Table 4
Multivariate analysis predicting lifetime drug abuse
Characteristics
Jamaica
Guyana
Step 1
R
2
ΔR²
R
2
ΔR²
Social factors
9.9**
–
16.9***
–
Step 2
SES
19.7**
9.8
23.3***
6.4*
Step 3
Race/ethnicity
–
–
31.1***
7.8***
*p<0.05; **p<0.01; ***p<0.001.