Table 1.

Demographic characteristics of patients (N=18,473) and the average number of visits (N=39,239; overall mean: 2.12 visits per person).

Characteristic		Visits, n (%)	Patients, n (%)a	Visits per person, mean
Age (years)
	≤20	1078 (2.75)	702 (3.8)	1.54
	21-40	20,566 (52.41)	10,036 (54.33)	2.05
	41-60	14,168 (36.11)	6093 (32.98)	2.33
	61-80	3315 (8.45)	1578 (8.54)	2.10
	≥80	112 (0.29)	64 (0.35)	1.75
Gender
	Female	15,298 (38.99)	7935 (42.95)	1.93
	Male	23,941 (61.01)	10,538 (57.05)	2.27

^aIf 2 patients had the same district and ID information, they were considered the same person.