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. Author manuscript; available in PMC: 2019 Oct 31.
Published in final edited form as: AIDS Educ Prev. 2019 Feb;31(1):1–16. doi: 10.1521/aeap.2019.31.1.1

TABLE 2.

Likely Causes of Use by Type of Drug User

Synthetic Drug Users
Heroin Users
% or Mean n % or Mean n
Social control:
Composite social control index variable (mean) 16.0** 729 15.6 705
Having good/very good relationship to parents (%) 72.6 530 74.2 523
Felt going to school is useless (%) 44.8 323 43.2 304
Felt working to earn a living is pointless/boring (%) 43.1 311 39.3 276
Agree that life does not need to be serious (%) 60.7 438 63.9 449
Agree that one cannot always follow rules (%) 66.5 480 64.5 454
Felt life aimless and empty (%) 45.6 329 41.6 293
Felt the need to release extra energy (%) 51.7 374 50.1 353
Social influence:
Composite social influence index variable (mean) 27.1** 725 26.1 705
Had drug using friends before own use (%) 55.0** 377 44.7 304
Number of drug using friends (mean) 2.6** 686 0.8 680
Peer/family/setting influence as reasons to use (%)a 67.7** 494 70.6 498
Sensation seeking:
Composite sensation seeking index variable (mean) 12.9 724 13.0 705
Sensation seeking as reason to use (%)b 77.5 566 78.9 556

Note.

a

Includes self-reported peer, family, or environmental influence as reasons for drug use;

b

includes self-reported curiosity and sensation seeking as reason for drug use.

**

p < .01.