Table 6. National estimates for coverage with 4:3:1:3*

:3:1:4 vaccine series* among children 19-35 months by selected 

characteristics, National Immunization Survey-Child, 2016-2017†

 2016 2017

Dual§ Single¶ Difference** Dual Single Difference

 % (95% CI) % (95% CI) Percentage 

Points (95% CI) % (95% CI) % (95% CI) Percentage Points (95% CI)

Child's age 

 19 to 23 months 68.3 (65.7-70.9) 69.2 (66.3-72.1) -0.9 (-1.8-0.0) 65.6 (62.8-68.4) 67.5 (64.6-70.4) -1.9(-2.9--0.9) ††

 24 to 29 months 70.5 (67.6-73.4) 70.7 (67.5-73.9) -0.2 (-1.5-1.1) 72.0 (69.4-74.6) 72.1 (69.4-74.8) -0.1 (-1.2-1.0)

 30 to 35 months 73.0 (70.7-75.3) 73.1 (70.3-75.9) -0.1 (-1.1-0.9) 73.0 (70.7-75.3) 71.1 (68.4-73.8) 1.9 (1.1-2.7) ††

Child's sex

 Male 71.2 (69.1-73.3) 71.3 (68.8-73.8) -0.1 (-1.0-0.8) 69.7 (67.6-71.8) 70.2 (68.0-72.4) -0.5 (-1.2-0.2)

 Female 70.2 (68.0-72.4) 70.9 (68.5-73.3) -0.7 (-1.5-0.1) 71.2 (69.2-73.2) 70.6 (68.3-72.9) 0.6 (-0.3-1.5)

Child's Race/Ethnicity

 Non-Hispanic, White 72.2 (70.5-73.9) 73.0 (71.0-75.0) -0.8(-1.5- -0.1) †† 71.5 (69.7-73.3) 72.3 (70.5-74.1) -0.8 (-1.6 -0.0)

 Non-Hispanic, Black 64.1 (59.8-68.4) 63.7 (59.3-68.1) 0.4 (-1.6-2.4) 66.5 (62.1-70.9) 65.9 (61.2-70.6) 0.6 (-1.0-2.2)

 Hispanic 71.0 (67.2-74.8) 71.2 (67.1-75.3) -0.2 (-1.5-1.1) 70.4 (66.9-73.9) 69.5 (65.7-73.3) 0.9 (-0.2-2.0)

 Non-Hispanic, Other 71.6 (67.6-75.6) 71.5 (66.4-76.6) 0.1 (-2.0-2.2) 70.5 (66.5-74.5) 70.0 (65.3-74.7) 0.5 (-1.3-2.3)
Household Poverty 

Status 

 Below Poverty 72.5 (70.7-74.3) 72.2 (70.1-74.3) 0.3 (-0.4-1.0) 73.8 (72.2-75.4) 74.2 (72.5-75.9) -0.4 (-1.1-0.3)

 At or Above Poverty 66.0 (63.1-68.9) 67.9 (64.6-71.2) -1.9 (-3.1- -0.7) †† 62.8 (59.6-66.0) 61.5 (58.0-65.0) 1.3 (0.0-2.6)

MSA Status

 MSA, Principal City 71.3 (69.1-73.5) 71.2 (68.8-73.6) 0.1 (-0.6-0.8) 71.9 (69.7-74.1) 71.7 (69.3-74.1) 0.2 (-0.5-0.9)

 MSA, Non-Principal

City 71.1 (68.6-73.6) 71.7 (68.8-74.6) -0.6 (-1.8-0.6) 69.8 (67.4-72.2) 69.5 (67.0-72.0) 0.3 (-0.7-1.3)

 Non-MSA 67.0 (63.6-70.4) 68.5 (64.7-72.3) -1.5 (-3.1-0.1) 66.8 (63.6-70.0) 68.3 (65.2-71.4) -1.5 (-3.3-0.3)

Insurance Status

 No Medicaid, Private 

Only 76.0 (74.0-78.0) 75.0 (72.4-77.6) 1.0 (0.5-1.5) †† 76.5 (74.4-78.6) 77.1 (75.0-79.2) -0.6 (-1.4-0.2)

