Table 4.

Comparing Barriers: Former versus Current Participants

Barrier Category	Item	Proportion of current participants endorsing the item	Proportion of former participant endorsing the item	p-value for differencea
Program barriers	Time of class inconvenient	.17	.25	0.21
	The class occurred too frequently	.05	.11	0.08
	Class was too hard	.03	.19	0.00
	Class was too long	.03	.07	0.11
	Class was too easy	.07	.23	0.00
	Instructor was not any good	.05	.17	0.08
Cognitive/Psychological barriers	I don’t have time to exercise	.11	.14	0.45
	I don’t like to exercise	.07	.24	0.00
	I don’t like to wear exercise clothes	.08	.06	0.67
Social barriers	I had a conflict with another classmate	.00	.02	----
	Family member illness	.10	.06	0.42
	Loss of a loved one	.01	.06	0.06
Environmental barriers	I had problems with transportation	.04	.02	0.47
	Weather (hot, cold, rainy)	.08	.06	0.68
	I moved away from the area	.01	.02	0.46
	The class is in a part of town that is not safe	.03	.02	0.62
Health barriers	Personal illness/ poor health	.14	.25	0.05
	My doctor told me to stop exercising	.02	.04	0.13
	I became too tired	.05	.15	0.07
	Exercises caused pain	.06	.22	0.00
Program barriers	Time of class inconvenient	.17	.25	0.21
	The class occurred too frequently	.05	.11	0.08
	Class was too hard	.03	.19	0.00
	Class was too long	.03	.07	0.11
	Class was too easy	.07	.23	0.00
	Instructor was not any good	.05	.17	0.08
Total barrier score (Mean, SD)b		4.10 (4.40)	7.67 (5.83)	0.00

^abased on robust standard errors;

^btotal possible points for Barriers = 78