"Drugs only
"5.1 There were 1514 individuals in treatment for drug misuse. Of these, 1042 (69%) were male and 472 (31%) were female (Table 3). The largest proportion of those in treatment for drug misuse were aged 18 years or over (94%; 1417 individuals), whilst 6% (97 individuals) were aged under 18 years (Figure 3; Table 4).
"Alcohol only
"5.2 There were 3111 individuals in treatment for alcohol misuse. Of these, 2056 (66%) were male and 1055 (34%) were female (Table 3). The majority of those in treatment for alcohol misuse were aged 18 years or over (97%; 3020 individuals), whilst 3% (91 individuals) were aged under 18 years (Figure 3; Table 4).
"Drugs and Alcohol
"5.3 There were 1291 individuals in treatment for both drug and alcohol misuse. Of these, 968 (75%) were male and 323 (25%) were female (Table 3). The majority of individuals in treatment for both drugs and alcohol were aged 18 years or over (84%; 1081 individuals), while 16% (210 individuals) were aged under 18 years (Figure 3; Table 4)."

Source

Northern Ireland Statistics & Research Agency, Statistical Bulletin PHIRB 2/2012, "Census of Drug and Alcohol Treatment Services in Northern Ireland: 1st March 2012" (June 2012), p. 3.
http://www.dhsspsni.gov.uk/ce…