Table 4.

Neurodegenerative disease subtypes among former international rugby players compared with a matched population comparison group

Neurodegenerative disease	HR/OR (95% CI)	P value
Dementia (NOS)	2.17 (1.26 to 3.72)	0.005*
Parkinson’s disease	3.04 (1.51 to 6.10)	0.002*
MND/ALS‡	15.17 (2.10 to 178.96)	0.009†

*Cox proportional hazards regression.

†Baptista-Pike mid-p odds ratio.

‡MND/ALS adjusted to accommodate zero events by transferring one general population observation from no event to event.

ALS, amyotrophic lateral sclerosis; MND, motor neuron disease; NOS, not otherwise specified.