Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Cognitive levels and smoking history.
| Dementia (n = 124) | MCI (n = 98) | C (n = 711) | Total (n = 933) | |
|---|---|---|---|---|
| Never smokers | 25 (20)∗† | 9 (9)‡ | 306 (43) | 340 (36.5) |
| Former-active smokers/no SHS | 79 (64)* | 49 (51) | 284 (40) | 412 (44.5) |
| Active smokers | 5 (4)† | 16 (16)§ | 64 (9) | 85 (9) |
| Secondhand smokers | 15 (12)† | 24 (24)‡ | 57 (8) | 96 (10) |
χ 2 test
Number of patients and frequency (%) are reported.
*Dementia versus C P < 0.001; †Dementia versus MCI P < 0.05; ‡MCI versus C P < 0.001; §MCI versus C P < 0.05.
