Table 2.

Population characteristics and results in the full and pre-test groups: percentages (95% confidence interval) are reported. AIS: adolescent idiopathic scoliosis.

		Study Sroup (SG)	Pre-test Group (PG)
Sample		3162	100
Gender	Females	76.15%	83%
	Males	13.85%	17%
Age	Average	41.2	37.7
	Range	28–62	29–49
Education	primary	4.37%	5%
	secondary	32.71%	28%
	high-school	51.28%	58%
	university	11.64%	9%