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Table 8 Linear Regressions on Multiply Imputed Data

From: Causal inference multiple imputation investigation of the impact of cannabinoids and other substances on ethnic differentials in US testicular cancer incidence

Parameters

Model

Parameter

Estimate (C.I.)

P-Value

No. Imputa- tions

S.D.

Lambda

FMI

Ethnic_THC_Exposure Alone

 lm(TestCaRt ~ Ethnic_THC_Exposure)

  Ethnic_THC_Exposure

0.68 (0.62, 0.74)

1.80E-92

256

1.7000

0.0292

0.0299

Ethnic_THC_Exposure * Race

 lm(TestCaRt ~ Ethnic_THC_Exposure + Race)

  NHWhite-American

4.17 (4.08, 4.26)

<< 9.8E-324

256

0.8183

0.0560

0.0568

  Hispanic-American

2.63 (2.53, 2.73)

<< 2.4E-315

  

0.1681

0.1690

  Asian-American

1.1 (0.98, 1.21)

2.45E-70

  

0.1018

0.1026

  Ethnic_THC_Exposure

0.19 (0.14, 0.24)

7.99E-15

  

0.1521

0.1530

Additive - Drugs

 lm(TestCaRt ~ Cigarettes + AUD + Ethnic_THC_Exposure + Analgesics + Cocaine)

  Ethnic_THC_Exposure

0.72 (0.66, 0.79)

9.10E-99

256

1.6893

0.0313

0.0321

  AUD

12.64 (8.37, 16.91)

7.28E-09

  

0.0391

0.0399

Interactive Full Model

 lm(TestCaRt ~ Cigarettes + AUD + Ethnic_THC_Exposure + Analgesics + Cocaine + 5_Races + MHY + Cigarettes.AUD + Cigarettes.EthnTHCExpRt + EthnTHCExpRt.AUD)

  NHWhite-American

4.2 (4.11, 4.29)

<< 3.1E-322

256

0.8017

0.0636

0.0644

  Hispanic-American

2.59 (2.5, 2.69)

<< 8.9E-323

  

0.1727

0.1737

  Asian-American

0.99 (0.87, 1.11)

1.99E-52

  

0.1129

0.1138

  AUD

6.45 (4.21, 8.68)

2.01E-08

  

0.1491

0.1500

  Ethnic_THC_Exposure

0.12 (0.07, 0.18)

1.89E-05

  

0.1658

0.1667

  Analgesics

−5.31 (−8.82, −1.8)

3.04E-03

  

0.1167

0.1175

  Cigarettes

−3.72 (−4.64, −2.8)

3.55E-15

  

0.1336

0.1345

Quintiles

 lm(TestCaRt ~ Quintile)

  Quintile 2

0.02 (−0.2, 0.24)

0.8801

256

1.8379

0.0261

0.0268

  Quintile 3

0.1 (−0.12, 0.32)

0.3566

  

0.0295

0.0302

  Quintile 4

0.2 (−0.02, 0.42)

0.0755

  

0.0247

0.0255

  Quintile 5

0.29 (0.06, 0.51)

0.0118

  

0.0331

0.0338

Dichotomized Quintiles

 lm(TestCaRt ~ Dichotomized_Quintiles)

  Upper_2_Quintiles

0.2 (0.06, 0.35)

0.0058

256

1.8375

0.0309

0.0316