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Table 3 Effect of the THERAD intervention vs control on patient’s QOL caregiver-reported and self-reported: sensitivity analysis in per protocol population and/or with another mixed linear model method

From: Impact of an educational programme on Alzheimer’s disease patients’ quality of life: results of the randomized controlled trial THERAD

 

Estimated change from baseline

meana (95%CI)

Estimated differences in change from baseline

mean (95%CI)

p value

Estimated change from baseline

meana (95%CI)

Estimated differences in change from baseline

mean (95%CI)

p value

Estimated change from baseline

meana (95%CI)

Estimated differences in change from baseline

mean (95%CI)

p value

Outcome

Intervention

Control

Intervention vs Control

Intervention

Control

Intervention vs Control

Intervention

Control

Intervention vs Control

 

M2–M0

M6–M0

M12–M0

Per-protocol population model 1

QOL patient by caregiver (int: 1 = 72, ctrl: n = 76)

0.71 [− 0.23 to 1.65]

0.10 [− 0.82 to 1.01]

0.61 [− 0.70 to 1.93]

p = 0.3595

0.11 [− 0.72 to 0.94]

− 0.17 [− 0.98 to 0.63]

0.28 [− 0.88 to 1.45]

p = 0.6287

− 0.79 [− 1.96 to 0.38]

− 0.58 [− 1.78 to 0.61]

− 0.21 [− 1.88 to 1.47]

p = 0.8086

QOL patient by patient (int: n = 56, ctrl: n = 53)

0.92 [− 0.30 to 2.14]

− 0.94 [− 2.17 to 0.29]

1.86 [0.13 to 3.60]

p = 0.0356

1.11 [0.11 to 2.11]

− 0.75 [− 1.78 to 0.28]

1.86 [0.42 to 3.31]

p = 0.0118

1.40 [0.14 to 2.66]

− 0.47 [− 1.87 to 0.93]

1.87 [− 0.02 to 3.76]

p = 0.0529

Per-protocol population model 2

QOL patient by caregiver (int: n = 73, ctrl: n = 90)

− 0.18 [− 0.38 to 0.02]

− 0.06 [− 0.26 to 0.15]

− 0.12 [− 0.41 to 0.16]

p = 0.4023

− 0.53 [− 1.14 to 0.07]

− 0.17 [− 0.78 to 0.44]

− 0.36 [− 1.22 to 0.49]

p = 0.4023

− 1.07 [− 2.27 to 0.14]

− 0.34 [− 1.56 to 0.88]

− 0.73 [− 2.45 to 0.99]

p = 0.4023

QOL patient by patient (int: n = 61, ctrl: n = 67)

0.21 [− 0.01 to 0.43]

− 0.06 [− 0.31 to 0.18]

0.28 [− 0.05 to 0.60]

p = 0.0953

0.64 [− 0.02 to 1.29]

− 0.19 [− 0.92 to 0.53]

0.83 [− 0.15 to 1.81]

p = 0.0953

1.27 [− 0.04 to 2.59]

− 0.39 [− 1.84 to 1.06]

1.66 [− 0.29 to 3.62]

p = 0.0953

ITT population model 2

QOL patient by caregiver (int: n = 95, ctrl: n = 90)

− 0.18 [− 0.37 to 0.02]

− 0.06 [− 0.26 to 0.15]

− 0.12 [− 0.40 to 0.16]

p = 0.4005

− 0.53 [− 1.12 to 0.06]

− 0.17 [− 0.78 to 0.44]

− 0.36 [− 1.21 to 0.49]

p = 0.4005

− 1.06 [− 2.24 to 0.12]

− 0.33 [− 1.55 to 0.88]

− 0.72 [− 2.42 to 0.97] p = 0.4005

QOL patient by patient (int: n = 78, ctrl: n = 67)

0.22 [0.00 to 0.43]

− 0.06 [− 0.31 to 0.18]

0.28 [− 0.04 to 0.61]

p = 0.0858

0.65 [0.01 to 1.30]

− 0.19 [− 0.92 to 0.53]

0.85 [− 0.12 to 1.82]

p = 0.0858

1.31 [0.02 to 2.60]

− 0.39 [− 1.84 to 1.06]

1.70 [− 0.24 to 3.63]

p = 0.0858

  1. Model 1: linear mixed model adjusted on baseline data
  2. Model 2: linear mixed model with baseline value included in the dependent variable
  3. a Mean (95%CI): estimated with the mean values at baseline for model 1