Table 3.

Logistic regression analyses of factors associated with Tdap vaccination at 27–36 weeks and 27–32 weeks gestation among pregnant women, MarketScan 2016

	Vaccinated at 27–36 weeks		Vaccinated at 27–32 weeks
	Unadjusted Odds Ratio (95% CI)	Adjusted Odds Ratio (95% CI)	Unadjusted Odds Ratio (95% CI)	Adjusted Odds Ratio (95% CI)
Age
15–18 years	Referent	Referent	Referent	Referent
19–34 years	1.73 (1.65–1.82)	1.73 (1.65–1.82)	1.71 (1.61–1.80)	1.72 (1.63–1.82)
35–49 years	1.81 (1.73–1.91)	1.78 (1.69–1.87)	1.66 (1.57–1.76)	1.67 (1.57–1.76)
Residence in Metropolitan Statistical Area
No	Referent	Referent	Referent	Referent
Yes	1.41 (1.39–1.43)	1.38 (1.36–1.40)	1.30 (1.28–1.33)	1.32 (1.29–1.34)
Region of policyholder residence
Northeast	1.43 (1.41–1.45)	1.39 (1.37–1.41)	1.26 (1.24–1.28)	1.23 (1.22–1.25)
North Central	2.00 (1.97–2.02)	2.01 (1.98–2.03)	1.85 (1.83–1.88)	1.86 (1.83–1.88)
South	Referent	Referent	Referent	Referent
West	1.55 (1.53–1.57)	1.51 (1.49–1.53)	1.32 (1.30–1.34)	1.30 (1.28–1.31)
Partially or fully capitated insurance plan
No	Referent	Referent	Referent	Referent
Yes	1.08 (1.07–1.10)	1.06 (1.05–1.08)	1.04 (1.02–1.06)	1.03 (1.01–1.04)

^*Odds ratios adjusted for all other covariates shown.