Skip to main content

Table 3 Effect measures of maternal cannabis use on selected birth outcomes

From: Association between maternal cannabis use and birth outcomes: an observational study

Outcome Coefficient 95% CI
Birth weight a (grams)
 Non-Users (ref)  
 Users −85.8 154.6, −17.2
  Odds Ratio 95% CI
Low birth weight a
 Non-Users (ref)  
 Users 0.93 0.29, 2.93
Preterm birth b
 Non-Users (ref)  
 Users 1.26 0.62, 2.57
Small size for GA b
 Non-Users (ref)  
 Users 2.03 1.25, 3.31
  1. N = 1773 for preterm birth model, N = 1770 for birth weight and small size for GA models
  2. Abbreviations: CI confidence interval, GA gestational age
  3. aContinuous (linear) and binary (logistic) birth weight regression models with robust cluster analysis adjusted for infant sex, GA (continuous), pre/early-pregnancy cannabis use, year of LSQ1 completion, maternal age, ethnicity, education, income, pre-pregnancy BMI, alcohol use, tobacco use, anxiety/depression symptoms, antidepressant use, and pain medication use.
  4. bPreterm birth and small for GA logistic regression models adjusted for infant sex, pre/early -pregnancy cannabis use, year of LSQ1 completion, maternal age, ethnicity, education, income, pre-pregnancy BMI, alcohol use, tobacco use, anxiety/depression symptoms, antidepressant use, and pain medication use