Table 1 Characteristics of the HTLV-1 cohort and the indications for CT imaging

Ethnicity

African/Afro-Caribbean

139

161

Caucasian

21

69

Asian

2

10

Japanese/Chinese

1

4

South American

2

1

Not known

2

1

M:F ratio

51:116

1:2.9 p = 0.27

Median HTLV proviral load at 1^st visit (HTLV DNA copies/100 PBMC)

15.9 %

1.25 % p < 0.0001

Lymphoma/Leukaemia

29.3

HAM/TSP

14.0

HAID

8.5

Strongyloidiasis

20.6

Time from HTLV diagnosis (years) to CT

2

2.5

Indication for CT imaging (bronchiectasis)

   Productive cough +/- recurrent chest infection

15 (9)

17 (1)

   Weight loss

7

9

   Suspected malignancy

2

8

   Abnormal chest X-ray

5 (4)

   Unclear

1