According to information from local studies, it is actually very common for patients with cognitive impairment to become lost. Nearly 30% of the patients had been lost in the community, and more than 20% of them had been lost more than once. In addition, more than half of the patients who participated in the study were found after more than one hour.
Reference:Kwok, T. C., Yuen, K. S., Ho, F. K., & Chan, W. M. (2010). Getting lost in the community: a phone survey on the community‐dwelling demented people in Hong Kong. International journal of geriatric psychiatry, 25(4), 427-432.
