Table 2

Associations between change in mode of travel to work and change in body mass index

Analysis 1: Impact of switching from private motor transport to active travel or public transport
Model characteristics^a	Minimally adjusted models		Maximally adjusted models
	All participants				As models C and D, except restricting the exposed group to participants who switched between t0 and t1		As model D, except restricting analysis to participants with longer commuting times at t0
							>10 min	>20 min	>30 min
	Model A	Model B	Model C	Model D	Model E	Model F	Model G	Model H	Model I
Switch from private motor to public transport or active travel	−0.18	−0.21	−0.32*	N/a	−0.33	N/a	N/a	N/a	N/a
	(−0.45 to 0.0)	(−0.47 to 0.06)	(−0.60 to −0.05)		(−0.76 to 0.09)
Switch from private motor to public transport				−0.12		0.12	−0.20	−0.23	−0.42
Switch from private motor to public transport				(−0.55 to 0.30)		(−0.57 to 0.80)	(−0.67 to 0.27)	(−0.75 to 0.29)	(−1.05 to 0.22)
Switch from private motor to active travel				−0.45**		−0.59*	−0.75**	−1.64***	−2.25***
Switch from private motor to active travel				(−0.78 to −0.11)		(−1.11 to −0.06)	(−1.23 to −0.28)	(−2.35 to −0.94)	(−3.33 to −1.18)
Observations	3269		3253		3144		2244	1289	752

Analysis 2: Impact of switching to private motor transport from active travel or public transport
Model characteristics†	Minimally adjusted models		Maximally adjusted models
Model characteristics†	All participants				As models L and M, except restricting the exposed group to participants who switched between t0 and t1		As model M, except restricting analysis to participants with longer commuting times at t0
							>10 min	>20 min	>30 min
	Model J	Model K	Model L	Model M	Model N	Model O	Model P	Model Q	Model R
Switch to private motor from public transport or active travel	0.34** (0.06 to 0.62)	0.33* (0.04 to 0.62)	0.34* (0.05 to 0.64)	N/a	0.37 (0.00 to 0.75)	N/a	N/a	N/a	N/a
Switch to private motor from public transport				0.46* (0.06 to 0.86)		0.44 (−0.10 to 0.98)	0.51* (0.06 to 0.96)	0.61* (0.13 to 1.1)	0.35 (−2.22 to 0.93)
Switch to private motor from active travel				0.26 (−0.09 to 0.62)		0.33 (−0.13 to 0.79)	0.39 (−0.14 to −0.93)	0.52 (−0.19 to 1.22)	0.52 (−0.53 to 1.58)
Observations	787		785		658		500	342	239

Values tabulated are β-coefficients and 95% CIs.
*p<0.05, **p<0.01 and ***p<0.001.
†See figure 2 for details of the variables and samples used in each statistical model. n/a, Not applicable.