Table 2.

Item non-response by questionnaire length

Section	Item non-response (%)		p
	Long	Short
Overall	9.8	5.8	.04
A. Your neighbourhood and local area	2.8	2.5	.73
B. Walking and cycling	12.9	4.9	.01
C. Your travel	12.5	9.5	.27
D. Activities at home	6.5	n/a	-
E. Activities at work or place of study	12.4	8.6	.35
F. Recreational activities	15.1	8.3	.11
G. You and your household	6.0	9.6	.05