Table 6.

Scores for psychosocial measures at follow-up for participants randomised to usual practice (control) or to the Girls Active programme (intervention)

	Number of schools | pupils		Adjusted difference at follow-upa
	Control	Intervention	Coefficient (95% C.I.)	P value	ICC
Intentions to be physically activeb
Baseline	10 | 871	10 | 842
7 months	8 | 623	10 | 776	-0.15 (-0.33 to 0.03)	0.094	< 0.001
14 months	9 | 569	10 | 734	-0.21 (-0.37 to -0.05)	0.012	< 0.001
Perceived importance of PAc
Baseline	10 | 849	10 | 828
7 months	8 | 621	10 | 768	-0.42 (-0.66 to -0.18)	< 0.001	< 0.001
14 months	9 | 557	10 | 729	-0.13 (-0.41 to 0.15)	0.350	< 0.001
Attitudes towards being physically actived
Positive
Baseline	10 | 877	10 | 863
7 months	8 | 626	10 | 775	-0.02 (-0.13 to 0.09)	0.775	0.01
14 months	9 | 573	10 | 737	-0.03 (-0.07 to 0.02)	0.250	< 0.001
Negative
Baseline	10 | 877	10 | 863
7 months	8 | 627	10 | 775	0.01 (-0.05 to 0.08)	0.661	0.003
14 months	9 | 573	10 | 737	0.04 (-0.04 to 0.11)	0.359	0.001
Whole
Baseline	10 | 877	10 | 863
7 months	8 | 627	10 | 775	-0.02 (-0.10 to 0.06)	0.667	0.01
14 months	9 | 573	10 | 737	-0.03 (-0.08 to 0.02)	0.267	< 0.001
Social support for PA from familye
Baseline	10 | 876	10 | 863
7 months	8 | 626	10 | 774	0.03 (-0.05 to 0.12)	0.445	< 0.001
14 months	9 | 571	10 | 735	-0.05 (-0.11 to 0.01)	0.105	< 0.001
Social support for PA received from peerse
Baseline	10 | 874	10 | 863
7 months	8 | 626	10 | 773	-0.01 (-0.12 to 0.10)	0.880	0.01
14 months	9 | 567	10 | 734	0.01 (-0.07 to 0.09)	0.762	0.01
School-based social support for PA
Physical environmente
Baseline	10 | 878	10 | 862
7 months	8 | 627	10 | 773	0.03 (-0.10 to 0.15)	0.684	0.03
14 months	9 | 571	10 | 734	-0.13 (-0.24 to -0.01)	0.032	0.04
Social environmente
Baseline	10 | 878	10 | 861
7 months	8 | 626	10 | 773	-0.01 (-0.10 to 0.07)	0.758	0.026
14 months	9 | 570	10 | 734	-0.07 (-0.15 to 0.01)	0.080	0.009
PE teachersf
Baseline	10 | 874	10 | 859
7 months	8 | 624	10 | 774	-0.03 (-0.23 to 0.16)	0.733	0.026
14 months	9 | 567	10 | 731	-0.21 (-0.45 to 0.02)	0.074	0.018
Confidence to take part in PA (self-efficacy)d
Baseline	10 | 879	10 | 853
7 months	8 | 625	10 | 774	-0.02 (-0.09 to 0.04)	0.472	< 0.001
14 months	9 | 568	10 | 733	-0.08 (-0.14 to -0.02)	0.013	< 0.001
Enjoyment of PAg
Baseline	10 | 876	10 | 851
7 months	8 | 625	10 | 772	-0.03 (-0.14 to 0.08)	0.592	0.140
14 months	9 | 566	10 | 731	-0.04 (-0.12 to 0.04)	0.361	< 0.001
Motivation to take part in PAg
Extrinsic
Baseline	10 | 877	10 | 842
7 months	8 | 626	10 | 771	-0.02 (-0.11 to 0.07)	0.680	< 0.001
14 months	9 | 568	10 | 735	-0.01 (-0.15 to 0.13)	0.919	0.009
Introjected
Baseline	10 | 878	10 | 842
7 months	8 | 626	10 | 771	-0.05 (-0.11 to 0.02)	0.143	< 0.001
14 months	9 | 568	10 | 735	-0.05 (-0.14 to 0.04)	0.260	< 0.001
Identified
Baseline	10 | 878	10 | 842
7 months	8 | 626	10 | 771	-0.02 (-0.15 to 0.10)	0.700	0.020
14 months	9 | 568	10 | 735	-0.09 (-0.18 to -0.01)	0.032	< 0.001
Intrinsic
Baseline	10 | 878	10 | 842
7 months	8 | 626	10 | 771	-0.01 (-0.18 to 0.18)	0.990	0.028
14 months	9 | 568	10 | 735	-0.06 (-0.16 to -0.04)	0.243	0.002
Amotivation
Baseline	10 | 877	10 | 841
7 months	8 | 626	10 | 771	-0.03 (-0.15 to 0.09)	0.578	0.007
14 months	9 | 568	10 | 735	-0.02 (-0.14 to 0.09)	0.684	0.002
Physical self-perceptione
Self-esteem
Baseline	10 | 760	10 | 700
7 months	8 | 622	10 | 769	0.06 (0.01 to 0.11)	0.025	< 0.001
14 months	9 | 535	10 | 730	-0.06 (-0.13 to 0.01)	0.086	< 0.001
Physical self-worth
Baseline	10 | 760	10 | 699
7 months	8 | 622	10 | 769	-0.01 (-0.07 to 0.05)	0.742	0.007
14 months	9 | 535	10 | 730	-0.03 (-0.09 to 0.03)	0.322	0.006
Body attractiveness
Baseline	10 | 760	10 | 699
7 months	8 | 622	10 | 769	-0.05 (-0.12 to 0.03)	0.195	< 0.001
14 months	9 | 535	10 | 730	0.02 (-0.05 to 0.08)	0.630	< 0.001

IQR interquartile range; CI confidence interval; ICC intra-class correlation; PA physical activity

^aBased on a complete case analysis, adjusted difference at follow-up between randomised groups with 95% confidence interval, p value and ICC for schools; adjusted for cluster effect, baseline value, participant year group, school %free school meal eligibility and stratification categories (school size and percentage of non-White pupils)

^bScore ranges from 1 = ‘very unlikely’ to 7 = ‘very likely’

^cScale ranges from 1 = ‘very unimportant’ to 10 = ‘very important’

^dScore ranges from 1 = ‘disagree a lot’ to 5 = ‘agree a lot’

^eScore ranges from 1 = ‘strongly disagree’ to 5 = ‘strongly agree’

^fScore ranges from 1 = ‘strongly disagree’ to’ 7 = ‘strongly agree’

^gScore ranges from 1 = ‘no not at all’ to 5 = ‘yes a lot’