Table 3.

Generalized linear models.

	Single predictor model (exposure status only)			Two-predictor model (exposure status and propensity score)
	B	Wald chi-square	Sig.	B	Wald chi-square	Sig.
Productivity status	−1.055	4.875	0.027	−1.02	4.363	0.037
RPQ	−4.224	1.798	0.180	−5.091	2.111	0.146
PHQ-9	−1.102	0.746	0.388	−1.227	0.879	0.348
GAD-7	−0.647	0.248	0.619	−0.402	0.091	0.763

PHQ-9, personal health questionnaire-9; GAD-7, generalized anxiety disorder-7; RPQ, rivermead post-concussion symptom questionnaire.