Table 4.
The exposure, intervention and outcome of the included intervention studies.
| Ref. | Exposure | Applied Intervention | Outcome | Psychological Measure |
|---|---|---|---|---|
| [37] | 25(OH)cholecalciferol level in blood | Vitamin D supplementation (100 µg vs. 175 µg per day) for 3 months | Health-Related Quality of Life | PROMIS pediatric short forms: depressive symptoms, fatigue, pain, mobility, peer relationships, and upper-extremity function |
| [41] | Daily vitamin D intake (Vit D-Food record (FR)) 25(OH)cholecalciferol level in blood |
Vitamin D supplementation (25 µg per day vs. placebo) for 3 months | Mental health | Strengths and Difficulties Questionnaire—Teacher Version (SDQT), Strengths and Difficulties Questionnaire—Parent Version (SDQP) |
| [42] | 25(OH)cholecalciferol level in blood | Vitamin D supplementation (1250 µg once a week) for 9 weeks in intervention phase | Depressive symptoms Aggressive disorder |
Beck Depression Inventory—Persian version (BDI Persian) Buss-Perry Aggression Questionnaire—Persian version (BPAQ) |
| [43] | 25(OH)cholecalciferol level in blood | Vitamin D supplementation (38 µg per day) vs. control for 3 months | Self-perception of mental health | Youth Self-report version of the Child Behavior Checklist (YSR-CBCL) |
| [44] | 25(OH)cholecalciferol level in blood | Ergocalciferol supplementation, depending on the vitamin D status (125 µg per day for patients of 25(OH)D concentration of 50–72.5 nmol/L vs. 1250 µg per week for < 50 nmol/L) for 3 months | Sleep patterns and sleep problems | Children’s Sleep Habits Questionnaire (CSHQ) |
| [45] | 25(OH)cholecalciferol level in blood | Vitamin D supplementation (50 µg per day) for 2 months | Mood Depression Suicidal incident |
Young Mania Rating Scale (YMRS) Children’s Depression Rating Scale (CDRS) Columbia-Suicide Severity Rating Scale (CSSR-S) |
| [46] | 25(OH)cholecalciferol level in blood | Vitamin D supplementation depending on the status (for patients of 25(OH)D <60 nmol/L): 100 µg per day for 1 month followed by 50 µg per day for 2 months | Well-being Mood |
WHO-5 Well-being scale Mood and Feelings Questionnaire—Short Version (MFQ-S) |