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. 2021 Jan 11;39(6):943–951. doi: 10.1016/j.vaccine.2020.12.069

Table 3.

Logistic Regression Models Predicting 2009 H1N1 Influenza Vaccination in the National 2009 H1N1 Flu Survey.

Characteristics Model 1

Model 2

Model 3

Model 4

Model 5
AOR 95% CI −/+ AOR 95% CI −/+ AOR 95% CI −/+ AOR 95% CI −/+ AOR 95% CI −/+
Race/Sex
 White, Female 1.00 1.00 1.00 1.00 1.00
 White, Male 0.91* 0.83 0.99 1.15** 1.04 1.27 1.11* 1.01 1.24 1.20** 1.08 1.34 1.28*** 1.15 1.43
 Black, Male 0.71** 0.55 0.92 0.71* 0.54 0.95 0.84 0.63 1.12 0.91 0.68 1.22 0.98 0.72 1.32
 Black, Female 0.55*** 0.44 0.67 0.55*** 0.44 0.69 0.65*** 0.52 0.82 0.60*** 0.47 0.75 0.57*** 0.45 0.73



Age
 65+ 1.00 1.00 1.00 1.00 1.00
 35–64 0.85** 0.77 0.93 0.75*** 0.67 0.83 0.64*** 0.57 0.72 0.61*** 0.55 0.69 0.67*** 0.59 0.75
 18–34 0.76*** 0.67 0.87 0.67*** 0.57 0.77 0.67*** 0.57 0.78 0.63*** 0.54 0.74 0.67*** 0.57 0.79



Concern about H1N1
 Low Concern 1.00 1.00 1.00 1.00
 High Concern 1.16** 1.04 1.29 1.17** 1.05 1.30 1.17** 1.05 1.30 1.11 0.99 1.24



Risk of H1N1 Infection
 Low Risk 1.00 1.00 1.00 1.00
 High Risk 5.87*** 5.25 6.56 6.06*** 5.42 6.78 5.44*** 4.85 6.10 4.75*** 4.21 5.37



Worry about Vaccine
 High Worry 1.00 1.00 1.00 1.00
 Low Worry 0.92 0.82 1.04 0.88* 0.78 0.99 0.89 0.79 1.01 0.94 0.83 1.06



Effectiveness of Vaccine
 Low Effectiveness 1.00 1.00 1.00 1.00
 High Effectiveness 4.70*** 3.67 6.03 4.45*** 3.46 5.71 4.59*** 3.55 5.94 4.31*** 3.30 5.62



Poverty Status
 Below Poverty 1.00 1.00 1.00
 <=$75,000, above poverty 1.00 0.81 1.23 0.98 0.79 1.22 0.95 0.76 1.17
 >$75,000 1.19 0.94 1.50 1.17 0.92 1.48 1.06 0.84 1.34



Education
 <12 Years 1.00 1.00 1.00
 12 Years 1.24 0.97 1.57 1.22 0.95 1.56 1.14 0.89 1.46
 Some College 1.36** 1.08 1.72 1.26 0.99 1.61 1.13 0.88 1.45
 College Graduate 1.91*** 1.51 2.40 1.83*** 1.44 2.33 1.61*** 1.25 2.06



Marital Status
 Not Married 1.00 1.00 1.00
 Married 1.25*** 1.11 1.40 1.24*** 1.11 1.39 1.15* 1.01 1.30



Close Contact Child <6 months
 No 1.00 1.00
 Yes 1.50*** 1.24 1.82 1.28* 1.05 1.54



Healthcare Worker
 No 1.00 1.00
 Yes 2.26*** 1.95 2.62 2.13*** 1.84 2.47



Chronic Condition
 No 1.00 1.00
 Yes 1.40*** 1.25 1.57 1.14* 1.02 1.29



Health Insurance Status
 No 1.00
 Yes 2.04*** 1.63 2.55



Dr. Recommendation
 No 1.00
 Yes 5.51*** 4.92 6.17



Valid n 33,165 27,000 23,426 23,256 19,869
Analytical n 33,329 33,329 33,329 33,329 33,329

Note: Adjusted Odds Ratio (AOR) and Confidence Interval (CI) calculated using FIML estimation (Mplus).

p < 0.1.

*

p < 0.05.

**

p < 0.01.

***

p < 0.001.