Table 1.

Vitamin B12 levels and hematocrits in patients in Peru infected with Diphyllobothrium pacificum*

Patient	Sex	Age, years	Serum vitamin B12 level, pg/mL		Hematocrit		Diagnostic finding	Symptoms†	Dietary habits‡
			Baseline	Day 90	Baseline	Day 90
1	M	14	377	–	38	–	Eggs	1	a, b, c
2	F	41	283.1	480,1	37	–	Eggs	1, 2, 3	a, b, c
3	F	10	647.9	626,6	40	40	Eggs	1, 2, 3	a, b, c
4	F	48	387.1	352,4	44	42	Eggs	1	a, b, c
5	M	3	585.6	670,7	38	39	Eggs	1, 2, 4, 5	a, b, c
6	F	66	198.7	143,3	33	36	Eggs	1, 2, 3	a, b, c
7	M	21	317.1	348,6	37	45	Proglottids	1, 5	a, b, c
8	M	41	486.8	–	41	–	Proglottids	2, 4	a, b, c
9	M	28	293.8	–	48	–	Proglottids	2, 5	a, b, c
10	M	23	377.2	360,3	45	41	Proglottids	1, 2, 4, 6	a, b, c
11	F	8	1,120	–	35	–	Proglottids	6	a, c
12	F	17	399.6	–	–	–	Proglottids	None	None
13	F	24	740.7	–	40	–	Proglottids	2, 3	a, b
14	F	56	517	649,5	33	39	Proglottids	2, 4	a, b, c
15	F	50	532.2	620,5	39	39	Proglottids	1, 2, 3, 4	a, b, c
16	F	23	308.7	–	–	–	Eggs	None	None
17	F	14	929	1120	39	39	Proglottids	3, 4	None
18	F	33	–	–	–	–	Proglottids	1, 2, 3	a, b, c
19	F	27	–	–	36	–	Proglottids	1, 2, 4	a, b, c
20	M	26	–	–	–	–	Eggs	1, 3, 4	a

^*Patients with anemia are shown in bold.

^†1 = abdominal pain; 2 = fatigue; 3 = constipation; 4 = diarrhea; 5 = weight loss; 6 = loss of appetite.

^‡Reported consumption of fish: a = fried; b = stewed; c = ceviche.