For MBP, the hypertension episode (MBP > 105 mmHg) detected by CNAP was significant more than that detected by IAP in all the patients (9.2% vs 5.2%), the relatively old group (9.7% vs 5.9%) and the relatively young group (8.7% vs 4.4%); but the hypotension episodes (MBP < 70 mmHg) detected by CNAP was significant less than that detected by IAP in all the patients (8.4% vs 15.6%), the relatively old group (7.2% vs 13.5%) and the relatively young group (9.8% vs 17.9%), which indicated that CNAP tended to misinform high MBP and miss reporting low MBP. The gene discussed is MBP; the disease is hypotensive disorder.