Table 1.

Risk factor distribution of infants with confirmed anti-HTLV positive, indeterminate, and negative eluates. Percentages are given for samples for which presence or absence of risk factors could be determined

Risk factor	Confirmed HTLV				Indeterminate (%)	HTLV negative (%)	Total
	I	II	Not Typed	Total (%)
Caribbean*	25	0	2	27 (69)	1 (25)	2 898 (7)	2 926
Other endemic area†	6	1	3	10 (26)	1 (25)	4 660 (11)	4 671
No risk‡	1	0	1	2 (5)	2 (50)	33 929 (82)	33 933
Low risk§	11	0	0	11	1	54 951	54 963
No data linkage	16	1	0	17	1	29 499	29 517
Total	59	2	6	67	6	125 937	126 010

^*At least one parent born in Caribbean or mother of black Caribbean ethnicity. 

^†At least one parent born in west or central Africa, Japan, or South America. 

^‡Both parents born in non-endemic regions, mother not black Caribbean. 

^§Mother born in non-endemic area, but ethnic status or father's country of birth not known.