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TABLE 2

Association Between Preterm Status and 7-Vaccine Series Completion by 19 and 36 Months of Age

Characteristic19 Months36 Months
Unadjusted OR (95% CI)Adjusted OR (95% CI)aUnadjusted OR (95% CI)Adjusted OR (95% CI)a
Preterm status (reference: term/postterm) 0.77 (0.70–0.85)* 0.77 (0.65–0.90)* 0.70 (0.63–0.78)* 0.73 (0.61–0.87)* 
Race and/or ethnicity (reference: white, non-Hispanic)     
 Black, non-Hispanic  1.09 (0.94–1.26)  1.41 (1.21–1.65)* 
 Hispanic  1.11 (0.92–1.35)  1.34 (1.07–1.67)* 
 Asian  1.90 (1.63–2.20)*  1.84 (1.54–2.20)* 
 Multiracial or other  0.93 (0.68–1.26)  0.97 (0.69–1.38) 
Insurance (reference: private)     
 Public or uninsured  0.63 (0.56–0.70)*   
Maternal language (reference: English)     
 Spanish  1.92 (1.52–2.43)*  1.94 (1.45–2.60)* 
 Other  1.08 (0.93–1.26)  1.06 (0.88–1.27) 
Birth hospitalization duration, h (reference: 24–47 h)     
 <24  0.53 (0.44–0.63)*  0.41 (0.34–0.50)* 
 48–95  0.94 (0.85–1.05)  0.90 (0.80–1.02) 
 ≥96  0.96 (0.81–1.14)  0.85 (0.70–1.03) 
Characteristic19 Months36 Months
Unadjusted OR (95% CI)Adjusted OR (95% CI)aUnadjusted OR (95% CI)Adjusted OR (95% CI)a
Preterm status (reference: term/postterm) 0.77 (0.70–0.85)* 0.77 (0.65–0.90)* 0.70 (0.63–0.78)* 0.73 (0.61–0.87)* 
Race and/or ethnicity (reference: white, non-Hispanic)     
 Black, non-Hispanic  1.09 (0.94–1.26)  1.41 (1.21–1.65)* 
 Hispanic  1.11 (0.92–1.35)  1.34 (1.07–1.67)* 
 Asian  1.90 (1.63–2.20)*  1.84 (1.54–2.20)* 
 Multiracial or other  0.93 (0.68–1.26)  0.97 (0.69–1.38) 
Insurance (reference: private)     
 Public or uninsured  0.63 (0.56–0.70)*   
Maternal language (reference: English)     
 Spanish  1.92 (1.52–2.43)*  1.94 (1.45–2.60)* 
 Other  1.08 (0.93–1.26)  1.06 (0.88–1.27) 
Birth hospitalization duration, h (reference: 24–47 h)     
 <24  0.53 (0.44–0.63)*  0.41 (0.34–0.50)* 
 48–95  0.94 (0.85–1.05)  0.90 (0.80–1.02) 
 ≥96  0.96 (0.81–1.14)  0.85 (0.70–1.03) 

CI, confidence interval; OR, odds ratio.

*

P < .05.

a

All variables included in multivariable logistic regression models were associated with 7-vaccine series completion in the bivariate analysis.

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