Table 4.

Sports Participation and Smoking in Relation to Herniated Lumbar Discs^ab

Parameter	Estimate	Standard Error	Wald-Type 95% Bounds	Likelihood-based 95% Bounds
Constant	−0.43	0.14	−0.71, −0.15	−0.71, −0.15
No sports	1.38	0.76	−0.12, 2.88	0.28, 3.52
Smoking	0.88	0.36	0.18, 1.58	0.29, 1.73
No sports × smoking	−1.28	0.94	−3.12, 0.56	−3.62, 0.43

^aData are from the study by Mundt et al. (19).

^bOutput was from fitting of a linear odds ratio model to the data in Table 3 of the present paper.