Relationship between the incidence of non-hepatic hyperammonemia and the prognosis of patients in the intensive care unit

Table 4 Comparison between drug poisoning and non-drug poisoning

Variables, mean ± SD	Drug poisoning n (20)	Non-drug poisoning n (184)	P value
H-Ammonia, μmol/L	86.70 ± 46.54	69.61 ± 52.47	0.032
M-Ammonia, μmol/L	68.11 ± 36.88	50.66 ± 31.85	0.016
I-Ammonia, μmol/L	73.10 ± 46.37	51.12 ± 35.01	0.024

P < 0.05 was considered statistically significant. H-Ammonia: High-level of ammonia; M-Ammonia: Mean-level of ammonia; I-Ammonia: Initial-level of ammonia.