For patients with unknown premorbid serum creatinine levels (637 [44.4%]), we used the multivariable imputation by chained equation method to impute creatinine values using age, sex, and weight as predictors (eAppendix 2 in the Supplement).17,18 We subsequently used the Modification of Diet in...
A 24-h urine sample for analysis of urinary sodium, potassium, and creatinine levels was performed on day 7. The high-nitrate diet intervention (with the objective to increase nitrate intake by at least 300 mg/day) was achieved via an increased intake of green leafy vegetables. Green leafy ...
of urinary sodium, potassium, and creatinine levels was performed on day 7. Interventions The high-nitrate diet intervention (with the objective to increase nitrate intake by at least 300 mg/day) was achieved via an increased intake of green leafy vegetables. Green leafy vege- tables were provid...