Periodontal Status in Smokers and Nonsmokers: A Clinical, Microbiological, and Histopathological Study

Table 2

Distribution of pack years.

Pack years	Number (n = 100)	%
<1 year	12	12.0
1–5 years	50	50.0
5–15 years	24	24.0
>15 years	14	14.0