Table 1.
Descriptive statistics by income quintile of a sample of respondents from Waves I to III of Add Health
|
|
|
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|---|---|---|---|---|---|---|
| Poorest | 2nd poorest | Middle | 2nd richest | Richest | Total | |
|
|
|
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| No. of respondents | 2,107 | 2,154 | 2,195 | 2,119 | 2,216 | 10,791 |
| No. of STI diagnoses | 14.7% (1.4%) | 10.6% (1.2%) | 8.3% (0.9%) | 7.4% (0.7%) | 5.2% (0.6%) | 9.2% (0.6%) |
| Individual Race/Ethnicity | ||||||
| White non-Hispanic | 45.8% (4.5%) | 62.5% (3.7%) | 74.4% (3.0%) | 82.7% (2.1%) | 83.4% (2.0%) | 70.0% (2.9%) |
| Black non-Hispanic | 29.1% (4.2%) | 18.6% (2.7%) | 11.7% (2.0%) | 6.5% (1.1%) | 6.9% (1.2%) | 14.4% (2.1%) |
| Hispanic | 20.5% (3.7%) | 13.5% (2.3%) | 9.4% (1.4%) | 7.2% (1.2%) | 5.1% (0.7%) | 11.0% (1.7%) |
| Other non-Hispanic | 4.6% (1.1%) | 5.4% (1.3%) | 4.4% (1.1%) | 3.6% (0.8%) | 4.6% (1.0%) | 4.5% (0.8%) |
| Sex | ||||||
| Male | 48.6% (1.7%) | 49.8% (1.4%) | 46.7% (1.3%) | 49.4% (1.9%) | 49.3% (1.4%) | 48.7% (0.7%) |
| Female | 51.4% (1.7%) | 50.2% (1.4%) | 53.3% (1.3%) | 50.6% (1.9%) | 50.7% (1.4%) | 51.3% (0.7%) |
| Age at baseline | ||||||
| <14 | 18.9% (2.5%) | 20.5% (2.4%) | 21.6% (2.9%) | 21.0% (2.8%) | 18.8% (2.7%) | 20.1% (2.2%) |
| 14 | 20.1% (2.4%) | 18.0% (1.8%) | 15.7% (1.4%) | 15.9% (1.6%) | 16.1% (1.7%) | 17.1% (1.4%) |
| 15 | 17.5% (1.2%) | 17.2% (1.3%) | 18.0% (1.3%) | 16.7% (1.2%) | 17.2% (1.6%) | 17.4% (0.9%) |
| 16 | 15.8% (1.6%) | 15.6% (1.4%) | 17.0% (1.5%) | 17.7% (1.5%) | 16.0% (1.4%) | 16.4% (1.1%) |
| 17 | 15.2% (1.7%) | 14.4% (1.4%) | 15.2% (1.2%) | 16.5% (1.5%) | 19.6% (1.6%) | 16.2% (1.1%) |
| >17 | 12.5% (1.7%) | 14.4% (1.5%) | 12.5% (1.3%) | 12.2% (1.1%) | 12.3% (1.1%) | 12.8% (1.0%) |
| Urbanicity | ||||||
| Urban | 33.1% (5.6%) | 28.3% (4.6%) | 23.7% (4.0%) | 21.3% (3.7%) | 22.6% (4.5%) | 25.7% (3.9%) |
| Suburban | 45.6% (5.8%) | 53.6% (5.2%) | 58.8% (5.5%) | 65.2% (5.0%) | 67.2% (5.6%) | 58.2% (4.8%) |
| Rural | 21.2% (5.3%) | 18.0% (4.3%) | 17.5% (5.5%) | 13.4% (4.3%) | 10.2% (4.1%) | 16.0% (4.2%) |
| Region | ||||||
| West | 12.6% (3.5%) | 14.1% (3.1%) | 15.7% (3.3%) | 17.7% (3.6%) | 22.1% (4.8%) | 16.5% (3.2%) |
| Midwest | 28.9% (5.7%) | 31.3% (5.2%) | 35.0% (5.9%) | 31.5% (5.6%) | 33.3% (6.8%) | 32.0% (5.1%) |
| South | 47.6% (5.9%) | 41.6% (5.0%) | 35.4% (4.8%) | 34.5% (4.9%) | 27.5% (4.7%) | 37.1% (4.5%) |
| Northeast | 11.0% (3.2%) | 13.0% (3.3%) | 13.9% (3.3%) | 16.4% (3.8%) | 17.1% (4.2%) | 14.3% (3.1%) |
| Type of school | ||||||
| Public | 98.1% (1.0%) | 95.0% (1.9%) | 93.2% (2.3%) | 91.8% (2.9%) | 88.4% (3.8%) | 93.3% (2.0%) |
| Private | 1.9% (1.0%) | 5.0% (1.9%) | 6.8% (2.3%) | 8.2% (2.9%) | 11.6% (3.8%) | 6.7% (2.0%) |
|
Per capita family income, equivalized scale $ |
||||||
| Mean (95% confidence interval) | 4,972 (4,783-5,160) | 12,139 (12,009-12,270) | 18,674 (18,543-18,805) | 26,425 (26,255-26,595) | 49,428 (46,068-52,787) | 22,660 (20,972-24,348) |
Percentages (and Standard Errors) are based on data weighted for non-random sampling and non-response.