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Table 2 How Caregivers Know When to Take Their Child for Immunizations. Adjusted Odds Ratios Predicting Up-to-date Status for 4:3:1:3:3 a, United States, National Immunization Survey, Parental Knowledge and Experiences Questionnaire, July 2001 – December 2002.b

From: How do caregivers know when to take their child for immunizations?

 

Variable

Adjusted Odds Ratio

95% CI

How did you know when to take your child for his/her most recent immunization?

Doctor/Nurse at Previous Immunization Visit

  
 

   Chosen c

1.4

(1.0, 1.8) d

 

   Not Chosen

1.0

Referent

 

Shot Card/Record

  
 

   Chosen

0.9

(0.7, 1.2)

 

   Not Chosen

1.0

Referent

 

Reminder/Recall e

  
 

   Chosen

1.1

(0.7, 1.7)

 

   Not Chosen

1.0

Referent

 

Other f

  
 

   Chosen

1.2

(0.8, 1.6)

 

   Not Chosen

1.0

Referent

 

First Born Status

  
 

No

1.0

Referent

 

Yes

1.5

(1.2, 1.8)

 

Age of Mother

  
 

≤ 19 Years

1.0

Referent

 

20–29 Years

0.8

(0.4, 1.4)

 

≥ 30 Years

1.2

(0.6, 2.2)

 

Poverty Status g

  
 

Above, > $75 K

2.0

(1.4, 2.9)

 

Above, ≤ $75 K

1.6

(1.2, 2.1)

 

Below

1.0

Referent

 

Unknown

2.2

(1.5, 3.4)

 

Metropolitan Statistical Area (MSA) Status

  
 

MSA Central City

1.0

Referent

 

MSA Non-Central City

1.4

(1.1, 1.7)

 

Non-MSA

1.2

(0.9, 1.7)

 

Time from Last Immunization to Interview

  
 

   ≤ 6 months

2.8

(1.9, 4.1)

 

   7 – 12 months

2.0

(1.5, 2.7)

 

   ≥ 13 months

1.0

Referent

 

Age of Child at Interview

  
 

   19 – 24 months

0.3

(0.2, 0.4)

 

   25 – 29 months

0.6

(0.5, 0.8)

 

   30 – 35 months

1.0

Referent

  1. a 4 or more doses of diphtheria and tetanus toxoids and pertussis vaccine, 3 or more doses of poliovirus vaccine, 1 or more doses of measles-containing vaccine, 3 or more doses of Haemophilus influenzae type b vaccine, and 3 or more doses of hepatitis B vaccine at 19–35 months of age
  2. b Children in the Q3/2001–Q4/2002 National Immunization Survey were born between August 1998 and June 2001.
  3. c Respondents could choose more than one response
  4. d The lower bound was 1.01; the confidence interval (1.01, 1.8) does not contain 1.0.
  5. e Outreach worker called/came to house to tell me, health department called me/sent me reminder, or physician's office called me/sent me reminder
  6. f Relative/friend told me, found out during visit to doctor or other healthcare provider, day care/headstart requirement, WIC (Women, Infants, and Children) nurse told me, government program requirement, or other
  7. g Poverty level depends on household income, year data was collected, and number of people living in household and is determined by the US Bureau of Census poverty threshold.