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Table 1 Characteristics of adolescent girls (N = 841) in a study on second-hand smoke (SHS) exposure

From: An examination of exposure and avoidance behavior related to second-hand cigarette smoke among adolescent girls in Canada

Demographics  
Age  
  13 years 144 (17.1%)
  14 years 479 (57.0%)
  15 years 218 (25.9%)
Grade  
  8 251 (30.0%)
  9 578 (69.0%)
  10 8 (1.0%)
Ethnicity  
  Caucasian 419 (50.1%)
  Aboriginal 111 (13.3%)
  Asian 286 (34.2%)
  Other 21 (2.5%)
Family Income (self-reported)  
  Below average 46 (5.9%)
  Average 611 (78.0%)
  Above average 126 (16.1%)
Smoking behavior and intentions  
Ever tried smoking  
  Yes 97 (11.5%)
Current smoker (smoked ≥once in past 30days); among those who indicated they had ever tried smoking (N=97)  
  Yes 38 (40%)
Age at first cigarette; among those who indicated they had ever tried smoking (N=97)  
  ≤12 years 39 (41.5%)
  13 years 29 (30.9%)
  ≥14 years 26 (27.7%)
Smoking intentions  
  Definitely/probably yes 28 (3.9%)
  Probably not 153 (21.3%)
  Definitely not 539 (74.9%)
SHS exposure  
Parents smoke  
  Yes 236 (31.7%)
Friends smoke  
  Yes 128 (20.3%)
Home smoking restrictions  
  Yes 692 (87.0%)