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Table 2 Medicaid measures and coverage status, in the subset of patients with a Medicaid ID

From: Electronic health record tools to assist with children’s insurance coverage: a mixed methods study

 

Intent To Treat (ITT)

Effect of Treatment on the Treated (ETOT)

Intervention clinic patients only

 

Intervention clinic patients with Medicaid ID

N = 13614

Control clinic patients with Medicaid ID

N = 11729

p-valuea

Patients with Medicaid ID with tool use

N = 2080

Patients with Medicaid ID without tool use

N = 11534

p-valuea

Medicaid case characteristics and coverage status

Other family member(s) on case, N (%)

 

<.001

  

<.001

Yes

11547 (84.8)

10288 (87.7)

 

1848 (88.9)

9699 (84.1)

 

No

2067 (15.2)

1441 (12.3)

 

232 (11.1)

1835 (15.9)

 

How long the family was established with clinic, at study start date, N (%)

 

<.001

  

<.001

Not established

2164 (15.9)

1856 (15.8)

 

113 (5.4)

2051 (17.8)

 

< 1 yr.

697 (5.1)

645 (5.5)

 

41 (2.0)

656 (5.7)

 

1 - < 3 yrs.

1402 (10.3)

1496 (12.8)

 

149 (7.2)

1253 (10.9)

 

3 - < 6 yrs.

2162 (15.9)

1989 (17.0)

 

293 (14.1)

1869 (16.2)

 

≥6 yrs.

7189 (52.8)

5743 (49.0)

 

1484 (71.4)

5705 (49.5)

 

Percent of study periodb covered by Medicaid, N (%)

 

<.001

  

<.001

0%

481 (3.5)

297 (2.5)

 

30 (1.4)

451 (3.9)

 

< 50%

1175 (8.6)

933 (8.0)

 

113 (5.4)

1062 (9.2)

 

50–99%

3846 (28.3)

3386 (28.9)

 

648 (31.2)

3198 (27.7)

 

100%

8112 (59.6)

7113 (60.6)

 

1289 (62.0)

6823 (59.2)

 

Coverage change outcomes, among patients with partial Medicaid coveragec

 

Intervention clinic patients, partial coverage

N = 5021

Control clinic patients, partial coverage

N = 4319

Adjusted odds ratioe (95% CI)

Patients with tool use, partial coverage

N = 761

Patients without tool use, partial coverage

N = 4260

Adjusted odds ratioe (95% CI)

Gained coveraged, N (%)

3055 (60.8)

2426 (56.2)

1.32 (1.14, 1.51)

444 (58.3)

2611 (61.3)

1.83 (1.64, 2.04)

Lost coveraged, N (%)

2250 (44.8)

2173 (50.3)

0.77 (0.68, 0.88)

377 (49.5)

1873 (44.0)

0.70 (0.53, 0.91)

  1. Data source = Medicaid enrollment data
  2. BOLD = adjusted odds ratio significantly different from 1.0 (p < 0.05)
  3. aχ2 tests of independence
  4. bPeriod assessed = 12/1/2013–9/30/2015
  5. c‘Partial Medicaid coverage’ = patient had Medicaid coverage for only part of the assessment period (12/1/2013–9/30/2015)
  6. d‘Gained coverage’ = gained Medicaid after a period of being uninsured. ‘Lost coverage’ = lost Medicaid coverage after a period of insurance, including experiencing a gap in coverage
  7. eLogistic GEE models clustered by clinic; adjusted for sex, age, race/ethnicity, primary language, federal poverty level, number of encounters in study period, new/established patient at first encounter, household member(s) on case (Y/N), length of time household established with clinic