Table 5 Injury, patient and hospital-level predictors of latent classes of diagnostic/treatment procedures based on a two-class solution of latent class analysis: 2004–2014 Nationwide Inpatient Sample (n = 266,586).

From: Two latent classes of diagnostic and treatment procedures among traumatic brain injury inpatients

 

Proportion

Class II vs. Class I

Loge OR (95% CI)

Injury characteristics

 Mild

0.38

Ref

 Moderate

0.38

1.32 (1.29, 1.36)

 Severe

0.23

1.58 (1.55, 1.62)

Patient characteristics

 Sex

   Male

0.74

Ref

   Female

0.26

− 0.089 (− 0.11, − 0.065)

 Age (years)

   18–24

0.18

Ref

  25–29

0.10

− 0.053 (− 0.09, − 0.013)

  30–34

0.09

− 0.10 (− 0.14, − 0.060)

  35–39

0.08

− 0.12 (− 0.16, − 0.076)

  40–44

0.09

− 0.14 (− 0.18, − 0.10)

  45–49

0.11

− 0.13 (− 0.17, − 0.09)

  50–54

0.12

− 0.10 (− 0.14, − 0.066)

  55–59

0.11

− 0.13 (− 0.16, − 0.09)

  60–64

0.09

− 0.16 (− 0.20, − 0.12)

 Race/ethnicity

  White

0.54

Ref

  Black

0.11

− 0.053 (− 0.088, − 0.018)

  Hispanic

0.11

− 0.001 (− 0.035, 0.033)

  Other

0.06

0.027 (− 0.018, 0.071)

  Unknown

0.18

− 0.10 (− 0.13, − 0.071)

 Primary payer

  Medicare

0.12

Ref

  Medicaid

0.18

0.38 (0.34, 0.42)

  Private insurance

0.42

0.18 (0.14, .22)

  Self-Pay

0.16

− 0.05 (− 0.09, − 0.01)

  No charge

0.01

− 0.26 (− 0.37, − 0.16)

  Other

0.10

0.08 (0.04, 0.13)

 Year of admission

  2004

0.09

Ref

  2005

0.07

0.11 (0.06, 0.17)

  2006

0.09

0.12 (0.07, 0.17)

  2007

0.08

0.11 (0.06, 0.15)

  2008

0.08

0.08 (0.03, 1.13)

  2009

0.08

0.12 (0.07, 0.17)

  2010

0.11

0.05 (0.008, 0.10)

  2011

0.09

0.07 (0.02, 0.12)

  2012

0.09

− 0.033 (− 0.09, 0.03)

  2013

0.09

0.12 (− 0.04, 0.30)

  2014

0.09

0.06 (− 0.11, 0.23)

 Admission quarter

  1st quarter

0.22

Ref

  2nd quarter

0.26

− 0.050 (− 0.080, − 0.020)

  3rd quarter

0.27

− 0.023 (− 0.053, 0.0058)

  4th quarter

0.25

0.018 (− 0.012, 0.05)

Weekend admission status

  Monday–Friday

0.68

Ref

  Saturday–Sunday

0.32

0.13 (0.11, 0.15)

Hospital characteristics

 Hospital region

  Northeast

0.19

Ref

  Midwest

0.22

0.22 (0.18, 0.25)

  South

0.36

0.31 (0.28, 0.34)

  West

0.22

0.11 (0.08, 0.14)

 Hospital control

  Government or private

0.56

Ref

  Government, non-federal

0.04

0.17 (1.11, 1.24)

  Private, not-for-profit

0.15

0.07 (0.02, 0.12)

  Private, investor-owned

0.04

0.09 (0.03, 0.16)

  Private

0.01

0.087 (− 0.060, 0.24)

  Unknown

0.20

− 0.09 (− 0.26, 0.075)

 Location and teaching status

  Rural

0.04

Ref

  Urban—non-teaching

0.22

0.41 (0.33, .49)

  Urban—teaching

0.73

0.59 (0.51, 0.68)

 Hospital bed size

  Small

0.05

Ref

  Medium

0.20

0.26 (0.21, 0.32)

  Large

0.75

0.34 (0.29, 0.40)

  1. CI Confidence interval, RRR relative risk ratio.