BackgroundThere are few published controlled trials examining the efficacy of Internet-based treatment for postnatal depression (PND) and none that assess diagnostic status (clinical remission) as the primary outcome. This is despite the need to improve treatment uptake and accessibility because fewer than 50% of postnatally depressed women seek help, even when identified as depressed.ObjectiveIn a randomized controlled trial (RCT), we aimed to test the efficacy of a 6-session Internet intervention (the MumMoodBooster program, previously evaluated in a feasibility trial) in a sample of postnatal women with a clinical diagnosis of depression. The MumMoodBooster program is a cognitive behavioral therapy (CBT) intervention, is highly interactive, includes a partner website, and was supported by low-intensity telephone coaching.MethodsThis was a parallel 2-group RCT (N=43) comparing the Internet CBT treatment (n=21) to treatment as usual (n=22). At baseline and at 12 weeks after enrollment, women’s diagnostic status was assessed by telephone with the Standardized Clinical Interview for DSM-IV (SCID-IV) and symptom severity with the Beck Depression Inventory (BDI-II). Depression symptoms were measured repeatedly throughout the study period with the Patient Health Questionnaire (PHQ-9).ResultsAt the end of the study, 79% (15/19) of women who received the Internet CBT treatment no longer met diagnostic criteria for depression on the SCID-IV (these outcome data were missing for 2 intervention participants). This contrasted with only 18% (4/22) remission in the treatment as usual condition. Depression scores on the BDI-II showed a large effect favoring the intervention group (d=.83, 95% CI 0.20-1.45). Small to medium effects were found on the PHQ-9 and on measures of anxiety and stress. Adherence to the program was very good with 86% (18/21) of users completing all sessions; satisfaction with the program was rated 3.1 out of 4 on average.ConclusionsOur results suggest that our Internet CBT program, MumMoodBooster, is an effective treatment option for women clinically diagnosed with PND. This is one of only two controlled evaluations of specialized online psychological treatment among women clinically diagnosed with PND. MumMoodBooster appears to be a feasible, effective treatment option, which is potentially accessible to large numbers of women in metropolitan, rural, and remote areas. Future work might be focused profitably on establishing comparability with face-to-face treatments and purely self-guided delivery. We have commenced a larger RCT comparing MumMoodBooster with face-to-face CBT.Trial RegistrationAustralian and New Zealand Clinical Trials Registry (ANZCTR): ACTRN12613000113752; https://www.anzctr.org.au/Trial/Registration/TrialReview.aspx?id=363561 (Archived by WebCite® at http://www.webcitation.org/6f64kuyLf).

Substantial evidence links antenatal depression, anxiety and stress with negative effects on foetal development, resulting in enduring problems in child development. Despite this, there is a paucity of research on intervention programmes designed to address depression and anxiety, and none that include infant outcomes. We aimed to evaluate the efficacy of a brief treatment for maternal depression and anxiety in pregnancy in a sample of women with a diagnosed depressive disorder. We developed a cognitive behavioural therapy treatment for antenatal depression and anxiety and evaluated it in a feasibility trial. This was followed by a pilot randomised controlled trial (RCT) which collected data on the efficacy of the brief intervention and follow-up data on infants. The feasibility study (n = 25) yielded promising results for adherence, acceptability and improvements in depression and anxiety (Beck Depression Inventory and Beck Anxiety Inventory). The RCT (n = 54) again showed excellent adherence and acceptability and supported the efficacy of the treatment. Strong reductions in anxiety were observed during pregnancy, and improvements in depression were maintained at 9 months representing a moderately large effect size. Nine-month infant outcomes showed several medium to large effects favouring the intervention in domains including problem solving, self-regulation and stress reactivity, which were independent of maternal postnatal mood. Treating severe depression and anxiety during pregnancy with a brief cognitive behavioural therapy (CBT) intervention appears feasible and worthwhile. To reliably detect clinically meaningful effects on infant outcomes, larger RCTs are likely to be required.

Social support before and after childbirth is a possible protective factor for perinatal depression. Currently, there is a lack of longitudinal studies beyond the first year postpartum exploring the relationship of social support with depression and anxiety. Social support is also a possible protective factor for adverse child development, which is a known consequence of perinatal depression. The present study followed up a cohort of depressed women (n = 54) from a randomised controlled trial of psychological treatment for antenatal depression. We examined the trajectory of the relationships between perceived social support (Social Provisions Scale), depression (Beck Depression Inventory), and anxiety (Beck Anxiety Inventory) twice in pregnancy and twice postpartum up to two years. The influence of social support on child development and parenting-related stress was also explored. Two aspects of social support, Reassurance of Worth and Reliable Alliance, were strongly related to perinatal depression and anxiety, particularly when predicting symptoms in late pregnancy. However, the effect of postnatal depression on child development at 9 and 24 months post-birth was not mediated by social support. These results suggest the importance of adjusting current interventions for depressed perinatal women to focus on social support in late pregnancy and the first six months postpartum.

Symptoms of depression negatively impact on mother-infant relationships and child outcomes. We evaluated a novel, 10-session mother-infant therapeutic playgroup-Community HUGS (CHUGS)-which combines cognitive and experiential components through psychoeducation, play, music, and movement. Participants were mothers experiencing a range of postnatal mental health difficulties, including depression, with infants ≤12 months of age. However, the aim was not to treat maternal depression but to ameliorate associated problems in the mother-infant interaction. In the feasibility study, all participants received CHUGS. In the pilot randomized controlled trial (RCT), participants were randomized between intervention and a wait-list. Outcomes were the Parenting Stress Index (PSI; R.R. Abidin, 1995), Parenting Sense of Competency Scale (Self-Efficacy subscale; J. Gibaud-Wallston & L.P. Wandersman, 1978), and the Depression, Anxiety, Stress Scales (P.F. Lovibond & S.H. Lovibond, 1995). In the feasibility study (n = 74), PSI scores dropped on all subscales, all ps < .01. Depression, p < .001, anxiety, p = .01, stress, p = .01, and self-efficacy, p < .001, all showed improvements, as did observer-rated mother-infant interactions, p < .001. In the RCT, depression, p < .001, anxiety, p = .005, and stress, p < .001, symptoms were significantly reduced for intervention participants (n = 16), as compared to wait-list participants (n = 15). The CHUGS program had high participant satisfaction and produced improvements in self-efficacy, depression, anxiety, stress, and mother-infant interactions that supported the program's acceptability and the utility of further rollout.

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