Multivariable Sensitivity Analysis Using Alternative Dichotomization Thresholds for Response Variable: Intention to Receive COVID-19 Within 1 Month (Rather Than 3 Months) of Regulatory Approval
| Alternative Dichotomization | Multivariable Odds Ratio (95% Cl, P Value)* | |||||
|---|---|---|---|---|---|---|
| Concern† | Edu‡ | Health§ | Age | Sex (Men) | Influenza | Direct Interaction |
| – | – | – | 1.00 (0.95-1.06, .918) | 2.25 (1.89-2.68, <.001) | 2.21 (1.57-3.18, <.001) | 1.16 (0.99-1.35, .064) |
| – | – | Alt | 1.00 (0.94-1.05, .938) | 2.25 (1.89-2.68, <.001) | 2.20 (1.57-3.16, <.001) | 1.17 (1.00–1.36, .047) |
| – | Alt | – | 1.02 (0.97-1.08, .427) | 2.28 (1.91–2.71, <.001) | 2.21 (1.57-3.17, <.001) | 1.14 (0.98-1.33, .090) |
| – | Alt | Alt | 1.02 (0.97-1.07, .508) | 2.28 (1.92–2.71, <.001) | 2.19 (1.56-3.15, <.001) | 1.15 (0.99-1.34, .070) |
| Alt | – | – | 1.01 (0.96-1.07, .706) | 2.28 (1.92–2.72, <.001) | 2.23 (1.58-3.21, <.001) | 1.12 (0.96-1.30, .160) |
| Alt | – | Alt | 1.01 (0.95-1.06, .830) | 2.29 (1.92–2.73, <.001) | 2.22 (1.57-3.19, <.001) | 1.13 (0.97-1.31, .128) |
| Alt | Alt | – | 1.03 (0.98-1.09, .269) | 2.31 (1.94-2.75, <.001) | 2.23 (1.58-3.21, <.001) | 1.10 (0.95-1.29, .209) |
| Alt | Alt | Alt | 1.03 (0.97-1.08, .324) | 2.32 (1.94-2.76, <.001) | 2.22 (1.57-3.19, <.001) | 1.11 (0.95-1.30, .174) |
| Alternative Dichotomization | Multivariable Odds Ratio (95% Cl, P Value)* | ||||
|---|---|---|---|---|---|
| Concern† | Edu‡ | Health§ | Concern | Education | Health |
| – | – | – | 2.02 (1.74-2.35, <.001) | 1.29 (1.11–1.51, .001) | 0.84 (0.70–1.01, .066) |
| – | – | Alt | 2.00 (1.72–2.32, <.001) | 1.31 (1.13-1.53, <.001) | 0.82 (0.52–1.27, .386) |
| – | Alt | – | 2.03 (1.74-2.36, <.001) | 1.49 (1.19-1.89, <.001) | 0.84 (0.70–1.01, .065) |
| – | Alt | Alt | 2.00 (1.73-2.33, <.001) | 1.53 (1.22–1.93, <.001) | 0.80 (0.51–1.24, .333) |
| Alt | – | – | 2.74 (2.26-3.34, <.001) | 1.30 (1.12–1.52, <.001) | 0.86 (0.72–1.03, .101) |
| Alt | – | Alt | 2.72 (2.24-3.31, <.001) | 1.32 (1.13-1.54, <.001) | 0.84 (0.53-1.29, .429) |
| Alt | Alt | – | 2.75 (2.27-3.35, <.001) | 1.51 (1.20–1.91, <.001) | 0.86 (0.72–1.03, .100) |
| Alt | Alt | Alt | 2.73 (2.25-3.32, <.001) | 1.54 (1.22–1.94, <.001) | 0.82 (0.52–1.26, .370) |
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.