. Author manuscript; available in PMC: 2013 Aug 1.

Published in final edited form as: Dev Psychopathol. 2012 Aug;24(3):739–753. doi: 10.1017/S095457941200034X

Appendix Table 2.

Parameter estimates for paternal age categories from sensitivity analyses using different offset terms for truncated Poisson outcome.

Paternal age	<20	20–24	25–29	30–34	35–39	40–44	45–49	50–54	55–59	>59
Offset
1	0.10^*	0.03^*	−0.01	Ref.	0.05^*	0.11^*	0.06^*	−0.09^*	0.21^*	0.17^*
Time at risk	0.05^*	0.01	−0.00	Ref.	0.02^*	0.09^*	0.03	−0.11^*	0.21^*	0.17^*
Empirical/incidences	0.07^*	0.01	−0.01	Ref.	0.03^*	0.10^*	0.04	−0.11^*	0.20^*	0.17^*
Birth periods
1 + q₂^*(time at risk)	0.08^*	0.02^*	−0.01	Ref.	0.04^*	0.11^*	0.04^*	−0.10^*	0.21^*	0.18^*
1	0.09^*	0.03^*	−0.01	Ref.	0.04^*	0.11^*	0.05^*	−0.09^*	0.21^*	0.18^*
Time at risk	0.09^*	0.03^*	−0.01	Ref.	0.04^*	0.11^*	0.05^*	−0.10^*	0.21^*	0.18^*
Empirical/incidences	0.09^*	0.03^*	−0.01	Ref.	0.04^*	0.11^*	0.05^*	−0.10^*	0.21^*	0.17^*

Note: GLM analyses on truncated Poisson outcome, adjusted for covariates and using different offsets. The upper three rows were not adjusted for birth year whereas the lower four rows were adjusted for birth year.

p < 0.05. Ref. = reference category.