Table A1.

Demographics of the participants.

Variables	Description	Number of Participants	Percentage (%)
Gender	Male	233	63.50
	Female	134	36.50
Age group	18–30	121	33.00
	31–40	78	21.30
	41–50	74	20.20
	51–60	23	6.30
	≥61	71	19.30
Miles driven per year (km)	<10,000	37	10.10
	10,000–20,000	58	15.80
	20,000–40,000	115	31.30
	40,000–60,000	73	19.90
	≥60,000	84	22.90
Education level	Lower secondary or below	38	10.40
	Secondary education	145	39.50
	Tertiary education	184	50.10
Any insurance other than the mandatory car insurance	Yes	229	62.40
	No	138	37.60
Accident experience	Yes	148	40.30
	No	219	59.70
Frequency of risk underestimation	Never	94	25.60
	Rarely underestimate the risk	133	36.20
	Sometimes/occasionally underestimate the risk	59	16.10
	Often underestimate the risk	62	16.90
	Always underestimate the risk	19	5.20