Table 3.

Tests of Difference in Cost by Smoking Status and Postindex Date Period

	P-Values for Tests of Difference Based on Generalized Linear Model
	Cost Difference*/P-Value
	Former—Continuing Smokers		Former—Never Smokers		Continuing—Never Smokers
Period	Cost Difference	P-Value	Cost Difference	P-Value	Cost Difference	P-Value
1st year postindex	1001	0.07	1621	0.06	620	0.40
2nd year postindex	−219	0.47	612	0.25	831	0.18
3rd year postindex	607	0.22	1085	0.14	479	0.55
4th year postindex	−328	0.61	833	0.23	1161	0.27
5th year postindex	−673	0.22	646	0.29	1318	0.18
6th year postindex	596	0.21	1411	0.07	815	0.37
7th year postindex	−1125	0.07	1077	0.09	2202	0.06

^*Cost values reported in 2000 U.S. dollars.