Post-traumatic headache after mild traumatic brain injury in a one-year follow up study – risk factors and return to work

Table 4 Return to work at three months, comparison between pPTH and r-aPTH patients and between pPTH and non-PTH patients

Variable	pPTH n = 16 n (%)	r-aPTH n = 35 n (%)	p value (pPTH vs. aPTH)	Non-PTH n = 40 n (%)	p value (pPTH vs. non-PTH)
Full RTW	11 (68.8)	33 (94.3)	0.025	37 (92.5)	0.035
Partial RTW	3 (18.8)	0	0.027	3 (18.8)	0.338
Any RTW ^a	14 (87.5)	33 (94.3)	0.581	40 (100)	0.078

Dichotomous variables: Pearson Chi–square test
^a Including both full- and partial RTW
r-aPTH recovered acute post-traumatic headache; pPTH persistent post-traumatic headache; RTW return to work

ISSN: 1129-2377