Table 2.

Performance of the LMM to estimate the total scores of the SIGH-D, IDS-C, SIGHD-IDSC global dimensions, and each of the SIGHD-IDSC symptom dimensions.

SIGHD-IDSC global and symptom dimensions	Marginal R2 mean (including DASS and PANAS)	Mean RMSE (including DASS and PANAS)	Marginal R2 mean (without DASS and PANAS)	Mean RMSE (without DASS and PANAS)
SIGH-D	0.73 (± 0.01)*	5.30 (± 0.17)	0.20 (± 0.01)*	10.28 (± 0.19)
IDS-C	0.80 (± 0.01)*	9.90 (± 0.32)	0.25 (± 0.01)*	18.58 (± 0.29)
SIGHD-IDSC	0.80 (± 0.01)*	15.1 (± 0.48)	0.24 (± 0.01)	28.33 (± 0.45)
Agitation	0.47 (± 0.01)*	0.99 (± 0.04)	0.22 (± 0.01)	1.83 (± 0.03)
Anxiety (psychic)	0.63 (± 0.01)*	1.70 (± 0.06)	0.21 (± 0.01)*	3.41 (± 0.07)
Anxiety (somatic)	0.57 (± 0.01)*	1.16 (± 0.06)	0.24 (± 0.01)	2.11 (± 0.05)
Guilt	0.57 (± 0.02)*	1.01 (± 0.04)	0.24 (± 0.01)	1.75 (± 0.04)
Hypochrondia	0.40 (± 0.02)	0.27 (± 0.02)	0.30 (± 0.02)	0.47 (± 0.01)
Interpersonal	0.60 (± 0.01)	0.56 (± 0.02)	0.15 (± 0.01)	1.02 (± 0.02)
Mood	0.72 (± 0.01)*	3.04 (± 0.10)	0.23 (± 0.01)*	5.97 (± 0.11)
Retardation	0.40 (± 0.02)*	0.61 (± 0.03)	0.27 (± 0.02)	1.08 (± 0.03)
Sex	0.45 (± 0.02)*	1.01 (± 0.05)	0.20 (± 0.01)	1.94 (± 0.04)
Sleep	0.47 (± 0.02)*	2.34 (± 0.07)	0.29 (± 0.02)	4.43 (± 0.09)
Somatic (general)	0.62 (± 0.02)*	1.88 (± 0.07)	0.31 (± 0.02)	3.51 (± 0.08)
Somatic (gastrointestinal)	0.43 (± 0.02)*	0.71 (± 0.03)	0.18 (± 0.01)	1.50 (± 0.04)
Suicide	0.50 (± 0.01)*	0.32 (± 0.02)	0.28 (± 0.02)	0.57 (± 0.02)
Weight	0.43 (± 0.01)*	0.37 (± 0.02)	0.23 (± 0.01)	0.85 (± 0.03)
Work	0.65 (± 0.01)*	2.02 (± 0.07)	0.26 (± 0.01)	3.92 (± 0.07)

The * represents a statistically significant difference (p < 0.05) between the null model and the best performing LMM models.