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Table 5 PedsQl Total score at 1, 4 and 12 months using Generalized Estimating Equation

From: A longitudinal study on quality of life after injury in children

  Time only Model (95 % CI) Crude Estimatea (95 % CI) Adjusted Estimateb (95 % CI)
Intercept 81.47 (79.37, 83.56)   34.53 (17.88, 51.17)
Time in months 0.99 (0.79, 1.19)   0.54 (–1.37, 2.46)
Baseline HRQoL   0.52 (0.24, 0.79) 0.53 (0.29, 0.77)
Time*Baseline   0.01 (–0.01, 0.03) 0.01 (–0.01, 0.03)
Hospitalization Status   13.65 (8.38, 18.93) 11.95 (5.59, 18.30)
Time*Hospitalization (ref = hosp)   –1.17 (–1.67, –0.68) –0.93 (–1.58, –0.29)
Age (yrs)   –1.03 (–1.46, –0.59) –0.93 (–1.32, –0.54)
Time*Age   0.07 (0.03, 0.12) 0.07 (0.04, 0.11)
Sex (ref = Female)   –0.41 (–5.06, 4.25) 2.63 (–1.25, 6.5)
Time*Sex   –0.10 (–0.53, 0.33) –0.29 (–0.67, 0.10)
PaedCTAS 1&2   Reference  
PaedCTAS 3   7.51 (0.54, 14.49) –0.59 (–8.33, 7.16)
PaedCTAS 4&5   11.87 (6.24, 17.51) 2.29 (–4.56, 9.16)
Time*CTAS3   –0.61 (–1.25, 0.02) –0.02 (–0.73, 0.69)
Time*PaedCTAS 4&5   –1.07 (–1.58, –056) –0.36 (–1.03, 0.32)
  1. a“Crude” models include the covariate, time and the interaction between time and the covariate
  2. bAdjusted for all other variables in table including interaction terms