From: Investigating the correlation between smoking and blood pressure via photoplethysmography
Age
Male (%)
Female (%)
17–26
48 (57.2%)
2 (2.4%)
27–36
17 (20%)
–
37–46
10 (12%)
47–56
4 (4.8%)
57–66
1 (1.2%)
Total
80
4