Table 3.
Demographic characteristic | Unadjusted | Adjusted | |||
|
IRR (95% CI) | Countsa (95% CI) | IRR (95% CI) | Countsa (95% CI) | |
Patient origin |
|
|
|
|
|
|
From Google advertisement | Reference | 17.4 (15.3-19.6) | Reference | 17.0 (15.0-19.1) |
|
From medical provider | 0.7 (0.6-0.9) | 12.9 (11.5-14.2) | 0.8 (0.7-0.9) | 12.7 (11.4-14.0) |
|
From dental provider | 0.7 (0.6-0.9) | 12.3 (10.4-14.2) | 0.7 (0.6-0.9) | 12.0 (10.1-13.8) |
Sex |
|
|
|
|
|
|
Female | Reference | 15.3 (13.9-16.6) | Reference | 14.8 (13.6-16.1) |
|
Male | 0.8 (0.7-0.9) | 12.3 (10.8-13.8) | 0.8 (0.7-1.0) | 12.1 (10.7-13.5) |
Age |
|
|
|
|
|
|
19-34 | Reference | 14.5 (12.7-16.9) | Reference | 14.3 (12.0-16.6) |
|
35-54 | 1.0 (0.8-1.2) | 13.8 (12.4-15.2) | 0.9 (0.8-1.1) | 13.4 (12.1-14.7) |
|
> 55 | 1.0 (0.82-1.25) | 14.7 (12.8-16.7) | 1.0 (0.8-1.2) | 14.3 (12.5-16.1) |
Race |
|
|
|
|
|
|
White | Reference | 11.7 (9.3-14.1) | Reference | 11.5 (9.2-13.9) |
|
Nonwhite | 1.3 (1.0-1.6) | 14.6(13.5-15.7) | 1.2 (1.0-0.5) | 14.2 (13.1-15.2) |
School |
|
|
|
|
|
|
College graduate | Reference | 18.4 (15.8-21.1) | Reference | 17.8 (15.3-20.4) |
|
< College graduate | 0.7 (0.6-0.8) | 13.0 (11.9-14.0) | 0.7 (0.6-0.9) | 12.8 (11.8-13.8) |
Smoking status |
|
|
|
|
|
|
Already quit | Reference | 16.2(13.3-19.1) | Reference | 15.9 (13.1-18.7) |
|
Set a quit date | 0.9 (0.7-1.2) | 15.1 (12.0-18.3) | 1.0 (0.8-1.3) | 14.9 (11.9-17.9) |
|
Thinking of quitting | 0.9 (0.7-1.1) | 13.9 (12.7-15.1) | 0.9 (0.8-1.1) | 13.5 (12.4-14.6) |
|
Not thinking about quitting | 0.6 (0.4-0.9) | 9.9 (6.4-13.4) | 0.7 (0.5-1.0) | 10.1 (6.6-13.5) |
aCounts are marginal predicted counts products postregression using the X command in STATA.