Effects over time of parenting interventions to reduce physical and emotional violence against children: a systematic review and meta-analysis

Background

Violence against children affects over one billion children globally. International organisations promote parenting interventions as a main strategy to reduce violence against children. Parenting interventions have therefore been implemented rapidly across the globe. Yet, evidence for their longer-term effects remains unclear. We integrated global evidence to estimate effects over time of parenting interventions to reduce physical and emotional violence against children.

Methods

In this systematic review and meta-analysis, we searched 26 databases and trial registries (14 non-English: Spanish, Chinese, Farsi, Russian, Thai) and conducted an extensive grey literature search up to August 01, 2022. We included randomised controlled trials (RCTs) of parenting interventions based on social learning theory for parents of children aged 2-10 years, without time or context restrictions. We critically appraised studies using Cochrane's Risk of Bias Tool. Data were synthesised using robust variance estimation meta-analyses. This study is registered with PROSPERO, CRD42019141844.

Findings

We screened 44,411 records and included 346 RCTs. Sixty RCTs reported outcomes on physical or emotional violence. Trials were distributed across 22 countries (22% LMICs). Risk of bias was high for various domains. Outcome data ranged from 0 weeks to 2 years after the intervention, and was largely based on parent self-report. Parenting interventions reduced physical and emotional violent parenting behaviours immediately after the intervention (n = 42, k = 59; d = -0.46; 95% CI: -0.59, -0.33), at 1-6 months follow-up (n = 18, k = 31; d = -0.24; 95% CI: -0.37, -0.11) and at 7-24 months follow-up (n = 12, k = 19; d = -0.18; 95% CI: -0.34, -0.02), but effects were smaller over time.

Interpretation

Our findings suggest that parenting interventions can reduce physical and emotional violence against children. Effects are maintained up to 24 months follow-up, but with diminished effect sizes. With global policy interest and imminent importance, research beyond 2 years and how effects can be better sustained over time is urgently needed.

Funding

Student scholarship from the Economic Social Research Council, Clarendon, and Wolfson Isaiah Berlin Fund.

Promoting Positive Relationship Between Parents and Grandparents: A Randomized Controlled Trial of Group Triple P Plus Compassion in Vietnam

In Vietnamese culture, grandparents are significantly involved in the upbringing of grandchildren. This involvement of grandparents entails lots of ambiguities and challenges. Boundaries between parents and grandparents are often unclear, and communication can be restricted due to power differentials, leading to inconsistent discipline. This study seeks to evaluate the efficacy of the Group Triple P-Positive Parenting Program plus Building Coparenting Alliance-a compassion-focused module to promote the parent-grandparents relationship. One hundred Vietnamese parents whose parents or parent in-laws provided care for their children were randomly assigned to either an intervention condition (n = 50) or a waitlist control condition (n = 50). Both groups were assessed at three time-points (pre-intervention, post-intervention, and 6-month follow-up). The short-term intervention effects were found across domains, including co-parenting conflict, parents' self-compassion, dysfunctional parenting, parenting self-efficacy, parental adjustment, child behavioral problems and child prosocial behaviors. Intervention effects on co-parenting conflict, parenting behaviors, and the child's prosocial behaviors were maintained at a 6-month follow-up. This study demonstrates the efficacy of Triple P plus compassion in promoting co-parenting relationships between parents and grandparents, enhancing parenting practice and child outcomes in Vietnamese families.

Promoting positive parenting and mental wellbeing in Hong Kong Chinese parents: A pilot cluster randomised controlled trial

Objective

Effective and brief positive parenting interventions could be adopted widely, but evidence is limited. We aimed to evaluate the effectiveness of a positive parenting programme in Hong Kong Chinese parents.

Methods

We conducted a pilot cluster randomised controlled trial in 2017 in 144 Hong Kong Chinese parents (84.7% women, mean age 42.5 [SD 5.87] years) of school-age children (mean age 10.9 [2.8] years) in 4 family service centres (clusters). The intervention included two 2-hour interactive talks (4 hours in total). The contents covered skills of giving praise, showing appreciation and playing enjoyable family games. The control group was offered the intervention after all the data were collected. Praise, appreciation and enjoyment related behaviours were measured as primary outcomes at baseline, 1 month and 3 months. The secondary outcomes were subjective happiness, wellbeing, personal health and happiness, family health, family happiness and harmony, and family relationship. After the completion of all assessments, five focus group discussions with the parents and four individual in-depth interviews with community service providers were conducted to explore their experiences.

Results

Compared with the control group (n = 69), the intervention group (n = 75) showed greater positive changes in appreciation and enjoyment at 3 months with small effect sizes (d = 0.42 and 0.32, respectively), and greater improvements in the secondary outcomes at 3 months with small effect sizes (d: 0.29–0.48). In the focus groups, the parents reported more praise to their children, better temper control, more focus on their children’s strengths and better family relationships. According to the service providers, most of the parents enjoyed the activities.

