Table 1

Characteristics and exposure to tobacco smoke of participants in the Children's Health Study, 1993

Total no. (%)
of children
Any ETS exposure
No. exposed (% of subgroup exposed)
Current ETS exposure No. exposed (% of subgroup exposed) In utero exposure
No. exposed (% of subgroup exposed)
Grade
 41660  (50%)603  (45%)351  (47%)303  (49%)
 7863 (25%)352 (27%)190 (25%)154 (25%)
 10834 (24%)370 (28%)208 (28%)163 (26%)
Sex
 Girls1728 (52%)705 (53%)395 (53%)318 (51%)
Race
 White2148 (67%)899 (69%)518 (71%)473 (78%)
 Black158 (5%)72 (6%)48 (7%)32 (5%)
 Asian172 (5%)50 (4%)31 (4%)4 (1%)
 Native American42 (1%)26 (2%)11 (2%)11 (2%)
 Other470 (15%)143 (11%)66 (9%)38 (6%)
 Mixed230 (7%)105 (8%)59 (8%)50 (8%)
Hispanic ethnicity
 Yes840 (26%)295 (23%)154 (21%)105 (17%)
Health insurance
 Yes2720 (84%)1073 (83%)592 (8%)517 (85%)
Asthma1-150 (ever diagnosed)471 (14%)194 (15%)120 (16%)109 (18%)
Hayfever
 Yes541 (18%)218 (18%)127 (18%)111 (20%)
Child smoking
 Yes98 (3%)62 (5%)48 (6%)30 (5%)
Household income ($)
 <7500156 (6%)86 (8%)56 (9%)49 (9%)
 7500–14 999276 (10%)157 (14%)111 (18%)78 (15%)
  15 000–29 999430 (16%)214 (18%)134 (22%)101 (19%)
  30 000–49 000756 (28%)307 (27%)154 (24%)141 (26%)
  50 000–99 000933 (33%)313 (27%)147 (24%)150 (27%)
 100 000+184 (7%)50 (5%)21 (3%)19 (4%)
Parental education
 <12th grade476 (15%)217 (17%)143 (19%)99 (16%)
 =12th grade672 (21%)310 (24%)183 (25%)160 (26%)
 Some college1343 (41%)595 (45%)329 (45%)289 (48%)
 4 year college342 (11%)96 (7%)51 (7%)30 (5%)
 Postgraduate390 (12%)89 (7%)32 (4%)30 (5%)
  • ETS = environmental tobacco smoke.

  • 1-150 Self-reported physician diagnosed asthma.