Table 4

Secondary outcomes

Outcome	Estimated marginal means (SE)		Estimated mean difference
Time point	CS-PIM	ST-PIM	B	CI*	p Value†
Usefulness of information (USE)
T₁	66.39 (1.67)	61.98 (1.73)	4.41	0.47 to ∞	0.03
T₂	63.89 (1.70)	60.43 (1.79)	3.46	−1.39 to 8.31	0.16
T₃	61.58 (1.78)	60.63 (1.85)	0.94	−4.08 to 5.97	0.71
Usefulness—cognitive (USE)
T₁	23.22 (0.59)	22.44 (0.62)	0.78	−0.90 to 2.46	0.36
T₂	21.83 (0.61)	20.95 (0.64)	0.88	−0.85 to 2.61	0.32
T₃	21.26 (0.63)	21.30 (0.66)	−0.04	−1.83 to 1.76	0.97
Usefulness—emotional (USE)
T₁	20.70 (0.64)	18.55 (0.67)	2.15	0.34 to 3.96	0.02
T₂	20.60 (0.66)	18.86 (0.69)	1.73	−0.14 to 3.60	0.07
T₃	19.73 (0.69)	19.12 (0.71)	0.61	−1.33 to 2.55	0.54
Usefulness—behavioural (USE)
T₁	22.46 (0.59)	21.02 (0.61)	1.44	−0.23 to 3.11	0.09
T₂	21.55 (0.61)	20.64 (0.64)	0.92	−0.81 to 2.64	0.30
T₃	20.65 (0.63)	20.24 (0.66)	0.42	1.37 to 2.20	0.65
Symptoms—depression (PHQ-9)
T₁	13.40 (0.82)	13.48 (0.85)	−0.08	−2.40 to 2.24	0.95
T₂	12.51 (0.85)	11.97 (0.86)	0.54	−1.85 to 2.93	0.66
T₃	11.53 (0.88)	12.23 (0.88)	−0.69	−3.14 to 1.75	0.58
Symptoms—back pain (core set)
T₁	4.32 (0.13)	4.16 (0.13)	0.15	−0.20 to 0.51	0.40
T₂	4.18 (0.13)	4.04 (0.14)	0.14	−0.22 to 0.51	0.45
T₃	4.28 (0.13)	4.09 (0.14)	0.19	−0.19 to 0.58	0.32
Quality of life (WHO-5)
T₁	10.32 (0.43)	10.13 (0.45)	0.19	−1.03 to 1.41	0.76
T₂	10.93 (0.44)	11.04 (0.46)	−0.11	−1.36 to 1.13	0.86
T₃	10.92 (0.45)	11.74 (0.47)	−0.82	−2.10 to 0.46	0.21

*Primary outcome: one-sided 95% CI, all other outcomes two-sided 95% CI.
†Primary outcome: one-sided test, all other outcomes two-sided tests.
B, mean difference; CS-PIM, culture-sensitive patient information material; PHQ-9, 9-item version of the Patient Health Questionnaire; SMAS, Stephenson Multigroup Acculturation Scale; ST-PIM, standard translated patient information material; T₁, time point 1 (after consultation); T₂, time point 2 (after 8 weeks); T₃, time point 3 (after 6 months); USE, Usefulness Scale for Patient Information Material; WHO-5, WHO-Five Well-Being Index.