Skip to main content

Table 2 Estimated trajectory classes and group-specific growth parameters of health-related quality of life (N = 281)

From: Effects of interventions on trajectories of health-related quality of life among older patients with hip fracture: a prospective randomized controlled trial

Growth parameter

PCS classes

MCS classes

Poor

Moderate

Good

Poor

Moderate

Good

Intercept

3.72***

3.71***

3.83***

3.75***

3.95***

4.11***

Linear slope

0.04***

0.08***

0.11***

-0.010 *

-0.007**

-0.005***

Quadratic slope

-0.002**

-0.004***

-0.006***

   

Group proportion

36.65

34.16

29.18

13.87

29.89

56.23

Alpha0

-21.28

  

-21.14

  

Alpha1

0.26

  

-0.23

  

Alpha2

-0.05

     

Model fit statistics

 BIC (N =1018)

-3545.68

  

-3578.91

  

 BIC (N =281)

-3536.67

  

-3572.48

  

 AIC fit index

-3511.21

  

-3554.29

  

 Log likelihood

-3497.21

  

-3544.29

  
  1. BIC Bayesian information criterion, AIC Akaike’s information criterion, PCS physical component summary score, MCS mental component summary score
  2. Level 1, N = 1018, and Level 2, N = 281
  3. * p < 0.05, ** p < 0.01, *** p < 0.001
Back to article page

BMC Musculoskeletal Disorders

ISSN: 1471-2474

Contact us