Table 2.

Coefficients (C) and standard errors (SE) from multivariate regression models for age by sex and nationality.

Parameter	C	SE	p
Intercept	43.54	0.04	<0.001
Nation	0.36	0.01	<0.001
[Sex = women]	−6.44	0.10	<0.001
[Sex = men]	0∗	0∗
[Sex = Women] × nationality	0.23	0.03	<0.001
[Sex = men] × nationality	0∗	0∗

^∗This parameter was set to zero because it was redundant.