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Table 2 Full model with individual random effect

From: What underlies the observed hospital volume-outcome relationship?

 

Log (Volume)

NACT

Log (TTS)

Outcome

Volume

 

0.1776b

−0.06186a

0.03918a

Volume2

 

−0.00398b

0.001565a

 

NACT

   

1.3354a

Volume x NACT

   

−0.04495b

HHI

0.000069a

0.2656

−0.5855a

0.5549

Age

−0.00809b

0.03235a

0.002483

−0.01579b

Prior cancer

0.07331

0.4834c

−0.08445c

0.1469

Presence of ascites

0.04846

1.0399a

0.04917

−0.3440

Histology:

 HGSC

0.2772b

0.7841a

−0.04014

−0.02137

 Other

Ref

Ref

Ref

Ref

 Unknown

0.1161

1.3856a

−0.2636a

0.5823c

FIGO Stage

 I

Ref

  

Ref

 II

0.1546

  

−0.1220

 III

0.2014

Ref

Ref

−0.7611a

 IV

0.3847c

0.4990

−0.06698

−1.6058a

Tumor Grade:

 1 or 2

Ref

Ref

Ref

Ref

 3

0.08637

−0.03375

−0.08266

0.1141

 Unknown

−0.2256

−0.1272

− 0.1305

−0.3597

Instruments:

 Closest

−0.5420a

   

 Log (Distance)

0.05269

   

 Population density

−0.00004c

   

 Density around hospital

0.000069a

   

 Median income

−0.00002

   

Constant

2.0824a

−5.4872a

−4.1430a

0.9480c

Gamma

0.1882c

−0.8914a

0.3683a

0.02188

Log Likelihood

− 1377.1646

   

AIC

2878.3

   

Observations

294

   
  1. Note: High-Grade Serous Carcinoma (HGSC); Neoadjuvant Chemotherapy (NACT); Complete tumor resection (outcome); modality in reference (Ref); Herfindahl-Hirschman Index (HHI); Duration from the end of chemotherapy to surgery (TTS). Significant at 1, 5, and 10% is indicated as a, b, and c, respectively