. 2020 Nov 27;20:1094. doi: 10.1186/s12913-020-05948-2

Table 4.

Model results and fit between outcomes and adjusted and unadjusted models

Outcome	AIC	Variance	R²_M	R²_C	Predictor	Contrast	β	95% CI
Unadjusted models
Confidence n of obs. = 206	673	$σ_{u}^{2}$ = 0.72	47%	69%	Time	T2 v T1	2.43	2.08–2.79
		$σ_{e}^{2}$ = 1.03				T3 v T1	2.81	2.42–3.21
		ICC = 0.41				T3 v T1	2.75	2.31–3.19
Knowledge n of obs. = 127	374	$σ_{u}^{2}$ = 0.27	23%	42%	Time	T2 v T1	1.14	0.82–1.46
		$σ_{e}^{2}$ = 0.83
		ICC = 0.24
Resilience n of obs. = 144	788	$σ_{u}^{2}$ = 15	8%	75%	Time	T3 v T1	2.77	1.82–3.73
		$σ_{e}^{2}$ = 5.73				T4 v T1	2.54	1.45–3.62
		ICC = 0.72
Models adjusted for age/gender
Confidence adj. n of obs. = 203	663	$σ_{u}^{2}$ = 0.69	48%	69%	Time	T2 v T1	2.41	2.06–2.77
		$σ_{e}^{2}$ = 1.03				T3 v T1	2.79	2.40–3.19
		ICC = 0.40				T4 v T1	2.72	2.27–3.16
					Age	–	0.01	−0.01-0.04
					Gender	M v F	−0.52	−1.20-0.17
Knowledge adj. n of obs. = 124	365	$σ_{u}^{2}$ = 0.26	23%	41%	Time	T2 v T1	1.09	0.77–1.41
		$σ_{e}^{2}$ = 0.81			Age	–	0.01	−0.01-0.03
		ICC = 0.24			Gender	M v F	0.00	−0.56-0.55
Resilience adj. n of obs. = 142	775	$σ_{u}^{2}$ = 14.2	14%	75%	Time	T3 v T1	2.76	1.81–3.71
		$σ_{e}^{2}$ = 5.71				T4 v T1	2.57	1.49–3.66
		ICC = 0.71			Age	–	−0.09	−0.18-0.00
					Gender	M vs. F	2.20	−0.60-5.01

Notes. Likelihood ratio tests for all random effects p < .001