Is the staple diet eaten in Medawachchiya, Sri Lanka, a predisposing factor in the development of chronic kidney disease of unknown etiology? - A comparison based on urinary β2-microglobulin measurements

Table 6 Percentage frequency of consumption foods of animal origin among CKDu patients and non-CKDu subjects

Foods of animal origin	> 5 times a week		≤ 5 times a week		Once in 2 weeks		Less
Foods of animal origin	CKDu patients	Non-CKDu subjects	CKDu patients	Non-CKDu subjects	CKDu patients	Non-CKDu subjects	CKDu patients	Non-CKDu subjects
Fresh water
Fresh water fish	14	10	62	52	11	14	7	5
Fresh water dry fish	9	2	21	23	21	18	8	3
Sea water
Sea fish	1	2	29	28	34	21	18	24
Dry fish
Sprats	39	33	46	47	4	2	0	0
Other dry fish	29	19	33	42	4	5	0	3
Eggs	1	0	37	40	16	12	21	14
Chicken	0	0	11	20	21	20	36	24
Beef	0	1	2	0	1	2	9	4
Pork	0	1	1	2	3	3	11	9
Wild types*	0	1	1	2	3	2	16	21

*Wild types included meat of deer and wild bore; Data was obtained from food frequency questionnaire administered to CKDu patients (n = 100) and non-CKDu subjects (n = 100).

ISSN: 1471-2369