Any Medicaid 68.1 (65.8-70.4) 69.3 (66.7-71.9) -1.2(-2.2--0.2) †† 66.5 (64.1-68.9) 65.6 (63.0-68.2) 0.9(-0.1-1.9)

 Other 66.8 (60.2-73.4) 67.9 (61.4-74.4) -1.1 (-4.8-2.6) 69.2 (65.0-73.4) 68.1 (62.9-73.3) 1.1 (-0.6-2.8)

 Uninsured 51.0 (41.8-60.2) 51.6 (41.1-62.1) -0.6 (-3.5-02.3) 48.5 (41.2-55.8) 54.9 (47.5-62.3) -6.4(-9.5--3.3) ††

 Mother's 

Race/Ethnicity 

 Non-Hispanic, White 72.1 (70.5-73.7) 72.9 (71.0-74.8) -0.8†† (-1.5--0.1) 71.7 (70.0-73.4) 72.2 (70.4-74.0) -0.5 (-1.3-0.3)

 Non-Hispanic, Black 63.9 (59.7-68.1) 64.1 (59.7-68.5) -0.2 (-2.2-1.8) 64.6 (59.9-69.3) 64.8 (60.1-69.5) -0.2 (-2.7-2.3)
 Hispanic 72.2 (68.2-76.2) 72.4 (67.9-76.9) -0.2 (-1.7-1.3) 70.8 (67.0-74.6) 69.8 (65.7-73.9) 1.0(0.2-1.8) ††

 Non-Hispanic, Other 69.6 (64.6-74.6) 68.7 (62.4-75.0) 0.9 (-1.5-3.3) 70.5 (66.0-75.0) 69.9 (64.5-75.3) 0.6 (-1.2-2.4)

Mother's Education

 Less than 12 years 65.8 (61.2-70.4) 67.2 (62.0-72.4) -1.4 (-3.6-0.8) 63.2 (58.8-67.6) 63.1 (58.4-67.8) 0.1 (-1.3-1.5)

 12 years 65.5 (61.9-69.1) 66.5 (62.6-70.4) -1.0 (-2.6 -0.6) 66.3 (62.9-69.7) 65.8 (62.2-69.4) 0.5 (-1.2-2.2)

 More than 12 years, 

Non-College Graduate 70.6 (67.9-73.3) 71.9 (69.0-74.8) -1.3(-2.2--0.4) †† 70.2 (67.6-72.8) 68.7 (65.5-71.9) 1.5 (0.6-2.4) ††

 College Graduate 76.5 (74.6-78.4) 75.3 (72.7-77.9) 1.2 (0.7-1.7) †† 76.3 (74.2-78.4) 77.2 (75.-79.4) -0.9 (-1.8-0.0)

Mother's Age 

 Less than 20 years 79.0 (50.5-100) 83.7 (59.1- 100) -4.7(-8.3--1.1) †† 65.4 (45.1-85.7) 66.1 (44.2-88.0) -0.7 (-3.0-1.6)

 20 to 29 years 67.4 (64.8-70.0) 68.8 (66.1-71.5) -1.4(-2.5--0.3) †† 66.5 (64.1-68.9) 66.4 (64.0-68.8) 0.1 (-1.0-1.2)

 30 years or older 72.7 (70.8-74.6) 72.5 (70.3-74.7) 0.2 (-0.5-0.9) 72.9 (71.0-74.8) 72.9 (70.8-75.0) 0.0 (0.7-0.7)

Abbreviations: CI=confidence interval, MSA = Metropolitan Statistical Area * The 4:3:1:3*:3:1:4 vaccine series includes ≥4 doses of DTaP, ≥3 doses of poliovirus vaccine, ≥1 dose of measles-containing vaccine, the full series of Hib (≥3 or 

≥4 doses, depending on product type), ≥3 doses of HepB, ≥1 dose of varicella vaccine, and ≥4 doses of PCV. † Data for the 2016 survey year include children born during January 2013–May 2015 and for 2017 include children born during January 2014–May 2016.

§ Dual-frame is defined as households with both landlines and cell-phones. ¶ Single-frame is defined as households with only cellphones **Difference between proportion of dual households and the proportion of single households.

††Statistically significantly different from 0 at p<0.05.