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Table 2 Differences regarding age at death / year of death depending on the drug involved

From: Drug-related celebrity deaths: A cross-sectional study

 

Mean age at death

Mean year of death

Mean (SD)

CI 95% of mean difference

Significance of t-test a:

p-value

Mean (SD)

CI 95% of mean difference

Significance of t-testa

p-value

All (ages 18–82)

38.6 (12.1)

n/A

n/A

1995 (13.0)

n/A

n/A

Heroin use (yes/no)

34.8 (8.9)

−8.9–−3.1

p < 0.01

1995 (12.3)

−3.9–3.3

p = 0.868

Prescription opioid use (yes/no)

35.4 (7.7)

−7.0–−1.0

p = 0.01

2003 (7.9)

7.7–13.9

p < 0.01

Other prescription drug use (yes/no)

41.9 (13.1)

2.4–9.0

p < 0.01

1993 (14.2)

−3.3–0.9

p = 0.13

Cocaine use

(yes/no)

37.3 (10.9)

−5.4–1.7

p = 0.297

1991 (10.3)

2.3–8.9

p < 0.01

  1. a T-test for independent samples was conducted to examine the mean difference of age at death and mean year of death in users and non-users
  2. Sample size: 220; Degrees of freedom (df) 218