Conclusions

The brief intervention in community settings with the engagement of community service providers has shown preliminary effectiveness in promoting positive parenting and mental wellbeing of Hong Kong Chinese parents.

Trial registration

The authors confirm that all ongoing and related trials for this intervention are registered. The study reported in this manuscript is registered as clinical trial at clinicaltrials.gov: NCT03282071. https://clinicaltrials.gov/ct2/show/NCT03282071.

The Effectiveness of Group Triple P for Chinese Immigrant Parents of School Age Children Living in New Zealand

The study was a randomised controlled trial evaluating the effectiveness of the Group Triple P Program for Chinese immigrant parents living in New Zealand. Sixty-seven Chinese immigrant parents of a 5- to 9-year-old child with disruptive behaviour problems were randomly allocated to either an intervention or a waitlist group. Parents completed measures of child adjustment problems, general parenting practices, parenting practices in children's academic lives, parental adjustment, parental teamwork, and family relationships at pre-, post-, and 4-month follow-up. Intervention group ratings of programme satisfaction were collected following programme completion. Significant short-term intervention effects were found for improvements in child behaviour, parenting practices, parental teamwork, and parenting in the child academic context. All intervention effects, except for parental teamwork, were maintained at 4-month follow-up. There were no significant intervention effects for parental adjustment, however, medium effect sizes were found at post-intervention and follow-up. A high level of programme satisfaction was reported.

Authoritative parenting stimulates academic achievement, also partly via self-efficacy and intention towards getting good grades

Background

The aim of this prospective study is to examine how parenting style relates to academic achievement of Lebanese adolescents and test the mediating effect of self-efficacy and intention towards getting good grades. Potential moderation by demographic factors (age, gender, school type, religion and parents’ education) was also examined.

Methods

Students (n = 345) from private and public schools in Mount Lebanon and Beirut area, aged between 15 and 18, participated in a two-wave longitudinal study and completed a self-administered questionnaire based on the I-Change Model assessing socio-demographics (age, gender, school type, parents’ education, family structure, religion), socio-cognitive factors (attitude, social norms, self-efficacy, intention), parenting styles and academic achievement. Adolescent were surveyed at two time points, six months apart. A multiple linear regression was carried out to identify baseline factors independently associated with academic achievement 6 months later. Moderation was examined using Hayes’s SPSS macro PROCESS. A serial mediation model was employed to test for the sequential mediating effect of self-efficacy and intention between parenting style and academic achievement.

Results

Authoritative parenting was prospectively associated with better academic achievement and higher self-efficacy and intention at 6 months follow up. In addition, self-efficacy and intention towards getting good grades were found to mediate the relationship of parenting style to academic achievement. Adolescents who perceive their parents as authoritative are more likely to develop high efficacy beliefs and higher intention and subsequently are more likely to achieve better in school compared to peers of neglectful parents. Socio-demographics did not moderate the effect of parenting on academic achievement.

Conclusion

Authoritative parenting influenced both directly and indirectly the academic achievement of their children. Interventions aiming at improving academic performance of adolescents should also encompass positive parenting style strategies.

Psychosocial interventions for disruptive behaviour problems in children in low- and middle-income countries: a systematic review and meta-analysis

BACKGROUND

Most of the evidence for psychosocial interventions for disruptive behaviour problems comes from Western, high-income countries. The transferability of this evidence to culturally diverse, low-resource settings with few mental health specialists is unknown.

METHODS

We conducted a systematic review with random-effects meta-analysis of randomized controlled trials examining the effects of psychosocial interventions on reducing behaviour problems among children (under 18) living in low- and middle-income countries (LMIC).

RESULTS

Twenty-six randomized controlled trials (representing 28 psychosocial interventions), evaluating 4,441 subjects, met selection criteria. Fifteen (54%) prevention interventions targeted general or at-risk populations, whereas 13 (46%) treatment interventions targeted children selected for elevated behaviour problems. Most interventions were delivered in group settings (96%) and half (50%) were administered by non-specialist providers. The overall effect (standardized mean difference, SMD) of prevention studies was -0.25 (95% confidence interval (CI): -0.41 to -0.09; I² : 78%) and of treatment studies was -0.56 (95% CI: -0.51 to -0.24; I² : 74%). Subgroup analyses demonstrated effectiveness for child-focused (SMD: -0.35; 95% CI: -0.57 to -0.14) and behavioural parenting interventions (SMD: -0.43; 95% CI: -0.66 to -0.20), and that interventions were effective across age ranges.

CONCLUSIONS

Our meta-analysis supports the use of psychosocial interventions as a feasible and effective way to reduce disruptive behaviour problems among children in LMIC. Our study provides strong evidence for child-focused and behavioural parenting interventions, interventions across age ranges and interventions delivered in groups. Additional research is needed on training and supervision of non-specialists and on implementation of effective interventions in LMIC settings.