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Table 2 Sociodemographics characteristics and health risk factors YRBS weighted data for freshman and sophomores from 2007 to 2013

From: Gun carrying among freshmen and sophomores in Chicago, New York City and Los Angeles public schools: the Youth Risk Behavior Survey, 2007-2013

  Chicago
N = 198,422
New York City
N = 582,802
Los Angeles
N = 356,225
Grade
 9th 49.69% 50.20% 52.92%
 10th 50.31% 49.80% 47.08%
Sex
 Male 53.28% 52.59% 51.19%
 Female 46.72% 47.41% 48.81%
Ethnicity
 Non-Hispanic White 6.68% 12.35% 9.39%
 African Americans 39.49% 26.28% 4.93%
 Hispanic 43.90% 42.34% 44.30%
 Other/Unknown 9.94% 19.03% 41.37%
Health Risk Factors
 Ever feel sad or hopeless in last 12 months* 29.91% 27.12% 29.76%
 Ever considered suicide in last 12 months* 14.12% 12.43% 13.93%
 Ever attempted suicide in last 12 months** 10.08% 7.33% 7.88%
 Smoked cigarettes in the last 30 days** 18.54% 12.39% 14.13%
 Drank alcohol in last 30 days** 44.09% 34.53% 39.51%
 Smoked marijuana in the last 30 days** 28.73% 18.38% 22.01%
 Injected drugs ever** 7.41% 8.27% 4.50%
 Greater than 2 sex partners in last 3 months** 29.75% 22.72% 16.59%
  1. *p < 0.05
  2. **p < 0.001