TABLE 3.

Percentages of Children at Levels of Child, Maternal, and Household Characteristics According to UTD Status: Results of the Logistic Regression Analysis (2001 NIS)

Percent (95% CI)Odds Ratio, Undervaccinated Versus Fully Vaccinated (95% CI)
Unvaccinated ChildrenUndervaccinated ChildrenFully Vaccinated Children
NUTD on All 6 Vaccines, but 1 Dose≥NUTD on 2–5 VaccinesNUTD on 1 Vaccine Only
Child characteristics
 Race/ethnicity
  Hispanic6.8 (±5.9)21.3 (±6.6)20.9 (±2.5)21.8 (±2.0)24.4 (±1.2)0.9 (0.8–1.0)
  White, non-Hispanic*82.0 (±10.3)52.0 (±7.5)54.0 (±3.1)59.0 (±2.2)56.8 (±1.3)1.0 (1.0–1.0)
  Black, non-Hispanic9.3 (±8.8)23.6 (±6.8)19.4 (±2.6)15.0 (±1.8)13.5 (±1.0)1.3 (1.2–1.5)
   Asian, non-Hispanic2.0 (±2.3)2.5 (±1.7)4.4 (±1.2)3.1 (±0.6)4.3 (±0.6)0.9 (0.7–1.1)
 Gender
  Male*57.3 (±13.1)47.5 (±7.4)52.9 (±3.0)50.4 (±2.2)51.1 (±1.3)1.0 (1.0–1.0)
  Female42.7 (±13.1)52.5 (±7.4)47.1 (±3.0)49.6 (±2.2)48.9 (±1.3)1.0 (0.9–1.1)
 Age of child
  19–24 mo36.7 (±13.0)50.7 (±7.5)45.6 (±3.0)36.6 (±2.1)33.6 (±1.3)1.5 (1.3–1.6)
  25–29 mo28.2 (±12.1)21.1 (±5.6)26.4 (±2.5)28.8 (±2.0)29.6 (±1.2)1.1 (1.0–1.2)
  30–35 mo*35.2 (±13.5)28.1 (±6.5)28.0 (±2.8)34.6 (±2.1)36.7 (±1.3)1.0 (1.0–1.0)
 Foreign born
  Yes1.7 (±3.0)0.5 (±0.7)2.7 (±0.9)1.1 (±0.4)1.0 (±0.3)1.8 (1.3–2.7)
  No*98.3 (±3.0)99.5 (±0.7)97.3 (±0.9)98.9 (±0.4)99.0 (±0.3)1.0 (1.0–1.0)
Maternal characteristics
 Marital status
  Widowed/divorced/separated6.4 (±9.1)12.8 (±5.4)10.1 (±1.9)9.8 (±1.4)8.0 (±0.8)1.4 (1.2–1.6)
  Never married16.9 (±10.3)27.0 (±6.7)25.1 (±3.0)20.7 (±2.0)19.6 (±1.2)1.3 (1.1–1.5)
  Married*76.8 (±12.6)60.2 (±7.4)64.8 (±3.1)69.5 (±2.2)72.3 (±1.3)1.0 (1.0–1.0)
 Educational attainment
  <12 y16.0 (±10.9)18.8 (±5.2)20.6 (±2.8)15.3 (±1.7)16.2 (±1.1)1.4 (1.3–1.7)
  12 y32.1 (±12.8)49.8 (±7.5)39.6 (±3.1)38.7 (±2.2)34.8 (±1.4)1.5 (1.3–1.6)
  >12 y, non-college graduate15.1 (±12.3)13.7 (±5.5)14.9 (±1.9)15.0 (±1.5)14.1 (±0.9)1.3 (1.2–1.5)
  College graduate*36.8 (±12.2)17.7 (±4.4)24.8 (±2.3)31.0 (±1.9)34.8 (±1.2)1.0 (1.0–1.0)
 Preferred language
  English92.5 (±6.5)89.6 (±4.1)87.4 (±2.2)88.1 (±1.5)85.5 (±1.1)1.2 (1.1–1.4)
  Spanish*5.0 (±5.5)9.6 (±4.0)10.1 (±1.9)10.8 (±1.4)12.8 (±1.0)1.0 (1.0–1.0)
  Other2.6 (±3.6)0.9 (±0.8)2.5 (±1.2)1.1 (±0.4)1.7 (±0.4)1.3 (0.8–2.0)
 Age
  ≤19 y5.7 (±8.6)4.9 (±3.3)4.8 (±1.8)3.1 (±0.8)4.1 (±0.6)1.1 (0.8–1.5)
  20–29 y33.1 (±13.1)59.8 (±7.1)49.8 (±3.1)47.4 (±2.2)43.3 (±1.3)1.3 (1.2–1.4)
  ≥30 y*61.2 (±13.8)35.3 (±6.8)45.4 (±3.0)49.6 (±2.2)52.6 (±1.3)1.0 (1.0–1.0)
Household characteristics
 Annual family income
  Above, >$75 000*21.8 (±12.0)5.8 (±2.4)11.4 (±1.6)14.4 (±1.4)17.3 (±0.9)1.0 (1.0–1.0)
  Above, <$75 00039.5 (±12.9)49.3 (±7.5)47.9 (±3.0)50.2 (±2.2)48.7 (±1.3)1.4 (1.3–1.6)
  Below19.0 (±11.0)29.2 (±6.6)25.8 (±2.9)21.9 (±2.0)19.6 (±1.2)1.7 (1.5–2.0)
  Unknown19.7 (±11.8)15.7 (±7.0)14.9 (±2.8)13.4 (±1.7)14.4 (±1.1)1.4 (1.2–1.7)
 No. of children ≤18 y in the household
  1 child*9.5 (±6.3)22.2 (±6.2)21.1 (±2.5)25.4 (±1.9)29.0 (±1.2)1.0 (1.0–1.0)
  2 or 3 children43.3 (±13.4)53.7 (±7.5)60.8 (±3.0)62.0 (±2.2)59.5 (±1.3)1.3 (1.1–1.4)
  ≥4 children47.2 (±13.9)24.1 (±6.7)18.1 (±2.6)12.6 (±1.5)11.5 (±1.0)1.8 (1.5–2.1)
 Moved from different state since child's birth
  Moved from different state15.4 (±10.0)12.4 (±4.8)12.8 (±1.9)8.3 (±1.2)8.8 (±0.9)1.3 (1.1–1.5)
  Did not move from different state*84.6 (±10.0)87.6 (±4.8)87.2 (±1.9)91.7 (±1.2)91.2 (±0.9)1.0 (1.0–1.0)
 Living in a MSA
  MSA, central city32.4 (±12.9)44.5 (±7.2)36.6 (±2.8)34.8 (±2.1)36.4 (±1.3)1.1 (1.0–1.2)
  MSA, non-central city*41.2 (±13.3)35.3 (±7.7)45.4 (±3.1)42.8 (±2.2)46.5 (±1.3)1.0 (1.0–1.0)
  Non-MSA26.4 (±12.6)20.2 (±5.8)18.0 (±2.1)22.5 (±1.7)17.1 (±0.9)1.2 (1.1–1.4)
  • * Reference level for the logistic regression analysis.