Table 4.

Multivariable multinomial logistic regression to evaluate odds of underreport and over-report by sample characteristics from NIS-Teen, 2008–2013 (N=51,702)^a

Characteristics	Overreport initiation aOR (95% CI)	Underreport initiation aOR (95% CI)	Over-report number of vaccines aOR (95% CI)	Underreport number of vaccines aOR (95% CI)
Age
13	0.63 (0.51–0.79)	0.99 (0.82–1.20)	0.61 (0.51–0.74)	0.68 (0.59–0.80)
14	0.76 (0.61–0.94)	1.04 (0.86–1.25)	0.68 (0.59–0.80)	0.82 (0.71–0.95)
15	0.80 (0.64–1.00)	1.12 (0.92–1.36)	0.81 (0.67–0.98)	0.95 (0.82–1.10)
16	0.95 (0.76–1.18)	1.09 (0.89–1.33)	0.91 (0.76–1.09)	0.93 (0.76–1.08)
17	Reference	Reference	Reference	Reference
Race/ Ethnicity
Hispanic	1.16 (0.93–1.46)	1.72 (1.45–2.04)	1.26 (1.04–1.51)	1.82 (1.59–2.08)
White	Reference	Reference	Reference	Reference
Black	1.42 (1.16–1.74)	1.57 (1.33–1.85)	1.41 (1.18–1.68)	1.55 (1.36–1.77)
Other	1.25 (0.94–1.67)	1.67 (1.35–2.07)	1.16 (0.91–1.47)	1.57 (1.32–1.86)
Region
Northeast	Reference	Reference	Reference	Reference
Midwest	1.03 (0.85–1.25)	0.88 (0.75–1.02)	0.98 (0.83–1.15)	0.86 (0.77–0.97)
South	1.27 (1.06–1.52)	0.79 (0.69–0.91)	1.10 (0.94–1.29)	0.73 (0.65–0.81)
West	1.07 (0.83–1.38)	1.51 (1.25–1.81)	1.10 (0.94–1.29)	0.73 (0.65–0.81)
Income
<$20,000	1.10 (0.88–1.37)	2.18 (1.85–2.56)	1.29 (1.08–1.54)	1.98 (1.73–2.26)
$20,001– $50,000	1.01 (0.85–1.20)	1.33 (1.13–1.57)	1.16 (1.01–1.34)	1.25 (1.10–1.42)
$50,001+	Reference	Reference	Reference	Reference
Missing	0.88 (0.67–1.15)	1.56 (1.25–1.95)	0.71 (0.56–0.91)	1.20 (1.00–1.44)
Year of interview
2008	Reference	Reference	Reference	Reference
2009	1.06 (0.82–1.37)	1.04 (0.78–1.38)	1.11 (0.90–1.38)	1.28 (1.03–1.60)
2010	1.02 (0.7–1.34)	2.18 (1.73–2.75)	1.23 (0.98–1.53)	2.52 (2.08–3.06)
2011	1.15 (0.89–1.48)	1.55 (1.22–1.97)	1.51 (1.23–1.86)	2.38 (1.96–2.88)
2012	1.43 (1.11–1.85)	1.62 (1.26–2.08)	1.73 (1.40–2.13)	2.42 (1.98–2.95)
2013	1.40 (1.06–1.84)	1.53 (1.17–1.98)	1.56 (1.23–1.97)	2.70 (2.20–3.31)

^aModels are adjusted for all variables shown in the table.