The mean difference in EPDS scores between the control group and the intervention group at end point was −3.981 but no statistically significant difference was observed. Combined analysis of inhalation aromatherapy and massage aromatherapy showed statistically significant difference with a mean difference of −4.8.
Depression-dejection subscale scores before and after test were 2.7 and 1.2 in the comparison group and 1.6 and 0.6 in the intervention group, respectively. No statistically significant difference was observed.
(i) Nonpharmacological methods for pain relief of labor including showering, being in upright position, aromatherapy, and soft music without words
Depression grades (0–30) before and after delivery were 6.3 and 8.8 in the no intervention group and 6.1 and 7.8 in the intervention group, respectively. No statistically significant difference was observed.
The scores in the MADRS at baseline and end point were 19.8 and 21.1 in the control group and 30 and 18.1 in the treatment group. Statistically significant difference was observed between the test and control group.
(i) Aromatherapy massage (ii) Massage with inert carrier oil
The median change in HADS at baseline and end point was 0.5 in the no intervention group, 0 in the aromatherapy massage group, and −1.5 in the massage group. No statistically significant difference among the groups.
(i) Usual supportive care and aromatherapy massage
The scores using CES-D at baseline and end point were 26.0 and 4.6 in the active control group and 25.9 and 6.2 in the intervention group, respectively. No statistically significant difference observed between the 2 groups.
The mean difference in psychological symptoms (including depressive mood) was −0.379 in the no intervention group (no statistically significant difference), −3.49 in the aromatherapy massage group (statistically significant difference), and −1.20 in the massage group (statistically significant difference).
The BDI score before and after test was 8.6 and 8.5 in the control group and 10.8 and 6.5 in the intervention group (statistically significant difference).
In this study, both aromatherapy modalities were tested, inhalation aromatherapy and aromatherapy massage. Therefore, the study was included in both categories in the table. CES-D, Center of Epidemiological Studies Depression (self-reported depression); BDI, Beck Depression Inventory; DSM-IV, modified Diagnostic and Statistical Manual of Mental Disorder criteria; EPDS, Edinburgh Postnatal Depression Scale; HADS, Hospital Anxiety and Depression Scale; MADRS, Montgomery-Asberg Depression Rating Scale; MRS, Menopause Rating Scale; POMS, Profile of Mood States; TMD, Total Mood Disturbance; TMS, Total Mood Score (shortened version of the profile of mood states).
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