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Table 3 Adjusted odds ratios (AORs) and 95% confidence intervals [CI) of factors associated with current smoking among in-school American youth

From: Current cigarette smoking among in-school American youth: results from the 2004 National Youth Tobacco Survey

Characteristic Total AOR (95% CI) Male Female
Age (years)    
   Total    
   ≤ 12 1.00 1.00 1.00
   13 1.97 [1.57, 2.46] 1.91 [1.42, 2.58] 2.05 [1.47, 2.86]
   14 3.28 [2.64, 4.08] 3.24 [2.41, 4.35] 3.35 [2.42, 4.64]
   15 3.63 [2.92, 4.50] 3.63 [2.71, 4.86] 3.63 [2.62, 4.99]
   16+ 5.59 [4.57, 6.83] 5.62 [4.28, 7.37] 5.56 [4.14, 7.55]
Ethnicity    
   White 1.00 1.00 1.00
Black or African American 0.52 [0.44, 0.60] 0.41 [0.34, 0.51] 0.70 [0.56, 0.87]
   Asian 0.45 [0.35, 0.58] 0.32 [0.22, 0.46] 0.65 [0.46, 0.92]
   Hispanic 0.81 [0.71, 0.92] 0.62 [0.51, 0.75] 1.12 0.93, 1.35]
American Indian/Alaska Natives 0.98 [0.79, 1.22] 0.75 [0.55, 1.03] 1.31 [1.00, 1.77]
Native Hawaiian/ Other Pacific Islander 0.69 [0.52, 0.93] 0.53 [0.33, 0.87] 0.89 [0.60, 1.31]
Lived with a cigarette smoker    
   No 1.00 1.00 1.00
   Yes 2.73 [2.46, 3.04] 2.97 [2.57, 3.43] 2.48 [2.13, 2.89]
Closest friends smoked cigarettes    
   None 1.00 1.00 1.00
   One 2.27 [1.91, 2.71] 2.18 [1.70, 2.80] 2.42 [1.91, 3.08]
   Two or more 2.71 [2.21, 3.33] 2.87 [2.05, 4.02] 2.64 [2.11, 3.55]
Perception that it is safe to smoke for only a year or two, if quit after that    
   Definitely not 1.00 1.00 1.00
   Probably not 4.12 [3.67, 4.63] 4.54 [3.89, 5.3] 3.62 [3.04, 4.31]
   Probably yes 9.35 [7.92, 11.04] 9.78 [7.64, 12.53] 8.86 [7.06, 11.11]
   Definitely yes 11.82 [8.99, 15.54] 10.35 [6.35, 16.84] 12.21 [8.79, 16.98]
Pocket money ($/week)    
   None 1.00 1.00 1.00
   1–10 1.28 [1.06, 1.54] 1.32 [1.03, 1.69] 1.19 [1.00, 1.59]
   11–20 1.78 [1.48, 2.13] 1.70 [1.34, 2.17] 1.88 [1.43, 2.47]
   21–50 2.21 [1.84, 2.67] 2.06 [1.60, 2.66] 2.41 [1.83, 3.18]
   51–100 2.47 [2.00, 3.08] 2.48 [1.85, 3.33] 2.46 [1.79, 3.39]
   >100 2.89 [2.34, 3.56] 2.66 [1.97, 3.59] 3.17 [2.36, 4.25]
  1. Current smoking defined as having smoked cigarette at least one day in the last 30 days All groups other than "Hispanic" are non Hispanic