Table 3 Parameter estimates at each time point for each group and their interaction effect

Disease activity

F _{1, 114.7} = 0.6, p = 0.46

F _{1, 124.2} = 0.1, p = 0.73

F 1_{, 114.7} = 0.1, p = 0.78

Functional disability

F _{2, 183.0} = 0.4, p = 0.71

F _{1, 126.4} = 0.4, p = 0.55

F _{2, 183.0} = 0.5, p = 0.61

Quality of life: Overall score

F _{2, 168.6} = 0.5, p = 0.58

F _{1, 127.4} = 0.2, p = 0.62

F _{2, 168.6} = 1.0, p = 0.37

Quality of life: Activities of daily living

F _{2, 188.6} = 1.8, p = 0.16

F _{1, 125.4} = 0.1, p = 0.74

F _{2, 188.6} = 0.1, p = 0.91

Quality of life: Emotional wellbeing

F _{2, 151.3} = 0.1, p = 0.95

F _{1, 128.9} < 0.1, p = 0.88

F _{2, 151.3} = 1.1, p = 0.33

Quality of life:: Pain

F _{2, 195.7} = 0.9, p = 0.41

F _{1, 128.3} = 0.2, p = 0.68

F _{2, 195.7} = 0.9, p = 0.41

Quality of life: Social/family life

F _{2, 171.5} = 0.9, p = 0.41

F _{1, 128.4} = 0.3, p = 0.60

F _{2, 171.5} = 1.1,

p = 0.34

Quality of life: Stigma

F _{2, 166.9} = 1.3, p = 0.29

F _{1, 128.3} = 0.3, p = 0.58

F _{2, 166.9} = 1.0, p = 0.37

Satisfaction with care

F _{2, 203.0} = 5.9, p = 0.03

F _{1, 113.1} = 0.5,

p = 0.83

F _{2, 203.0} = 1.4,

p = 0.25

Anxiety

F _{2, 142.3} = 1.6, p = 0.20

F _{1, 130.0} = 0.1, p = 0.75

F _{2, 142.3} = 1.6, p = 0.02

Depression

F _{2, 165.8} = 1.4, p = 0.26

F _{1, 130.6} = 0.5,

p = 0.50

F _{2, 165.8} = 1.2,

p = 0.31

Confidence in the service

F _{2, 205.1} = 1.6, p = 0.20

F _{1, 116.3} = 2.9,

p = 0.09

F _{2, 205.1} = 0.02,

p = 0.98