Regression equation for predicting dietary phosphorus intake based on estimated dietary protein intake: A multicenter cross-sectional study in China

被引:1
作者
Li, Hailong [1 ]
Shi, Xiaodong [1 ]
Tan, Rongshao [2 ]
Shi, Wanying [3 ]
Liu, Jingfang [4 ]
Ge, Sheng [5 ]
Hu, Wen [6 ]
Han, Lei [7 ]
Liu, Yan [1 ]
Li, Zijian [8 ,9 ]
Zhang, Jiaying [4 ]
Cao, Yun [5 ]
Chen, Wei [1 ]
机构
[1] Chinese Acad Med Sci & Peking Union Med Coll, Peking Union Med Coll Hosp, Dept Clin Nutr, Dept Hlth Med, Beijing, Peoples R China
[2] Jinan Univ, Guangzhou Red Cross Hosp, Guangzhou Inst Dis Oriented Nutr Res, Dept Clin Nutr, Guangzhou, Peoples R China
[3] China Med Univ, Affiliated Hosp 1, Dept Clin Nutr, Shenyang, Peoples R China
[4] Fudan Univ, Huashan Hosp, Shanghai Med Coll, Div Nutr,Natl Clin Res Ctr Aging & Med, Shanghai, Peoples R China
[5] Shanghai Jiao Tong Univ, Peoples Hosp 6, Clin Nutr Dept, Shanghai, Peoples R China
[6] Sichuan Univ, West China Hosp, Clin Nutr Dept, Chengdu, Peoples R China
[7] Qingdao Univ, Affiliated Hosp, Dept Nutr, Qingdao, Peoples R China
[8] Chinese Acad Med Sci, Beijing Hosp, Natl Ctr Gerontol, Dept Gen Surg,Dept Gastrointestinal Surg, Beijing, Peoples R China
[9] Chinese Acad Med Sci, Inst Geriatr Med, Beijing, Peoples R China
关键词
chronic kidney disease; phosphorus; protein; urinary urea nitrogen; CHRONIC KIDNEY-DISEASE; MORTALITY RISK; DIALYSIS PATIENTS; SERUM-CALCIUM; PHOSPHATE; ASSOCIATION; PROGRESSION; POPULATION; PRODUCT; PTH;
D O I
10.1002/ncp.11023
中图分类号
R15 [营养卫生、食品卫生]; TS201 [基础科学];
学科分类号
100403 ;
摘要
BackgroundProtein and phosphorus intake, which affect chronic kidney disease (CKD), is assessed using cumbersome food diaries. Therefore, more straightforward and accurate methods of assessing protein and phosphorus intake are needed. We decided to investigate the nutrition status and dietary protein and phosphorus intake of patients with stages 3, 4, 5, or 5D CKD. MethodsThis cross-sectional survey included outpatients with CKD at seven class A tertiary hospitals in Beijing, Shanghai, Sichuan, Shandong, Liaoning, and Guangdong in China. Protein and phosphorus intake levels were calculated using 3-day food records. Protein levels and calcium and phosphorus serum concentrations were measured; urinary urea nitrogen was determined using a 24-h urine test. Protein and phosphorus intakes were calculated using the Maroni and Boaz formulas, respectively. The calculated values were compared with the recorded dietary intakes. An equation that regressed phosphorus intake on protein intake was constructed. ResultsThe average recorded energy and protein intake was 1637.5 +/- 595.74 kcal/day and 56.97 +/- 25.25 g/day, respectively. Overall, 68.8% of patients had a good nutrition status (grade A on the Subjective Global Assessment). The correlation coefficient between protein intake and calculated intake was 0.145 (P = 0.376) and that between phosphorus intake and calculated intake was 0.713 (P < 0.001). ConclusionProtein and phosphorus intakes correlated linearly. Chinese patients with stage 3-5 CKD had low daily energy intake but high protein intake. Malnutrition was present in 31.2% of patients with CKD. The phosphorus intake could be estimated from the protein intake.
引用
收藏
页码:218 / 226
页数:9
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