Table 4.

Contributing factor mentions/exposure conditions for all cases rated as at least potentially related to acetaminophen.

Root Causes	Non-Fatal (n=76)	Fatal (n=26)	Total (n=102)
Wrong Dose Administered	33 (25%)	15 (35%)	48 (27%)
Wrong Product	22 (17%)	5 (12%)	27 (15%)
Confused Drop for Suspension	18 (14%)	3 (7%)	21 (12%)
Unknown	12 (9%)	5 (12%)	17 (10%)
Adult Preparation	9 (7%)	5 (12%)	14 (8%)
Doses Administered Too Close Together	7 (5%)	1 (2%)	8 (5%)
Multiple Products	4 (3%)	3 (7%)	7 (4%)
Adverse Event at Correct Dose	6 (5%)	0 (0%)	6 (3%)
Suppository	5 (4%)	1 (2%)	6 (3%)
Underlying Illness or Condition	4 (3%)	0 (0%)	4 (2%)
Wrong Unit/Device	2 (2%)	1 (2%)	3 (2%)
Alternating Products	3 (2%)	0 (0%)	3 (2%)
More Than 1 Caregiver	2 (2%)	0 (0%)	2 (1%)
Non-Acetaminophen Ingredient	0 (0%)	2 (5%)	2 (1%)
Child Abuse	0 (0%)	1 (2%)	1 (< 1%)
Iatrogenic Error	1 (< 1%)	0 (0%)	1 (< 1%)
Combination Product	1 (< 1%)	0 (0%)	1 (< 1%)
Crushed Tablets	1 (< 1%)	0 (0%)	1 (< 1%)
Incorrect Dosage Form	1 (< 1%)	0 (0%)	1 (< 1%)
English as Second Language	1 (< 1%)	0 (0%)	1 (< 1%)
Wrong Concentration	0 (0%)	1 (2%)	1 (< 1%)
Wrong Dose Schedule	1 (< 1%)	0 (0%)	1 (< 1%)
TOTAL Number of Frequency Mentions**	133 (100%)	43 (100%)	176 (100%)

^*More than one contributing factor mention/exposure condition may have been identified for each case.

^**Percentages are calculated out of the total number of mentions for each column; non-fatal, fatal and total.