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Table 4 Nutrient intakes and food group intakes of subjects with 3 different genotype of MTHFR C677T polymorphism

From: Maintenance of activities of daily living despite risk from genetic polymorphism in hemodialysis patients under nutritional management who survived an average of 30 years

Variable   CC(n = 23)29.5 % CT(n = 34)43.6 % TT(n = 21)26.9 % P value
Energy kcal 1897 (1299-2283) 1452 (1158-1812) 1584 (1365-1945) 0.088
Energy kcal/kgIBW 33.0 (23.5-40.0) 27.6 (21.6-34.7) 30 (23.7-34.6) 0.155
Protein g 62.2b (49.4-85.2) 49.7c (38.5-66.6) 58.9 (42.6-72.6) 0.036*
Protein g/kgIBW 1.1 (1.0-1.6) 0.9 (0.8-1.3) 1.1 (0.8-1.2) 0.086
ratio of animal protein % 58 (52-63) 54 (42-66) 55 (43-63) 0.332
NPC/Na   144 (126-154) 147 (129-191) 152 (120-200) 0.383
Fat %E 28.5 (26.2-33.2) 27 (21.5-30.5) 23.7 (19.5-29.8) 0.067
Carbohydrate %E 54.8 (51.7-57.2) 57.6 (50.7-65.8) 57.9 (54.0-64.3) 0.210
Retinol μg 620 (457-1143) 538 (328-791) 552 (371-828) 0.184
α-tocopherol mg 8.2b (6.0-10.4) 5.8c (4.3-7.4) 6.8 (5.0-8.7) 0.025*
Potassium mg 2069 (1539-2945) 1802 (1359-2185) 2104 (1541-2618) 0.208
Calcium mg 398 (290-573) 373 (230-473) 386 (249-476) 0.399
Phosphorus mg 987 (677-1212) 725 (577-998) 847 (657-1048) 0.073
Iron mg 7.7 (5.7-9.0) 6.0 (4.2-8.1) 6.5 (4.2-8.1) 0.114
VitaminB6 mg 1.0 (0.8-1.5) 0.9 (0.7-1.2) 1.0 (0.8-1.5) 0.157
VitaminB12 μg 8.4 (6.7-12.2) 6.5 (3.8-9.8) 5.4 (4.3-11.2) 0.123
Folate μg 285 (219-436) 279 (183-364) 285 (183-368) 0.465
VitaminC mg 100 (73-166) 93 (71-119) 103 (51-137) 0.475
Salt g 10.3b (8.7-12.0) 7.6c (6.4-9.7) 9.3d (7.8-11.3) 0.001*
Retinol μg/1000 kcal 366 (237-556) 350 (266-492) 329 (235-461) 0.519
α-tocopherol mg/1000 kcal 4.3 (3.9-5.1) 4.2 (3.5-4.8) 4.2 (3.2-5.3) 0.476
Potassium mg/1000 kcal 1220 (1014-1373) 1211 (1075-1469) 1210 (936-1558) 0.992
Calcium mg/1000 kcal 250 (185-292) 227 (184-300) 222 (164-292) 0.359
Phosphorus mg/1000 kcal 543 (496-588) 516 (434-628) 486 (405-647) 0.614
Iron mg/1000 kcal 4 (3.5-4.5) 4.3 (3.6-4.6) 3.7 (3.0-4.7) 0.407
VitaminB6 mg/1000 kcal 0.6 (0.50-0.70) 0.7 (0.50-0.73) 0.6 (0.50-0.80) 0.969
VitaminB12 μg/1000 kcal 4.7 (4.0-5.7) 4.5 (3.0-6.2) 4.2 (2.7-6.7) 0.609
Folate μg/1000 kcal 165 (138-219) 190 (153-223) 164 (113-212) 0.445
VitaminC mg/1000 kcal 60 (47-81) 64 (49-77) 65 (32-70) 0.808
Salt g/1000 kcal 5.7 (5.2-6.4) 5.3 (4.5-6.2) 5.4 (4.4-6.5) 0.164
Cereals g/1000 kcal 201 (184-284) 220 (187-297) 230 (185-318) 0.638
Potatos g/1000 kcal 12 (7-44) 17 (7-41) 31 (10-53) 0.303
Sugar and confectioneries g/1000 kcal 3.5 (1.8-4.5) 2.3 (1.6-3.2) 3.2 (1.7-3.6) 0.149
Nuts and pulses g/1000 kcal 19 (11-29) 19 (11-29) 16 (6-29) 0.522
Green and yellow vegetables g/1000 kcal 51 (27-65) 62 (42-83) 49 (26-78) 0.343
Other vegetables g/1000 kcal 65 (49-100) 73 (44-101) 80 (49-119) 0.933
Fruits g/1000 kcal 51 (32-107) 32 (15-67) 50 (17-86) 0.197
Fish and shellfish g/1000 kcal 44 (26-51) 37 (21-52) 41 (20-60) 0.717
Meat g/1000 kcal 42 (29-70) 31 (18-50) 36 (25-47) 0.087
Eggs g/1000 kcal 24b (11-35) 17 (6-28) 8c (4-21) 0.028*
Daily products g/1000 kcal 28 (9-47) 25 (8-73) 16 (0-61) 0.380
Fats and oils g/1000 kcal 7.5 (5.4-9.7) 5 (3.7-7.)8 6.5 (5.8-8.7) 0.055
confectioney g/1000 kcal 23 (12-46) 24 (12-52) 24 (14-48) 0.962
Alcoholic bevarages and Non-Alcoholic bevarage g/1000 kcal 176 (114-304) 207 (143-408) 246 (154-399) 0.401
seasoning and spice g/1000 kcal 81 (61-150) 82 (51-135) 61 (36-121) 0.281
  1. Abbreviations: MTHFR methylenetetrahydrofolate reductase
  2. a NPC/N ratio of non-protein energy per nitroden
  3. All values are median (25th and 75th percentiles)
  4. The normality of the data was first assessed using the Shapiro-Wilks test
  5. The values are compared between the groups by Kruskal-Wallis test and Bonferroni's multiple comparison test as appropriate. *p < 0.05
  6. b-cMultiple comparison; A different alphabet shows that there is a significant difference