Outcome

variable

Levels

Both race and institution

Only race

Only institution

Odds Ratio (95% CI)

P-value2

Odds Ratio (95% CI)

P-value2

Odds Ratio (95% CI)

P-value2

Adenoma

Age

Every 1 year increase in Age

1.027

(1.01 - 1.04)

0.0009

1.028

(1.01 - 1.04)

0.0006

1.027

(1.01 - 1.04)

0.001

BMI

Every 1 unit increase in BMI

0.987

(0.97 - 1.01)

0.1658

0.986

(0.97 - 1)

0.1483

0.985

(0.97 - 1)

0.1247

Insurance

Private vs Medicare

0.767

(0.53 - 1.1)

0.404

0.754

(0.53 - 1.08)

0.3508

0.778

(0.54 - 1.12)

0.4401

Private vs Medicaid

1.053

(0.79 - 1.4)

1.04

(0.79 - 1.38)

1.055

(0.79 - 1.41)

Private vs Self-Pay

1.003

(0.71 - 1.41)

1.047

(0.75 - 1.46)

1.026

(0.73 - 1.44)

Medicare vs Medicaid

1.373

(0.94 - 1.99)

1.379

(0.95 - 2)

1.355

(0.93 - 1.97)

Medicare vs Self-Pay

1.308

(0.86 - 2)

1.389

(0.92 - 2.1)

1.318

(0.86 - 2.01)

Medicaid vs Self-Pay

0.953

(0.69 - 1.31)

1.007

(0.74 - 1.37)

0.972

(0.71 - 1.33)

Institution

DMC vs Kings county

1.515

(0.94 - 2.43)

0.0694

.

1.521

(0.95 - 2.43)

0.2029

DMC vs SBUMC

1.605

(0.99 - 2.59)

1.2

(0.87 - 1.65)

Kings county vs SBUMC

1.059

(0.59 - 1.89)

0.789

(0.51 - 1.21)

Gender

Female vs Male

0.626

(0.5 - 0.78)

<0.0001

0.615

(0.5 - 0.76)

<0.0001

0.615

(0.5 - 0.76)

<0.0001

Race combined

White vs Black

1.426

(0.89 - 2.29)

0.1116

1.094

(0.82 - 1.47)

0.3334

White vs Other

0.849

(0.53 - 1.37)

0.781

(0.49 - 1.24)

Black vs Other

0.596

(0.36 - 0.98)

0.714

(0.46 - 1.12)

Ethnicity

Hispanic vs Non-Hispanic

0.986

(0.6 - 1.62)

0.957

1.062

(0.65 - 1.74)

0.812

1.276

(0.84 - 1.94)

0.256

Type of attending

Consultant vs Teaching

0.741

(0.49 - 1.12)

0.1543

0.59

(0.45 - 0.77)

<0.0001

0.746

(0.49 - 1.13)

0.1631

Fellow

Yes vs No

1.176

(0.8 - 1.74)

0.4155

1.001

(0.71 - 1.41)

0.9973

1.184

(0.8 - 1.75)

0.3954

Tobacco use

Current vs Not current

1.499

(1.07 - 2.11)

0.0195

1.522

(1.09 - 2.13)

0.0147

1.485

(1.06 - 2.08)

0.0225

Diabetes

Yes vs No

1.265

(0.98 - 1.63)

0.066

1.267

(0.99 - 1.63)

0.0644

1.254

(0.98 - 1.61)

0.0761

HIV status

Yes vs No

0.473

(0.24 - 0.95)

0.0348

0.505

(0.25 - 1.01)

0.0523

0.466

(0.23 - 0.93)

0.031