Table 3.

Logistic regression for ever experimentation (n = 1,286) and new experimentation (n = 1,129)

Ever (n = 1,286)New (n = 1,129)
OR (95% CI)POR (95% CI)P
At least one friend smokes1.74 (1.52-1.99)<0.0011.16 (1.01-1.34)0.041
Age (y)1.48 (1.26-1.72)<0.0011.34 (1.13-1.58) <0.001
At least one detentions 1.34 (1.16-1.54)<0.0011.23 (1.06-1.44)0.006
Male1.33 (1.14-1.55)<0.0011.24 (1.02-1.46)0.011
At least one household member smokes1.30 (1.13-1.50)<0.001− (−)
Anxiety score1.28 (1.10-1.49)0.002− (−)
Exposure to Smoking in movies 1.27 (1.10-1.48)0.0021.19 (1.01-1.40)0.037
Risk taking tendencies1.20 (1.04-1.39)0.0151.18 (1.02-1.38)0.031

NOTE: Ever experimenting includes participants who reported having experimented on any of the five contacts from baseline to the final follow-up. Adjusted for parental educational attainment (OR= 0.93; 95% CI, 0.80-1.08). New experimentation includes participants who reported that they had not experimented at baseline and reported that they had experimented on one of the four subsequent contacts. Adjusted for parental educational attainment (OR = 0.92; 95% CI, 0.78-1.07).

Abbreviation: OR, odds ratio.