Skip to main content
. Author manuscript; available in PMC: 2010 Jun 1.
Published in final edited form as: Neuropsychopharmacology. 2009 Aug 19;34(13):2721–2732. doi: 10.1038/npp.2009.112

Table 2.

Demographic and clinical parameters in adolescents who reported no prior smoking history at intake, stratified on smoking initiation during follow-up

Never
smoked
(n = 88)
Initiated
Smoking
(n = 21)
Statistic P
Age 14.9 (1.3) 14.8 (1.5) 0.49 NS
Gender 0.01 NS
 male 37 (42.0) 9 (42.9)
 female 51 (58.0) 12 (57.1)
Ethnicity 0.33 NS
 Caucasian 40 (45.5) 11 (52.4)
 Non-Caucasian 48 (54.5) 10 (47.6)
Socioeconomic score1 44.5 (10.7) 44.0 (12.6) 0.18 NS
Follow-up interval (years) 3.5 (1.1) 4.0 (0.9) 1.84 .07
Diagnosis at baseline 1.41 NS
 normal 32 (36.4) 5 (23.8)
 high-risk 28 (31.8) 7 (33.3)
 depression 28 (31.8) 9 (42.9)
Hamilton Depression Rating Scale 7.0 (9.3) 9.0 (9.7) 0.88 NS
Beck Depression Inventory 8.4 (10.2) 7.6 (8.7) 0.30 NS
Children’s Global Assessment Scale 71.7 (16.8) 70.1 (18.9) 0.38 NS
Stressful life experiences 3.9 (3.6) 5.1 (5.5) 1.20 .09
1

Higher score is associated with higher socioeconomic status (Hollingshead Scale)

Data are presented as means or raw numbers; data in parentheses reflect standard deviations or percentages