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Table 2 Association of education, and zip code median income quintile with in-hospital, discharge to 1 year, and 1-5 year mortality after a first apparent myocardial infarction in women

From: Individual education, area income, and mortality and recurrence of myocardial infarction in a Medicare cohort: the National Longitudinal Mortality Study

 

All women

Women 66-79 years

Women 80+ years

RR or HRR

95% Conf int

P value

RR or HRR

95% Conf int

P value

RR or HRR

95% Conf int

value

In Hospital Mortality

  N (Events)

8,043

(1153)

 

4,223

(454)

 

3,820

(699)

 

  Ed < HS

1.07

(0.84, 1.37)

0.578

0.87

(0.58, 1.31)

0.518

1.18

(0.86, 1.62)

0.307

  Ed HS < BS

1.06

(0.83, 1.35)

0.644

0.78

(0.52, 1.18)

0.240

1.25

(0.92, 1.71)

0.156

  Zip Inc q1

1.05

(0.86, 1.28)

0.640

1.40

(1.02, 1.92)

0.037

0.85

(0.65, 1.11)

0.245

  Zip Inc q2

1.01

(0.84, 1.20)

0.931

1.18

(0.88, 1.60)

0.272

0.93

(0.74, 1.16)

0.511

  Zip Inc q3

0.91

(0.76, 1.09)

0.332

0.99

(0.72, 1.36)

0.939

0.88

(0.71, 1.10)

0.268

  Zip Inc q4

0.91

(0.76, 1.08)

0.261

0.89

(0.66, 1.20)

0.434

0.94

(0.76, 1.17)

0.596

Discharge - 365 day Mortality

  N (Events)

6,852

(1392)

 

3,760

(484)

 

3,092

(908)

 

  Ed < HS

1.07

(0.87, 1.32)

0.516

1.23

(0.80, 1.89)

0.347

1.03

(0.82, 1.31)

0.779

  Ed HS < BS

0.95

(0.77, 1.17)

0.620

0.95

(0.62, 1.47)

0.834

0.97

(0.76, 1.24)

0.824

  Zip Inc q1

1.02

(0.86, 1.22)

0.785

0.86

(0.62, 1.20)

0.377

1.10

(0.90, 1.35)

0.344

  Zip Inc q2

1.05

(0.90, 1.23)

0.505

0.93

(0.70, 1.24)

0.626

1.10

(0.92, 1.31)

0.291

  Zip Inc q3

0.98

(0.84, 1.15)

0.831

0.92

(0.69, 1.22)

0.546

1.01

(0.84, 1.21)

0.898

  Zip Inc q4

0.98

(0.84, 1.14)

0.771

0.80

(0.59, 1.09)

0.158

1.07

(0.90, 1.28)

0.444

366 days - 5 year Mortality

  N (Events)

5,460

(729)

 

3,276

(900)

 

2,184

(1518)

 

  Ed < HS

1.19

(0.95, 1.50)

0.138

1.61

(1.03, 2.50)

0.035

0.99

(0.76, 1.30)

0.962

  Ed HS < BS

1.08

(0.86, 1.35)

0.531

1.41

(0.92, 2.18)

0.117

0.91

(0.69, 1.20)

0.501

  Zip Inc q1

1.00

(0.82, 1.21)

0.986

1.11

(0.83, 1.47)

0.486

0.93

(0.72, 1.21)

0.605

  Zip Inc q2

0.95

(0.80, 1.13)

0.576

0.95

(0.73, 1.24)

0.721

0.96

(0.77, 1.21)

0.754

  Zip Inc q3

0.94

(0.80, 1.11)

0.474

1.06

(0.83, 1.35)

0.656

0.86

(0.69, 1.08)

0.203

  Zip Inc q4

1.01

(0.86, 1.19)

0.919

1.04

(0.82, 1.32)

0.756

1.00

(0.81, 1.25)

0.971

  1. Abbreviations: RR Relative Risk (In-hospital and Discharge - 365 day mortality), HRR Hazard Rate Ratio (1-5 year mortality), Ed < HS Education less than a high school diploma, Ed HS < BS At least a high school diploma, but no college degree.
  2. Adjusted for Age, race, hx of hypertension, hx of diabetes, hx of lipidemia, hx of CHD, hx of stroke, and coronary revascularization (PCI or CABG) during hospitalization, year of MI.
  3. Education referent group is college degree or more. Zip code median income referent group is quintile 5 (highest median income).
  4. Italicized associations, confidence intervals, and p-values denote those significant at alpha<0.05.
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