Table A4.
Statistically insignificant outcomes in the included studies using Oxford criteria for diagnosing CFS.
| Intervention Type | First Author, Year | Outcome (Assessed by) | Comparison Groups | Comparison Time Point | p-Value | |
|---|---|---|---|---|---|---|
| Mindfulness and cognitive-based | Surawy, Ch., 2005 [29] | Study 1 (RCT) | Depression (HADS) | MBSR/MBCT compared to controls | Post treatment (8 weeks) | 0.28 |
| Fatigue score (ChFS) | MBSR/MBCT compared to controls | Post treatment (8 weeks) | 0.08 | |||
| Study 2 (single-arm experimental study) | Depression (HADS) | MBCT/MBSR (pre-post) | Post treatment (8 weeks) | 0.16 | ||
| Fatigue score (ChFS) | MBCT/MBSR (pre-post) | Post treatment (8 weeks) | 0.06 | |||
| Quality of life: physical functioning (SF-36) | MBCT/MBSR (pre-post) | Post treatment (8 weeks) | 0.69 | |||
| Rimes, K., 2013 [30] | Mindfulness (5 facet mindfulness questionnaire) | MBCT compared to waitlist | Post treatment (8 weeks) | 0.067 | ||
| Catastrophizing (Self-reporting scale) | MBCT compared to waitlist | Post follow-up (2 months) | 0.152 | |||
| All-or-nothing behavior (Self-reporting scale) | MBCT compared to waitlist | Post follow-up (2 months) | 0.089 | |||
| Depression (HADS) | MBCT compared to waitlist | Post follow-up (2 months) | 0.153 | |||
| Anxiety (HADS) | MBCT compared to waitlist | Post treatment (8 weeks) | 0.173 | |||
| Anxiety (HADS) | MBCT compared to waitlist | Post follow-up (2 months) | 0.296 | |||
| Quality of life: physical functioning (SF-36) | MBCT compared to waitlist | Post treatment (8 weeks) | 0.124 | |||
| Quality of life: physical functioning (SF-36) | MBCT compared to waitlist | Post follow-up (2 months) | 0.345 | |||
| Impairment (The work and social adjustment scale) | MBCT compared to waitlist | Post follow-up (2 months) | 0.054 | |||
| Fatigue (ChFS) | MBCT (pre-post) | Between 2- and 6-month follow-up | 0.089 | |||
| Depression (HADS) | MBCT (pre-post) | Between 2- and 6-month follow-up | 0.069 | |||
| Catastrophizing (Self-reporting scale) | MBCT (pre-post) | Between 2- and 6-month follow-up | 0.063 | |||
| All-or-nothing behavior (Self-reporting scale) | MBCT (pre-post) | Between 2- and 6-month follow-up | 0.082 | |||
| Self-Compassion (Self-reporting scale) | MBCT (pre-post) | Between 2- and 6-month follow-up | 0.110 | |||
| Anxiety (HADS) | MBCT (pre-post) | Between 2- and 6-month follow-up | 0.211 | |||
| Quality of life: physical functioning (SF-36) | MBCT (pre-post) | Between 2- and 6-month follow-up | 0.164 | |||
| Beliefs about Emotions (Self-reporting scale) | MBCT (pre-post) | Between 2- and 6-month follow-up | 0.84 | |||
| Quality of life: physical functioning (SF-36) | MBCT (pre-post) | Post follow-up (6 months) | 0.051 | |||
| Depression (HADS) | MBCT (pre-post) | Post follow-up (6 months) | 0.051 | |||
| Anxiety (HADS) | MBCT (pre-post) | Post follow-up (6 months) | 0.206 | |||
ChFS: Chalder’s Fatigue Scale, HADS: Hospital Anxiety and Depression Scale, MBSR: Mindfulness-based stress reduction, MBCT: Mindfulness-based cognitive therapy, SF-36: 36- Item Short-Form Health Survey.