Skip to main content
. Author manuscript; available in PMC: 2012 May 1.
Published in final edited form as: Eval Program Plann. 2010 Dec 30;34(2):87–96. doi: 10.1016/j.evalprogplan.2010.12.002

Table 2.

Comparison of those completing the survey (n=3032) and those lost to follow-up (n=2654) at baseline (6th grade; Fall 2002).

Completers Attriters
Characteristic N % N % χ2 P-value
Treatment condition 1378 45.4 1208 45.5 2.34 0.126
Male 1039 34.3 1085 40.9 46.07 <0.001
Low socioeconomic status 1578 52.0 1354 51.0 2.06 0.357
Two-parent household1 1226 40.4 1003 37.8 14.90 0.037
Race/Ethnicity
 Hispanic 788 26.0 849 32.0 6.13 0.013
 White 439 14.5 290 10.9 15.03 <0.001
 Black2 1291 42.6 1188 44.8 - -
Mean SE Mean SE t P-value
Alcohol use3 5.44 0.03 5.64 0.04 3.64 <0.001
Marijuana use4 2.11 0.02 2.15 0.02 1.65 0.100
Violent behavior5 9.70 0.07 10.15 0.08 4.45 <0.001
Delinquent behavior6 9.28 0.04 9.73 0.05 6.69 <0.001
1

Referent category is all other family compositions

2

Referent category for race/ethnicity comparisons

3

5 item scale where higher scores indicate more alcohol use (Range 5–33).

4

2 item scale where higher scores indicate more marijuana use (Range 2–14).

5

6 item scale where higher scores indicate more violent behavior (Range 6–18).

6

7 item scale where higher scores indicate more delinquent behavior (Range 7–21).