Table 3

Linear regression analyses showing associations between parent exercise motivation, intention for family activity and their own physical activity

	Unadjusted			Fully adjusted
Predictor variable	Coeff^*	95% CI	p	Coeff.	95% CI	p
Personal factors
Parent sex			0.05			0.15
Male		Reference†			Reference
Female	−3.46	−6.90 to −0.03		−2.60	−6.13 to 0.93
Number of children	−0.08	−1.68 to 1.52	0.92	−0.14	−1.78 to 1.50	0.87
IMD score	−0.001	−0.13 to 0.13	0.98	0.03	−0.11 to 0.16	0.72
Psychosocial factors
Motivation to exercise
Amotivation	−5.53	−8.30 to −2.75	<0.001	−0.53	−4.16 to 3.11	0.78
External regulation	−2.05	−5.08 to 0.99	0.19	−1.52	−5.07 to 2.04	0.40
Introjected regulation	2.53	1.06 to 3.99	0.001	0.73	−1.01 to 2.46	0.41
Identified regulation	5.76	4.28 to 7.25	<0.001	6.08	3.27 to 8.89	<0.001
Intrinsic motivation	4.44	3.10 to 5.78	<0.001	−0.35	−2.65 to 1.95	0.77
Intention to engage in family- based PA	0.91	0.16 to 1.67	0.02	0.67	−0.08 to 1.43	0.08

Sample sizes for the unadjusted analyses ranged from 968 to 1016, and for the adjusted analysis was 911. All analyses adjusted for clustering at the school level.
*Regression coefficients are unstandardised.
†Male sex was used as a reference category, and given a value of zero, against which the effects of the female sex category were assessed.
IMD, Indices of Multiple Deprivation; PA, physical activity.