Table 1.
Twelve-Month Prevalence of Crime Victimization in the National Crime Victimization Survey and Among Persons With Severe Mental Illness, Prevalence Ratios (Relative to the National Crime Victimization Survey), and 95% Confidence Intervals
| Type of Crime* | NCVS, % (95% CI) (n = 32 449)† | Persons With SMI, % (95% CI) (n = 936) | Prevalence Ratio (95% CI)‡ |
|---|---|---|---|
| Violent personal crimes | |||
| Any crimes of violence | 2.79 (2.5–3.1) | 25.32 (22.9–27.8) | 11.8 (9.9–14.0)§ |
| Completed violence | 1.49 (1.3–1.7) | 16.98 (14.9–19.0) | 13.5 (11.0–16.6)§ |
| Attempted/threatened violence | 1.45 (1.2–1.7) | 11.20 (9.6–12.8) | 8.6 (6.8–10.8)§ |
| Rape/sexual assault | 0.16 (0.10–0.22) | 2.64 (1.8–3.5) | 17.2 (10.4–28.5)§ |
| Rape/attempted rape | 0.11 (0.06–0.16) | 2.43 (1.6–3.3) | 22.5 (12.7–40.1)§ |
| Rape | 0.07 (0.03–0.11) | 1.60 (1.0–2.2) | 22.5 (11.4–44.5)§ |
| Attempted rape | 0.04 (0.01–0.07) | 0.83 (0.2–1.5) | 21.7 (7.7–61.2)§ |
| Sexual assault | 0.07 (0.03–0.10) | 1.00 (0.5–1.5) | 15.0 (7.2–31.6)§ |
| Robbery | 0.51 (0.4–0.6) | 3.94 (3.0–4.9) | 7.9 (5.7–11.2)§ |
| Completed/property taken | 0.31 (0.2–0.4) | 2.50 (1.8–3.2) | 8.2 (5.4–12.6)§ |
| With injury | 0.12 (0.1–0.2) | 0.87 (0.4–1.3) | 7.3 (3.7–14.5)§ |
| Without injury | 0.19 (0.1–0.3) | 1.74 (1.2–2.3) | 9.1 (5.4–15.4)§ |
| Attempted to take property | 0.21 (0.1–0.3) | 1.56 (1.0–2.1) | 7.5 (4.4–12.8)§ |
| With injury | 0.07 (0.02–0.1) | 0.39 (0.03–0.8) | 5.7 (1.8–17.5)§ |
| Without injury | 0.14 (0.08–0.2) | 1.17 (0.7–1.6) | 8.4 (4.5–15.4)§ |
| Assault | 1.54 (1.3–1.8) | 19.03 (16.9–21.1) | 15.0 (12.2–18.5)§ |
| Aggravated | 0.49 (0.4–0.6) | 6.05 (5.0–7.1) | 13.1 (9.6–17.7)§ |
| With injury | 0.28 (0.2–0.4) | 2.91 (2.2–3.6) | 10.6 (7.0–15.9)§ |
| Threatened with weapon | 0.21 (0.1–0.3) | 3.14 (2.4–3.9) | 15.5 (9.9–24.2)§ |
| Simple | 1.10 (0.9–1.3) | 14.46 (12.6–16.4) | 15.2 (11.9–19.5)§ |
| With minor injury | 0.32 (0.2–0.4) | 4.34 (3.3–5.4) | 14.1 (9.7–20.5)§ |
| Without injury | 1.43 (1.2–1.7) | 10.81 (9.2–12.5) | 8.4 (6.5–10.7)§ |
| Personal theft (theft of property from person) | 0.19 (0.1–0.3) | 21.22 (18.9–23.6) | 140.4 (90.6–217.7)§ |
| Property crimes | 8.44 (7.8–9.1) | 27.99 (25.2–30.7) | 4.2 (3.6–5.0)§ |
| Household burglary | 2.62 (2.2–3.0) | 11.65 (9.9–13.4) | 4.9 (3.9–6.2)§ |
| Completed | 2.10 (1.8–2.4) | 10.10 (8.4–11.8) | 5.2 (4.1–6.7) § |
| Forcible entry | 0.83 (0.6–1.0) | 2.54 (1.7–3.3) | 3.1 (2.1–4.7)§ |
| Unlawful entry without force | 1.29 (1.0–1.6) | 7.72 (6.2–9.3) | 6.4 (4.8–8.6)§ |
| Attempted forcible entry | 0.54 (0.4–0.7) | 2.16 (1.5–2.8) | 4.1 (2.6–6.3)§ |
| Motor vehicle theft | 0.48 (0.3–0.7) | 1.18 (0.7–1.6) | 2.5 (1.4–4.3)|| |
| Completed | 0.37 (0.2–0.6) | 1.03 (0.6–1.4) | 2.8 (1.5–5.3)|| |
| Attempted | 0.12 (0.05–0.2) | 0.15 (−0.02 to 0.3)¶ | 1.3 (0.4–4.7) |
| Property theft | 5.74 (5.2–6.3) | 17.83 (15.5–20.1) | 3.6 (3.0–4.3)§ |
| Completed | 5.58 (5.0–6.1) | 17.69 (15.4–20.0) | 3.6 (3.0–4.4)§ |
| <$50 | 2.00 (1.7–2.3) | 6.67 (5.4–8.0) | 3.5 (2.7–4.6)§ |
| $50–$249 | 2.12 (1.8–2.5) | 6.68 (5.1–8.3) | 3.3 (2.4–4.5)§ |
| ≥$250 | 1.33 (1.1–1.6) | 5.65 (4.3–7.0) | 4.4 (3.2–6.1)§ |
| Unknown | 0.43 (0.3–0.6) | NA# | NA# |
| Attempted | 0.18 (0.1–0.3) | 0.22 (0.1–0.4) | 1.2 (0.6–2.5) |
Abbreviations: CI, confidence interval; NA, not applicable; NCVS, National Crime Victimization Survey; SMI, severe mental illness.
Categories and subcategories of type of crime are those used in NCVS publications.
The n shown is the mean for 1997 (n = 35 044), 1998 (n = 32717), and 1999 (n = 29 585). The NCVS prevalences include all persons living in the “central cities” (ie, the largest cities of each standard metropolitan area) of metropolitan statistical areas weighted to the age, sex, racial/ethnic, and income distribution of our sample of persons with SMI.
Ratio of prevalence for persons with SMI to prevalence reported in NCVS.
The 2-tailed probability that the confidence bound of the prevalence ratio overlaps with 1.0 (no effect) is <.001.
The 2-tailed probability that the confidence bound of the prevalence ratio overlaps with 1.0 (no effect) is <.01.
Because the Taylor series linearization refers to the t distribution to calculate confidence bounds, the lower computed confidence bound of the prevalence ratio among persons with SMI may be below 0.
The sample rate of theft of unknown value for persons with SMI is 0; confidence bounds and prevalence ratios are not reported.