Reports on HIV/AIDS: 1990

AUGUST 10, 1990, MMWR, Vol. 39, No. 31, pp. 529, 535-538
TABLE 1. Reported intravenous (IV)-drug use behaviors at initial and first 6-month
follow-up interviews - selected cities, United States, 1987-1989
Category Miami Chicago Philadelphia Houston San Francisco
Description of study population
No. 376 561 100 415 132
Male 76% 72% 74% 79% 73%
Age < 40 years 77% 53% 78% 80% 52%
Black 80% 55% 57% 56% 58%
Entered drug treatment 14% 25% 32% 22% 35%
Reported frequency of
IV-drug use at follow-up
No. 370 557 100 415 132
Stopped* 47% 16% 26% 32% 17%
Decreased without stopping 28% 40% 36% 28% 32%
No change 15% 23% 21% 15% 33%
Increased 11% 22% 17% 24% 19%
Reported not sharing
drug-injection equipment
with friends
At initial interview 198/371 101/559 29/97 203/430 52/132
(53%) (18%) (30%) (47%) (39%)
At follow-up' 176/239 242/519 48/77 294/336 75/110
(74%) (47%) (62%) (88%) (68%)
Reported not borrowing
previously used
drug-injection equipment
At initial interview 187/370 226/556 38/97 205/426 64/132
(51%) (41%) (39%) (48%) (48%)
At follow-upý 169/240 316/511 51/77 217/335 68/110
(70%) (62%) (66%) (65%) (62%)
Reported using
bleach for cleaning
drug-injection equipment
No.' 240 519 77 335 110
Always used bleach
At initial interview 3% 10% 6% 4% 36%
At follow-up 11% 23% 16% 19% 43%
Bleach use at follow-up
Increased 20% 39% 28% 32% 26%
No change 71% 48% 69% 64% 53%
Decreased 9% 13% 3% 4% 21%
*Stopped for at least 1 month immediately before follow-up interview.
tPersons reporting not sharing drug-injection equipment during the 6 months before the
follow-up interview among those still using IV drugs at follow-up.
gPersons reporting not borrowing drug-injection equipment during the 6 months before the
follow-up interview among those still using IV drugs at follow-up.
'Of persons continuing to use IV drugs, except for those who reported always using new needles.

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