Table 2

 Characteristics of potential overdose bystanders trained in overdose education and nasal naloxone distribution program in 19 Massachusetts communities*, 2006-09. Numbers are percentages (number/number in group) unless stated otherwise

CharacteristicsAll enrollees (n=2912)Users† (n=2007)Non-users (n=905)
Mean (SD) age (years)38.1 (12.1)36.1 (11.1)42.6 (13.0)
Female and male to female transgender44.4 (1274/2870)38.1 (751/1973)58.3 (523/897)
Race or ethnicity:
 White, non-Hispanic69.5 (2013/2896)71.2 (1421/1996)65.8 (592/900)
 Hispanic16.2 (468/2896)17.0 (339/1996)14.3 (129/900)
 Black or African American, non-Hispanic10.5 (305/2896)8.7 (174/1996)14.6 (131/900)
 Other, non-Hispanic3.8 (110/2896)3.1 (62/1996)5.3 (48/900)
Detox in past year47.3 (950/2007)NA
Incarceration in past year27.1 (460/1695)NA
Lifetime history of overdose54.0 (976/1808)NA
 Received naloxone at last overdose 60.0 (503/838)NA
Overdose witnessed ever73.6 (2036/2767)80.8 (1571/1944)56.5 (465/823)
Reported at least one overdose rescue7.3 (212/2912)9.2 (184/2007)3.1 (28/905)

NA=not available.

Denominators less than total number for each group are due to missing information.

*Geographically distinct cities and towns.

†Enrollees who self reported active substance misuse, currently engaged in treatment or in recovery at enrollment.