Table 4.

Improvements in sexual behavior^* over time, from baseline (n = 40) to follow-up (n = 40)

Behavior	Baseline [% (n)]	Follow-up [% (n)]	χ2 (df); P-value
Unsafe sex with a stranger	10.0 (4)	0 (0)	4.2 (1); <0.05
Unsafe sex for drugs	10.0 (4)	0 (0)	4.2 (1); <0.05
Unsafe sex for money	15.0 (6)	0 (0)	6.4 (1); <0.02
Always use a condom with regular partner	20.0 (8)	42.5 (17)	4.7 (1); <0.05

Note:

^*Sexual behavior measured using the Opiate Treatment Index quantifying sexual behavior during (a) the month before baseline and (b) the month before follow-up interview.

Abbreviations: χ², chi-square; df, degrees of freedom.