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Table 6 Mothers’ exposure to drugs by years

From: Substance use during pregnancy: impact on Colorado community hospital

Year 2013 2014 2015 2016 2017
Totala, including 78 91 114 130 194
 Opioids 26 34 39 45 57
 Cocaine 6 3 2 3 4
 Cannabis 38 53 74 80 119
 Barbiturates 0 1 0 2 1
 Benzodiazepines 10 5 2 1 5
 Amphetamines 14 17 12 22 30
 Methadone 1 12 4 9 27
  1. The trends in proportions were determined according to the Cochran-Armitage chi-square test
  2. The proportions of mothers using particular drugs decreased significantly for cocaine (χ2 = 4.24, df = 1, p = 0.04) and benzodiazepines (χ2 = 13.60, df = 1, p < 0.001), increased significantly for methadone (χ2 = 6.78, df = 1, p = 0.009), and the proportions of those testing positive for opioids (χ2 = 1.06, df = 1, p = 0.30), cannabis (χ2 = 2.46, df = 1, p = 0.12), or amphetamines (χ2 = 2.35, df = 1, p = 0.67) did not change significantly. The number of barbiturate-positive tests was too small to allow evaluation
  3. a The totals are not equal to the sums of separate drug categories, since more than one drug could be found at the same time