Table 1.

Demographic characteristics and sexual behaviors among young adults living in indigenous villages along the Peruvian Amazon basin

Variable	Number* (%) of HTLV negative† (N = 620)	Number* (%) of HTLV positive† (N = 18)	OR (CI)	P
Age in years (range)
18–20	186 (98.4)	3 (1.6)	Reference	0.39
21–25	263 (96.3)	10 (3.7)	2.36 (0.64–8.68)
26–30	171 (97.2)	5 (2.8)	1.81 (0.43–7.70)
Sex
Male	275 (97.5)	7 (2.5)	Reference	0.65
Female	345 (96.9)	11 (3.1)	1.25 (0.48–3.27)
Ethnic group
Shipibo-Konibo	272 (93.8)	18 (6.2)	‡	< 0.001
Other	348 (100.0)	0	–
Educational level
High school or less	327 (98.2)	6 (1.8)	Reference	0.09
Superior level	280 (95.9)	12 (4.1)	2.34 (0.87–6.30)
Marital status
Single	228 (98.3)	4 (1.7)	Reference	0.21
Married	16 (100.0)	0	–
Cohabitating	368 (96.6)	13 (3.4)	2.01 (0.65–6.25)
Separated	7 (87.5)	1 (12.5)	8.14 (0.80–82.6)
Daily income
≥$1 US	174 (99.4)	1 (0.6)	Reference	0.06
< $1 US	432 (96.2)	17 (3.8)	6.85 (0.90–51.8)
Sexually active
Yes	572 (97.4)	15 (2.6)	0.51 (0.11–2.32)	0.38
No	39 (95.1)	2 (4.9)	Reference
Age in years at first intercourse
Never had sex	38 (95.0)	2 (5.0)	Reference	0.26
< 11	23 (92.0)	2 (8.0)	1.65 (0.22–12.5)
11–15	294 (98.7)	4 (1.3)	0.26 (0.05–1.46)
16–20	201 (96.6)	7 (3.4)	0.66 (0.13–3.31)
21–25	7 (100.0)	0	–
26–30	0	1 (100.0)	–
Does not remember	42 (97.7)	1 (2.3)	0.45 (0.04–5.19)
Lifetime number of sex partners
0–1	208 (96.7)	7 (3.3)	Reference	0.10
2–5	230 (99.1)	2 (0.9)	0.26 (0.05–1.26)
> 5	104 (97.2)	3 (2.8)	0.86 (0.22–3.38)
Does not remember	65 (94.2)	4 (5.8)	1.83 (0.52–6.44)
Partner had another female partner
No	209 (99.5)	1 (0.5)	Reference	0.02
Yes	166 (97.1)	5 (2.9)	6.34 (0.73–54.8)
Do not know	201 (95.7)	9 (4.3)	9.50 (1.19–75.7)

Bonferroni correction (P < 0.0045).

^*Numbers may not add up to the total because of missing data.

^†Either HTLV-1 or -2.

^‡OR cannot be calculated because of empty cells. P values were calculated using the Fisher exact test.