Abstract: 【Abstract】Objective To investigate food and nutritional intake in the patients with continuous ambulatory peritoneal dialysis (CAPD) so as to provide scientific evidences for nutrition intervention in these patients. Methods A retrospective survey of diet in 24 hours was performed in 70 CAPD patients. Based on the daily protein intake (DPI), they were divided into group I [normal DPI group, DPI ≥1.08 g/(kg·d)] and group II [DPI insufficient group, DPI <1.08 g/(kg · d)]. Dietary survey and nutritional status were evaluated in the two groups. Results The incidence of insufficient DPI was 77.1% (54 cases) in the 70 CAPD patients. The intakes
of cereals, vegetables, meat and poultry were significantly higher in group I than in group II (Z=-3.089, -2.088 and -3.465 respectively; P=0.002, 0.037 and 0.001 respectively). The daily energy intake (DEI) and DPI were significantly higher in group I than in group II (t=4.400 and 8.562 respectively; P<0.001). The intakes of dietary protein and animal protein were significantly higher in group I than in group II (t=6.171 and 5.246 respectively; P<0.001), while the intake of plant protein was significantly lower in group I than in group II (t=3.387, P=0.001). The intakes of vitamins A, B1, B2, C and PP were significantly higher in group I than in group II (t=2.841, 4.821, 4.314, 2.480 and 5.109 respectively; P=0.006, <0.001, <0.001, 0.016 and <0.001 respectively). The intakes of potassium, sodium, calcium, magnesium, iron, manganese, zine, copper, phosphorus and selenium were significantly higher in group I than in group II (t=5.003, 2.500, 2.593, 4.359, 5.660, 3.443, 5.721, 4.480, 5.789 and 3.065 respectively; P<0.001, 0.016, 0.012, <0.001, <0.001, 0.001,<0.001, <0.001, <0.001 and 0.003 respectively). Conclusions Lower dietary intake in CAPD patients was common, and protein intake was much lower than the recommended amount. The dietary nutritional status was worse in group II than in group I. Effective measures of nutritional education and individualized dietary
instructions should be taken to improve the nutritional status in CAPD patients.

Key words: Dietary survey, Peritoneal dialysis, Protein