Table 5.

Simple effects of time.

Variables				MDa (SE)		df		P value		Generalized η2
Depressive symptoms
	Group 1b										0.162
		T2c-T1d	−4.451 (0.605)		50		<.001
		T3e-T1	−1.490 (0.572)		50		.02
		T4f-T1	−3.510 (0.485)		50		<.001
		T3-T2	2.961 (0.710)		50		<.001
		T4-T2	0.941 (0.580)		50		.38
		T4-T3	−2.020 (0.430)		50		<.001
	Group 2g										0.078
		T2-T1	−3.688 (0.662)		47		<.001
		T3-T1	−1.667 (0.610)		47		.04
		T4-T1	−2.167 (0.576)		47		.003
		T3-T2	2.021 (0.563)		47		.004
		T4-T2	1.521 (0.667)		47		.03
		T4-T3	−0.500 (0.490)		47		.74
	Group 3h										0.034
		T2-T1	−1.375 (0.579)		47		.02
		T3-T1	−1.438 (0.754)		47		.06
		T4-T1	−2.313 (0.620)		47		<.001
		T3-T2	−0.063 (0.405)		47		.88
		T4-T2	−0.938 (0.360)		47		.01
		T4-T3	−0.875 (0.463)		47		.07
Anxiety symptoms
	Group 1										0.215
		T2-T1	−3.588 (0.529)		50		<.001
		T3-T1	−2.353 (0.556)		50		<.001
		T4-T1	−3.863 (0.482)		50		<.001
		T3-T2	1.235 (0.364)		50		.01
		T4-T2	−0.275 (0.291)		50		.78
		T4-T3	−1.510 (0.389)		50		.002
	Group 2										0.081
		T2-T1	−3.063 (0.793)		47		<.001
		T3-T1	−1.417 (0.646)		47		.03
		T4-T1	−3.021 (0.527)		47		<.001
		T3-T2	1.646 (0.661)		47		.02
		T4-T2	0.042 (0.753)		47		.96
		T4-T3	−1.604 (0.584)		47		.01
	Group 3										0.053
		T2-T1	−0.125 (0.626)		47		.84
		T3-T1	−1.458 (0.607)		47		.02
		T4-T1	−2.292 (0.555)		47		<.001
		T3-T2	−1.333 (0.461)		47		.01
		T4-T2	−2.167 (0.481)		47		<.001
		T4-T3	−0.833 (0.490)		47		.10
Fatigue
	Group 1										0.124
		T2-T1	−3.137 (0.465)		50		<.001
		T3-T1	−2.098 (0.628)		50		.01
		T4-T1	−3.392 (0.505)		50		<.001
		T3-T2	1.039 (0.480)		50		.04
		T4-T2	−0.255 (0.485)		50		.95
		T4-T3	−1.294 (0.430)		50		.02
	Group 2										0.095
		T2-T1	−3.125 (0.444)		47		<.001
		T3-T1	−1.896 (0.532)		47		.01
		T4-T1	−2.417 (0.524)		47		<.001
		T3-T2	1.229 (0.440)		47		.04
		T4-T2	0.708 (0.535)		47		.55
		T4-T3	−0.521 (0.541)		47		.77
	Group 3										0.061
		T2-T1	−0.729 (0.526)		47		.17
		T3-T1	−2.062 (0.511)		47		<.001
		T4-T1	−2.292 (0.456)		47		<.001
		T3-T2	−1.333 (0.587)		47		.03
		T4-T2	−1.562 (0.549)		47		.01
		T4-T3	−0.229 (0.537)		47		.67
Mindfulness
	Group 1										0.244
		T2-T1	−7.176 (0.784)		50		<.001
		T3-T1	−1.843 (1.140)		50		.38
		T4-T1	−2.745 (0.911)		50		.02
		T3-T2	5.333 (0.888)		50		<.001
		T4-T2	4.431 (0.851)		50		<.001
		T4-T3	−0.902 (0.790)		50		.67
	Group 2										0.098
		T2-T1	−3.729 (0.802)		47		<.001
		T3-T1	−0.479 (0.887)		47		.59
		T4-T1	−1.729 (0.837)		47		.04
		T3-T2	3.250 (0.777)		47		<.001
		T4-T2	2.000 (0.727)		47		.01
		T4-T3	−1.250 (0.635)		47		.05
	Group 3										0.003
		T2-T1	−0.375 (0.919)		47		.98
		T3-T1	0.271 (1.049)		47		.99
		T4-T1	−0.375 (0.950)		47		.98
		T3-T2	0.646 (0.736)		47		.82
		T4-T2	<0.001 (0.678)		47		.99
		T4-T3	−0.646 (0.908)		47		.89

^aMD: mean difference.

^bGroup 1: neurofeedback-assisted online mindfulness intervention group.

^cT2: postintervention.

^dT1: baseline.

^eT3: 1-month follow-up.

^fT4: 3-month follow-up.

^gGroup 2: conventional online mindfulness intervention group.

^hGroup 3: control group.