Table 1.
Distribution of Lifetime Anger Attacks Among 6483 Adolescents in the NCS-A
| Characteristic | Prevalence in the Total Sample (SE) | Mean (SE) No. of Attacks | Extreme, Range (IQR)a | Total No. of Attacksb | Proportion of All Attacks in the Population, % (SE) |
|---|---|---|---|---|---|
| Anger attacks among respondents who do not qualify for a diagnosis of IED | |||||
| 1–2 Lifetime attacks | 29.3 (0.9) | 1.5 (0.0) | 1–2 (1–2) | 43.3 | 5.7 (0.5) |
| ≥3 Attacks not out of proportion | 8.0 (0.6) | 12.3 (1.5) | 3–500 (3–10) | 98.4 | 12.9 (1.8) |
| ≥3 Out-of-proportion attacks not out of control | 12.1 (0.7) | 16.2 (2.4) | 3–500 (3–10) | 195.0 | 25.5 (4.0) |
| ≥3 Out-of-proportion/out-of-control attacks disqualified because of diagnostic hierarchy and/or organic exclusions | 6.2 (0.6) | 47.0 (7.7) | 3–500 (5–40) | 290.3 | 38.0 (4.5) |
| Anger attacks among respondents who qualify for a diagnosis of IEDc | |||||
| Broadly defined IED | 7.8 (0.7) | 17.6 (3.6) | 3–500 (4–10) | 137.0 | 17.9 (4.0) |
| Narrowly defined IED | 5.3 (0.5) | 22.6 (4.8) | 3500 (5–20) | 118.7 | 15.5 (0.1) |
| Broadly defined–only IED | 2.5 (0.4) | 7.2 (2.0) | 3–50 (3–5) | 18.3 | 2.4 (0.1) |
| Prevalence of attacks within the whole population | 63.3 (1.0) | 12.1 (0.9) | 1–500 (2–5) | 764.1 | 100.0 (0.0) |
Abbreviations: IED, intermittent explosive disorder; IQR, interquartile range; NCS-A, National Comorbidity Survey Replication Adolescent supplement.
a
25th to 75th percentiles of the frequency distribution.
b
Prevalence × mean.
c
Narrowly defined, 3 or more annual attacks in at least 1 year of life, including physical assault or property damage; broadly defined–only, 3 or more lifetime attacks either without ever having as many as 3 attacks in a single year or 3 or more annual attacks in at least 1 year but attacks involved only threatening someone; broadly defined, narrowly defined or broadly defined–only.