | (2,046, 2,092) | 2.30 | (2.28, 2.33) |
Hispanic/Latino background | |||||||
Central American | 1,029 | 3,144a | (3,083, 3,206) | 2,216 | (2,153, 2,279) | 2.59a | (2.52, 2.66) |
Cuban | 1,238 | 2,490 | (2,390, 2,590) | 1,956a | (1,889, 2,022) | 2.31a | (2.23, 2.38) |
Dominican | 952 | 2,195a | (2,119, 2,270) | 1,943a | (1,871, 2,015) | 2.30a | (2.22, 2.39) |
Mexican (ref) | 3,997 | 2,534 | (2,489, 2,580) | 2,185 | (2,144, 2,225) | 2.10 | (2.06, 2.14) |
Puerto Rican | 1,562 | 2,307a | (2,221, 2,393) | 1,756a | (1,703, 1,808) | 2.47a | (2.39, 2.54) |
South American | 631 | 2,731a | (2,635, 2,826) | 2,167 | (2,098, 2,236) | 2.29a | (2.20, 2.37) |
Education | |||||||
<HS | 3,712 | 2,415a | (2,367, 2,463) | 1,976a | (1,941, 2,012) | 2.30 | (2.25, 2.35) |
HS or equivalent | 2,334 | 2,738a | (2,679, 2,797) | 2,074 | (2,033, 2,115) | 2.44a | (2.38, 2.50) |
>HS (ref) | 3,632 | 2,609 | (2,560, 2,659) | 2,148 | (2,110, 2,186) | 2.23 | (2.19, 2.27) |
Income | |||||||
<$20,000 | 4,564 | 2,524 | (2,487, 2,562) | 2,045 | (2,015, 2,076) | 2.32 | (2.28, 2.36) |
$20,000–<$50,000 | 3,408 | 2,638 | (2,587, 2,688) | 2,151 | (2,109, 2,194) | 2.25 | (2.20, 2.30) |
≥$50,000 (ref) | 752 | 2,642 | (2,536, 2,748) | 2,154 | (2,073, 2,234) | 2.21 | (2.12, 2.29) |
Nativity | |||||||
Foreign born | 8,103 | 2,523 | (2,493, 2,554) | 2,116a | (2,090, 2,142) | 2.21a | (2.18, 2.23) |
US born (ref) | 1,587 | 2,779 | (2,708, 2,850) | 1,906 | (1,858, 1,954) | 2.69 | (2.63, 2.76) |
Smoking status | |||||||
Current smoker | 1,460 | 2,718a | (2,620, 2,816) | 2,001 | (1,945, 2,057) | 2.54a | (2.45, 2.62) |
Nonsmoker (ref) | 8,232 | 2,554 | (2,524, 2,584) | 2,089a | (2,064, 2,114) | 2.27 | (2.24, 2.30) |
Dietary supplement | |||||||
Yes | 4,864 | 2,541 | (2,500, 2,581) | 2,195a | (2,164, 2,227) | 2.11a | (2.07, 2.14) |
No (ref) | 4,843 | 2,603 | (2,564, 2,641) | 1,968 | (1,939, 1,997) | 2.48 | (2.44, 2.52) |
BMI (kg/m2) | |||||||
Normal (ref) | 1,918 | 2,758 | (2,692, 2,823) | 2,170 | (2,114, 2,226) | 2.36 | (2.30, 2.42) |
Overweight | 3,346 | 2,502a | (2,458, 2,546) | 2,074a | (2,037, 2,111) | 2.23a | (2.18, 2.27) |
Obese | 4,412 | 2,534a | (2,488, 2,579) | 2,012a | (1,978, 2,046) | 2.34 | (2.29, 2.38) |
The intraindividual coefficient of variation (a measure of within person variance) was 25.6% for sodium, 21.4% for potassium, and 24.2% for sodium-to-potassium ratio. The inter-individual coefficient of variation (a measure of between person variance) was 45.9% for sodium, 40.3% for potassium, and 45.0% for sodium-to-potassium ratio. Abbreviations: CI, confidence intervals; HCHS/SOL, Hispanic Community Health Study/Study of Latinos; HS, high school; Ref, reference.
a95% confidence intervals do not overlap and usual nutrient intake is statistically significantly different compared with the reference category.