Table 1.
Demographic characteristics and eye blink responses to the startle stimuli of Mexican American participants comparing alcohol dependence groups, Antisocial personality disorder/conduct disorder groups, and anxiety or affective disorder groups (n = 340)
| Demographic | Total sample (n =340) | Alcohol dependence (n = 89) | Antisocial personality disorder and/or conduct disorder (n = 41) | Anxiety or affective disorder (n = 97) | Other drug dependence (n=112) |
|---|---|---|---|---|---|
| Age (years) | 23.5 (3.69) | 24.0 (3.77) | 24.6 (5.76) | 22.9 (3.94) | 23.5 (3.17) |
| Gender (n) | |||||
| Male | 135 | 44 1 | 23 1 | 32 | 51 |
| Female | 205 | 47 | 18 | 65 | 61 |
| Years of education | 13.24 (1.84) | 13.26 (1.89) | 12.3 (1.92) 2 | 13.1 (1.97) | 12.64 (2.12) 2 |
| Income | |||||
| < $20,000 | 55 | 15 | 13 3 | 14 | 19 3 |
| > $20,000 | 285 | 74 | 28 | 83 | 93 |
| Eye blink amplitude to startle (microvolts) | 42.31 (41.30) | 41.07 (41.13) | 39.38 (41.17) | 37.69 (40.87) | 41.33 (40.96) |
| Eye blink amplitude to startle following prepulse (microvolts) | 41.29 (40.93) | 40.1 (40.47) | 36.83 (40.53) | 36.32 (40.25) | 39.66 (40.34) |
| % prepulse inhibition | 2.41 | 2.36 | 6.48 | 3.63 | 4.04 |
Values are Means (SD) unless indicated
1
p < 0.05 gender difference diagnosis vs. no diagnosis
2
p < 0.05 education difference diagnosis vs. no diagnosis
3
p < 0.05 income difference diagnosis vs. no diagnosis