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. 2022 Mar 9;10(3):412. doi: 10.3390/vaccines10030412

Table 2.

Hazard ratios (HRs) for vaccine receipt by cox proportional hazards model.

Variable Model 1 *
HR (95% CI)
Model 2 †
HR (95%) CI
Model 3 ‡
HR (95% CI)
Age
<18–29
30–59
** ** **
1.40 (1.24, 1.59) 1.54 (1.31, 1.81) 1.80 (1.39, 2.32)
60–70+
Gender
3.28 (2.90, 3.72) 3.26 (2.78, 3.83) 3.65 (2.83, 4.72)
Male
Female
Annual income
<$34,999
** ** **
1.01 (0.97, 1.05) 1.01 (0.95, 1.06) 1.00 (0.93, 1.08)
** ** **
$35 K–$74,999
$75 K–$100 K+
1.10 (1.02, 1.19) 1.17 (1.05, 1.30) 0.97 (0.84, 1.13)
1.30 (1.21, 1.40) 1.37 (1.25, 1.52) 1.10 (0.95, 1.26)
Prefer not to answer 1.120 (1.035, 1.211) 1.140 (1.027, 1.267) 1.064 (0.919, 1.233)
Race
White ** ** **
Black 1.02 (0.94, 1.11) 1.03 (0.93, 1.14) 0.85 (0.73, 0.98)
Asian 1.20 (1.03, 1.40) 1.29 (1.01, 1.63) 0.92 (0.65, 1.30)
Hispanic 0.94 (0.81, 1.08) 0.96 (0.80, 1.15) 0.81 (0.62, 1.05)
Other 0.66 (0.57, 0.75) 0.60 (0.50, 0.72) 0.75 (0.58, 0.98)
Comorbidities
No ** **
Yes 1.20 (1.13, 1.27) 1.26 (1.17, 1.37)
Ever tested positive for COVID-19
No ** **
Yes 0.49 (0.46, 0.53) 0.68 (0.62, 0.74)
BMI 0.99 (0.98, 1.00) 0.98 (0.97, 0.99)
Think vaccines are safe
No **
Yes 4.61 (2.52, 8.40)
Not Sure 2.49 (1.39, 4.44)
Thinks vaccines are effective
No **
Yes 1.85 (1.12, 3.06)
Not Sure 1.47 (0.90, 2.41)
Trusts the pharmaceutical research behind vaccines
No **
Yes 1.80 (1.27, 2.55)
Not Sure 1.69 (1.22, 2.35)
Got the vaccine to protect family or friend at high risk for severe disease
No **
Yes 1.09 (1.00, 1.19)
Got the vaccine to protect self
No **
Yes 2.43 (2.10, 2.82)
Got the vaccine to help control the pandemic
No **
Yes 1.30 (1.17, 1.46)
Frontline medical worker
No **
Yes 3.23 (2.79, 3.73)
Think doctors have the best interest in patients when it comes to COVID-19.
No **
Yes 0.97 (0.86, 1.09)
Not Sure 0.81 (0.70, 0.95)

* Unadjusted model. † Adjusted for comorbid, BMI, ever tested positive for COVID-19. ‡ Adjusted for Model 2 covariates and think vaccines are safe, think vaccines are effective, trusts pharmaceutical research behind vaccines, got the vaccine to protect family or friend at high risk of disease, got the vaccine to protect self, got the vaccine to help control the pandemic, is a frontliner medical worker, think doctors have the best interest in patients when it comes to COVID-19. ** Reference level.