{'fraction_non_alphanumeric': 0.05578947368421053, 'fraction_numerical': 0.035789473684210524, 'mean_word_length': 5.054140127388535, 'pattern_counts': {'":': 0, '<': 0, '<?xml version=': 0, '>': 1, 'https://': 0, 'lorem ipsum': 0, 'www.': 0, 'xml': 0}, 'pii_count': 0, 'substrings_counts': 0, 'word_list_counts': {'cursed_substrings.json': 0, 'profanity_word_list.json': 0, 'sexual_word_list.json': 0, 'zh_pornsignals.json': 0}}
Dietary Sodium, Potassium, and Blood Pressure in Normotensive Pregnant Women: the National Health and Nutrition Examination Survey.

Dietary sodium, potassium, and sodium-to-potassium ratio are linearly associated with blood pressure (BP) in non-pregnant adults. Earlier investigations suggested null or inverse associations of BP and sodium during normotensive pregnancy; findings have not been confirmed in race/ethnically diverse women or while accounting for potassium. Our purpose was to evaluate associations of BP with sodium and potassium and sodium-to-potassium ratio in race/ethnically diverse normotensive pregnant women. We used cross-sectional BP and dietary data from 984 women in multiple cycles of the National Health and Nutrition Examination Survey (mean age=27.6±0.2 years). We tested for differences in BP across quartiles of sodium intake using Kruskal-Wallis tests and linear regression to evaluate associations of sodium, potassium, and the sodium-to-potassium ratio with systolic and diastolic BP. We adjusted for potential confounding variables: age, race/ethnicity, education, marital status, BMI, smoking, and month of pregnancy. Systolic and diastolic BP were similar across quartiles of sodium intake: Quartile 1 (lowest sodium intake): 107/59; Quartile 2: 106/59; Quartile 3: 108/60; Quartile 4 (highest sodium intake): 108/58 mmHg, p>0.60 for all. Sodium (b=0.16, 95%CI: -0.20, 0.52) and potassium (b=0.18, 95%CI: -0.24, 0.60) and the sodium-to-potassium ratio (b= -0.54, 95%CI: -1.55, 0.47) were not associated with systolic or diastolic BP. Results were similar in stratified analyses. • BP was similar among quartiles of sodium or potassium intake, even in analyses stratified by race/ethnicity and trimester of pregnancy • There was no association of sodium or potassium with BP • BP may be insensitive to dietary sodium and potassium during normotensive pregnancy.