Factor Number
in group		 Mouthwash
user (%)a		 Х2 test
P-value
General health
Excellent 622 42.9 0.735
Good 1498 45.5
Fair 343 44.0
Poor 59 44.1
Dental health
Excellent 299 40.5 0.098
Good 1365 44.3
Fair 659 45.4
Poor 191 51.8
Current number of natural teeth
Fewer than 10 217 43.3 0.628
Between 10 and 19 512 46.3
20 or more 1825 44.1
Dental decay
No 2145 43.8 0.116
Yes 430 47.9
Gum disease
No 2365 43.5 0.001
Yes 210 55.7
Ulcers
No 2453 43.7 0.001
Yes 122 59.0
White or red patches
No 2505 44.2 0.094
Yes 70 54.3
Oral infection or swelling
No 2507 44.0 0.002
Yes 68 63.2
Other problems
No 2331 43.8 0.025
Yes 244 51.2
Possession of bridge
No 2390 44.2 0.378
Yes 185 47.6
Possession of dental implants
No 2438 44.6 0.489
Yes 137 41.6
Possession of dentures
No 1945 44.3 0.792
Yes 630 44.9

aUser: every day or once every few days; non-user: less than once a month or never.