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Table 3 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 men

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

 

All men

Men 66-79 years

Men 80+ years

 

RR or HRR

95% Conf int

P value

RR or HRR

95% Conf int

P value

RR or HRR

95% Conf int

P value

In Hospital Mortality

 N (Events)

7,929

(1059)

 

5,314

(527)

 

2,615

(532)

 

 Ed < HS

1.07

(0.87, 1.31)

0.544

1.06

(0.78, 1.43)

0.720

1.09

(0.82, 1.43)

0.558

 Ed HS < BS

1.02

(0.83, 1.26)

0.819

1.04

(0.77, 1.40)

0.812

1.01

(0.76, 1.34)

0.955

 Zip Inc q1

1.06

(0.84, 1.33)

0.636

1.08

(0.78, 1.49)

0.648

1.03

(0.74, 1.42)

0.875

 Zip Inc q2

1.04

(0.85, 1.27)

0.707

1.03

(0.77, 1.39)

0.831

1.05

(0.80, 1.36)

0.739

 Zip Inc q3

1.14

(0.95, 1.38)

0.165

1.19

(0.90, 1.57)

0.227

1.10

(0.86, 1.42)

0.442

 Zip Inc q4

1.04

(0.87, 1.25)

0.659

0.92

(0.69, 1.21)

0.538

1.17

(0.92, 1.49)

0.198

Discharge - 365 day Mortality

 N (Events)

6,850

(1377)

 

4,776

(709)

 

2,074

(668)

 

 Ed < HS

1.00

(0.85, 1.17)

0.953

0.99

(0.78, 1.25)

0.918

1.00

(0.80, 1.25)

0.978

 Ed HS < BS

0.97

(0.82, 1.14)

0.685

0.90

(0.71, 1.14)

0.374

1.04

(0.83, 1.31)

0.714

 Zip Inc q1

1.24

(1.04, 1.48)

0.016

1.15

(0.88, 1.49)

0.303

1.31

(1.03, 1.67)

0.026

 Zip Inc q2

1.07

(0.92, 1.26)

0.379

0.92

(0.72, 1.17)

0.486

1.25

(1.02, 1.54)

0.031

 Zip Inc q3

1.03

(0.88, 1.21)

0.709

0.95

(0.75, 1.20)

0.663

1.13

(0.92, 1.39)

0.254

 Zip Inc q4

1.15

(0.99, 1.33)

0.072

1.05

(0.84, 1.31)

0.669

1.25

(1.03, 1.52)

0.027

366 days - 5 year Mortality

 N (Events)

5,473

(1518)

 

4,067

(901)

 

1,406

(617)

 

 Ed < HS

1.21

(0.99, 1.48)

0.066

1.37

(1.06, 1.76)

0.017

0.99

(0.71, 1.40)

0.969

 Ed HS < BS

1.27

(1.04, 1.55)

0.021

1.32

(1.03, 1.69)

0.030

1.16

(0.82, 1.64)

0.393

 Zip Inc q1

1.30

(1.07, 1.59)

0.009

1.30

(1.00, 1.69)

0.052

1.33

(0.98, 1.81)

0.068

 Zip Inc q2

1.03

(0.86, 1.24)

0.739

1.07

(0.85, 1.34)

0.576

0.99

(0.73, 1.33)

0.921

 Zip Inc q3

0.95

(0.80, 1.13)

0.588

1.03

(0.83, 1.28)

0.785

0.86

(0.65, 1.14)

0.306

 Zip Inc q4

1.13

(0.96, 1.33)

0.146

1.07

(0.87, 1.32)

0.516

1.25

(0.97, 1.61)

0.091

  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.