Prognosis

Note:

• Early neurological impairment occurs in a third of patients with suspected CO poisoning (31%: 95% CI: 21% to 40%). ^c
• Patients with HbCO > 10% are more likely to have neurological impairment at 10 days. ^c

Elevated HbCO levels increase the risk of neurological disability

Patient	Prognostic Factor	Outcome	CER	OR (95% CI)	NNF+ (95% CI)
carbon monoxide poisoning c	HbCO > 10%  not independent	neurological impairment at 10 days	28%	2.70 (1.41 to 5.19)	3 (1 to 13)