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Table 2 Reported use of substances, doctor's evaluation and findings in urine samples1 at admission.

From: Effects of legal and illegal use of benzodiazepines at acute admission to a psychiatric acute department

  Legal (n = 89) Illegal (n = 30) No (n = 108) All (n = 227) P
Patient report      
   Use of alcohol last week2 (%) 29 (33) 15 (50) 49 (45) 93 (41) Ns
   Use of illegal opiates last week3 (%) 3 (3) 7 (23) 0 (0) 10 (4) <0.001
   Use of cannabis last week2 (%) 2 (2) 9 (30) 8 (7) 19 (8) <0.001
   Use of illegal stimulants last week3 (%) 1 (1) 5 (17) 4 (4) 10 (4) 0.004
Doctor's assessment      
   Patient regarded clinically affected by a substance3 (%) 17 (19) 11 (37) 7 (6) 35 (15) <0.001
Urine samples2 n = 75 n = 30 n = 91 n = 196 Ns
   Ethanol in urine3 (%) 4 (4) 2 (7) 5 (5) 11 (5) Ns
   Illegal opiates in urine3 (%) 3 (3) 5 (17) 2 (2) 10 (4) 0.015
   Cannabis in urine2 (%) 6 (7) 7 (23) 7 (6) 20 (9) 0.036
   Illegal stimulants in urine3 (%) 0 (0) 5 (17) 4 (4) 9 (4) 0.001
   Two or more benzo diazepines in urine sample2 (%) 9 (10) 10 (33) - 19 (8) <0.001
  1. Values higher or lower than expected are marked with bold or underlined italics, respectively.
  2. 1Urine samples analyzed with the LC-MS method.
  3. 2Chi-square test with 95% confidence interval computed for each square if Chi-square test is significant.
  4. 3Fisher's Exact test with 95% confidence interval computed for each square if Fisher's Exact test is significant.