Categorical variables | N | Frequency (%) |
---|---|---|
Sex (miss = 0) | Â | Â |
   Female | 1080 | 49.18 |
   Male | 1116 | 50.82 |
Parental Smoking (miss = 6) | Â | Â |
   No | 547 | 24.98 |
   No parent figure | 32 | 1.46 |
   Yes | 1,611 | 73.56 |
Social Class (miss = 161) | Â | Â |
   Manual | 1,069 | 52.53 |
   Non-manual | 966 | 47.47 |
Family structure (miss = 0) | Â | Â |
   2-parent | 1571 | 71.54 |
   1-parent, | 351 | 15.98 |
   reconstituted | 224 | 10.20 |
   other | 50 | 2.28 |
Religion (miss = 277) | Â | Â |
   Protestant | 813 | 42.37 |
   Roman Catholic | 653 | 34.03 |
   Muslim/Islam | 48 | 2.50 |
   Other (Baptist, Jewish, etc) | 112 | 5.84 |
   None/Atheist/Agnostic | 293 | 15.27 |
Risk taking (miss = 11) | Â | Â |
   Very true | 205 | 9.38 |
   True | 1,188 | 54.37 |
   Untrue or very untrue | 792 | 36.25 |
Substance-use outcomes (moderate) | Â | Â |
Smoking*, age 15 (miss = 2) | 559 | 25.48 |
Smoking*, age 18/19 (miss = 980) | 350 | 28.78 |
Weekly alcohol, age 15 (miss = 8) | 547 | 25.00 |
Weekly alcohol, age 18/19 (miss = 980) | 570 | 46.88 |
Illegal drugs, ever, age 15 (miss = 5) | 882 | 40.26 |
Illegal drugs, ever, age 18/19 (miss = 980) | 679 | 55.84 |
Substance-use outcomes (severe) | Â | Â |
Regularly smoke**, age 15 (miss = 2) | 481 | 21.92 |
Regularly smoke**, age 18/19 (miss = 980) | 291 | 23.93 |
Drink most days, age 15 (miss = 8) | 69 | 3.15 |
Drink most days, age 18/19 (miss = 980) | 70 | 5.76 |
Illegal drugs, weekly use, age 15 (miss = 5) | 265 | 12.09 |
Illegal drugs, weekly use, age 18/19 (miss = 980) | 154 | 12.66 |