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Table 4 Adjusted drug involvement by manner of death and change vs. reported proportiona

From: Drug poisoning deaths in the United States, 1999–2012: a statistical adjustment analysis

Drug category

% [95 % CI]

Accidental

Intentional

Undetermined intent

Adjustedb

% Differencec

Adjustedb

% Differencec

Adjustedb

% Differencec

1999

 Narcotics

86.9 [86.0–87.7]

29.9 [28.6–31.2]

36.2 [33.3–39.2]

52.2 [40.1–64.9]

81.0 [78.6–83.4]

18.8 [15.4–22.3]

  Opioid analg.

34.6 [33.2–36.0]

33.1 [27.7–38.5]

28.9 [26.1–31.7]

52.1 [37.2–66.9]

25.7 [23.0–28.4]

23.1 [10.2–35.9]

  Other narcotics

68.6 [67.4–69.9]

36.0 [33.5–38.4]

9.8 [7.9–11.6]

62.9 [32.0–93.7]

63.1 [60.3–65.8]

19.8 [14.6–25.0]

 Sedatives

13.3 [12.2–14.4]

67.6 [53.6–81.7]

30.8 [28.0–33.7]

62.0 [47.0–77.1]

10.7 [8.5–12.9]

56.8 [24.5–89.2]

 Psychotropics

15.9 [14.7–17.0]

46.7 [36.2–57.2]

45.0 [42.0–48.0]

55.7 [45.3–66.1]

18.8 [16.2–21.3]

40.2 [21.0–59.4]

 Other specified

6.9 [6.2–7.6]

17.5 [5.8–29.1]

18.7 [16.3–21.1]

45.4 [26.9–64.0]

5.9 [4.3–7.6]

48.2 [7.2–89.1]

 Unspecified

33.1 [31.8–34.4]

−32.6 [−29.9 – −35.2]

55.0 [52.1–57.9]

−16.4 [−12.0 – −20.9]

25.0 [22.4–27.5]

−31.3 [−24.3 – −38.4]

 >1 Drug classd

30.1 [28.7–31.5]

57.8 [50.4–65.3]

33.6 [30.5–36.7]

92.9 [75.2–110.6]

22.6 [19.8–25.4]

59.5 [39.8–79.2]

2012

 Narcotics

87.4 [86.9–87.8]

32.9 [32.2–33.6]

44.4 [42.5–46.3]

38.7 [32.8–44.6]

76.9 [74.7–79.1]

35.8 [32.0–39.6]

  Opioid analg.

56.5 [55.8–57.3]

41.4 [39.6–43.3]

40.0 [38.1–41.9]

39.6 [33.1–46.2]

57.7 [55.1–60.3]

38.5 [32.3–44.8]

  Other narcotics

43.9 [43.2–44.6]

36.3 [34.0–38.5]

6.2 [5.2–7.1]

40.3 [18.7–62.0]

30.8 [28.4–33.1]

39.0 [28.3–49.6]

 Sedatives

29.7 [29.0–30.4]

64.8 [60.7–68.9]

36.2 [34.3–38.0]

48.6 [40.9–56.2]

24.6 [22.2–27.0]

56.4 [41.1–71.7]

 Psychotropics

23.6 [23.0–24.3]

44.8 [40.8–48.9]

41.4 [39.5–43.3]

46.9 [40.2–53.6]

27.0 [24.6–29.5]

50.9 [37.3–64.6]

 Other specified

8.2 [7.8–8.7]

51.8 [43.9–59.8]

28.8 [27.1–30.5]

33.4 [25.5–41.3]

8.9 [7.3–10.5]

46.6 [20.2–73.0]

 Unspecified

32.2 [31.5–32.9]

−33.3 [−31.9 – −34.8]

48.6 [46.7–50.4]

−18.2 [−15.1 – −21.3]

30.6 [28.2–32.9]

−35.4 [−30.5 – −40.4]

 >1 Drug classd

43.2 [42.4–44.0]

60.2 [57.3–63.1]

43.3 [41.3–45.2]

56.6 [49.7–63.6]

39.2 [36.5–41.9]

53.2 [42.8–63.7]

  1. aData from the Multiple Cause of Death files
  2. bAdjusted proportions are average predicted values from probit models, where at least one specific drug is assumed to be mentioned for all poisoning deaths (SPECIFY = 1). Models also control for: sex, race (black, other), Hispanic, currently married, education (high school dropout, high school graduate, some college, college graduate), age (≤20, 21–30, 31–40, 41–50, 51–60, 61–70, 71–80, >80), day of the week of death, and census region
  3. c% Difference shows the percentage difference between adjusted proportions and those obtained directly from mentions on death certificates
  4. dTwo or more of the drug types: opioid analgesics, other narcotics, sedatives, psychotropics, or other specified drugs