Multivariable Sensitivity Analysis for Inclusion of Survey Completion Timestamp on 3-Month Vaccination Intention
| Alternative Dichotomization | Multivariable Odds Ratio (95% Cl, P Value)* | ||||||
|---|---|---|---|---|---|---|---|
| Concern† | Edu‡ | Health§ | Age | Sex (Men) | Influenza | Direct Interaction | Concern |
| – | – | – | 0.95 (0.90–1.00, .049) | 2.43 (2.01– 2.95, <.001) | 2.34 (1.74-3.17, <.001) | 0.92 (0.79-1.07, .298) | 2.40 (2.07-2.79, <.001) |
| – | – | Alt | 0.94 (0.89-1.00, .033) | 2.43 (2.01– 2.96, <.001) | 2.33 (1.73-3.15, <.001) | 0.93 (0.80–1.08, .359) | 2.37 (2.05-2.75, <.001) |
| – | Alt | – | 0.97 (0.92-1.02, .261) | 2.47 (2.04-3.00, <.001) | 2.32 (1.73-3.14, <.001) | 0.91 (0.78-1.06, .224) | 2.41 (2.07-2.79, <.001) |
| – | Alt | Alt | 0.97 (0.92-1.02, .210) | 2.47 (2.05-3.00, <.001) | 2.31 (1.71–3.12, <.001) | 0.92 (0.79-1.07, .270) | 2.38 (2.05-2.76, <.001) |
| Alt | – | – | 0.95 (0.90–1.00, .073) | 2.60 (2.14-3.19, <.001) | 2.38 (1.76-3.24, <.001) | 0.88 (0.76-1.03, .117) | 4.01 (3.36-4.80, <.001) |
| Alt | – | Alt | 0.95 (0.90–1.00, .050) | 2.61 (2.14-3.19, <.001) | 2.36 (1.75-3.21, <.001) | 0.89 (0.76-1.04, .147) | 3.97 (3.33-4.75, <.001) |
| Alt | Alt | – | 0.97 (0.92-1.03, .336) | 2.65 (2.18-3.24, <.001) | 2.38 (1.76-3.24, <.001) | 0.87 (0.74-1.02, .081) | 4.02 (3.36-4.81, <.001) |
| Alt | Alt | Alt | 0.97 (0.92-1.02, .273) | 2.65 (2.18-3.24, <.001) | 2.36 (1.74-3.21, <.001) | 0.88 (0.75-1.03, .103) | 3.98 (3.34-4.76, <.001) |
| Alternative Dichotomization | Multivariable Odds Ratio (95% Cl, P Value)* | ||||
|---|---|---|---|---|---|
| Concern† | Edu‡ | Health§ | Education | Health | Timestamp‖ |
| – | – | – | 1.41 (1.20–1.64, <.001) | 0.85 (0.71–1.01, .066) | 0.99 (0.96-1.01, .241) |
| – | – | Alt | 1.43 (1.22-1.66, <.001) | 0.80 (0.53-1.23, .306) | 0.99 (0.96-1.01, .240) |
| – | Alt | – | 1.55 (1.25-1.91, <.001) | 0.84 (0.70–1.01, .059) | 0.98 (0.96-1.01, .167) |
| – | Alt | Alt | 1.58 (1.28-1.96, <.001) | 0.78 (0.51–1.19, .239) | 0.98 (0.96-1.01, .162) |
| Alt | – | – | 1.41 (1.21–1.65, <.001) | 0.85 (0.71–1.02, .073) | 0.98 (0.96-1.01, .164) |
| Alt | – | Alt | 1.43 (1.22-1.67, <.001) | 0.80 (0.52-1.22, .288) | 0.98 (0.96-1.01, .163) |
| Alt | Alt | – | 1.55 (1.25-1.92, <.001) | 0.84 (0.70–1.01, .063) | 0.98 (0.96-1.01, .115) |
| Alt | Alt | Alt | 1.58 (1.28-1.96, <.001) | 0.77 (0.51–1.18, .224) | 0.98 (0.96-1.00, .112) |
CI, confidence interval; Edu, educational attainment; Alt, alternative.
↵* Boldface text indicates P < .05.
↵† Concern about becoming infected with COVID-19. Concern was reported on a 5-point Likert scale (extremely, moderately, somewhat, slightly, not at all). The original (–) threshold divides between moderately/somewhat. The alternative threshold divides between somewhat/slightly.
↵‡ Educational attainment was reported on a 6-point Likert scale (some high school, high school graduate, some college, college graduate, Master's degree and Doctoral/Professional degree). The original (–) threshold divides between College graduate/Master's degree. The alternative threshold divides between some college/college graduate.
↵§ Self-reported health status was reported on a 5-point Likert scale (excellent, very good, good, fair, poor). The original threshold (–) divides between very good/good. The alternative threshold divides between good/fair.
↵‖ Measured in days.