Table 1.

Example Tobacco Use Entries.

Field	Example 1	Example 2	Example 3
Smoking status	Current Everyday Smoker	Former Smoker	Passive Smoker
Start date	–	–	–
Quit date	–	2/12/02 0:00	–
Types (Cigarettes, Pipe, or Cigars)	Cigarettes	Cigarettes	–
Packs/day	0.5	1	–
Years	15	11	–
Pack years*	7.5	11	–
Smokeless tobacco	Never Used	Current User	Unknown
Quit date	–	–	–
Types (Snuff or Chew)	–	Chew	–
Comment	Started smoking again in 2010 after quitting a few years	2 cans weekly	Parents smoke outside

^*Calculated based on Packs/day and Years