Table 4.

Average annual medical expenditures in 2011–2015 for American adults of selected ages by smoking status, from a two-part model including personal characteristics and disease history at each decade of life ages 20–80, in 2015 US$.

Smoking status	Age
	20		30		40		50
	Estimate	95% CI	Estimate	95% CI	Estimate	95% CI	Estimate	95% CI
Never	US$2743	2366 to 3151	US$3214	2857 to 3571	US$3763	3472 to 4054	US$4401	4160 to 4642
Current	US$2909	2390 to 3428	US$3413	2928 to 3897	US$4000	3561 to 4438	US$4683	4284 to 5081
Former	US$3208	2704 to 3711	US$3754	3301 to 4208	US$4390	3947 to 4783	US$5130	4776 to 5483

Smoking status	Age
	60		70		80
	Estimate	95% CI	Estimate	95% CI	Estimate	95% CI
Never	US$5143	4846 to 5440	US$6007	5505 to 6508	US$7010	6184 to 7836
Current	US$5478	5059 to 5897	US$6403	5839 to 6968	US$7479	6627 to 8331
Former	US$5990	5574 to 6407	US$6990	6357 to 7623	US$8153	7160 to 9145