Characteristic Acetaminophen (n=99) Non-Acetaminophen (n=691) Unadjusted Odds Ratio (95% CI)b Adjusted Odds Ratio (95% CI)b,c
Unsafe storaged        
  No 66 (67) 530 (77) reference reference
  Yes 30 (30) 143 (21) 1.68 (1.09, 2.60)* 1.65 (1.07, 2.55)*
Missing 3 (3) 18 (2)    
Type of medication        
  Over-the-counter 82 (83) 416 (60) reference reference
  Prescription 16 (16) 271 (39) 0.30 (0.14, 0.63)* 0.26 (0.12, 0.59)*
Missing 1 (1) 4 (1)    
Storage location of medication        
  Bathroom 45 (46) 220 (32) 1.96 (1.24, 3.10)* 1.58 (1.02, 2.44)*
  Bedroom 3 (3) 21 (3) 1.37 (0.39, 4.82) 0.98 (0.29, 3.31)
  Kitchen 41 (41) 393 (57) reference reference
  Other location 10 (10) 57 (8) 1.68 (0.82, 3.45) 1.67 (0.82, 3.39)

aData on acetaminophen content was missing for 99 medications. bLogistic regression analyses compare acetaminophen to non-acetaminophen medications and account for clustering within individual households. cAdjusted odds ratios include all listed variables as independent variables. dUnsafe storage defined as medications stored below 5 feet that are not locked. *Significant result (α=0.05)

Table 1: Acetaminophen storage in 24 homesa.