Table 1.

Participant characteristics

	Participants (n = 3,165)
Age (years)
Median	73
Range	41–95
Marital status, no. (%)
Married/have relation	2,525 (80)
Unmarried/ no relation/widow	501 (16)
Missing	139 (4)
Education (%)
Elementary school	1,213 (38)
High school	886 (28)
Higher education	937 (30)
Missing	129 (4)
Years since diagnose (years)
Median	6.0
Range	0–50
Disease statusa (%)
Local disease	2,563 (81)
Locally advanced	392 (12)
Spread disease	95 (3)
Missing/not known	51 (4)

^aData not verified from medical records