Table 4 Associations between periconceptional exposures to caffeine intake
From: Parental risk factors and anorectal malformations: systematic review and meta-analysis
| Â | Â | Maternal caffeine exposure* | Â | |
|---|---|---|---|---|
Ref. |    First author, year | Exposure | OR [95% CI] | Adjustment/matching factors |
[37] |    Miller, 2009 | < 10 mg 10-99 mg 100-299 mg ≥300 mg | 1.0 Reference 1.4 [0.9, 2.3] 1.9 [1.2, 3.0] 1.5 [0.9, 2.7] | None of the variables met the criteria for confounding by the author; therefore, only the unadjusted odds ratios were presented |