A multicomponent secondary school health promotion intervention and adolescent health: An extension of the SEHER cluster randomised controlled trial in Bihar, India

Autoři: Sachin Shinde aff001;  Helen A. Weiss aff003;  Prachi Khandeparkar aff001;  Bernadette Pereira aff001;  Amit Sharma aff001;  Rajesh Gupta aff001;  David A. Ross aff003;  George Patton aff004;  Vikram Patel aff001
Působiště autorů: Sangath, Porvorim, Goa, India aff001;  Population Council, New Delhi, India aff002;  MRC Tropical Epidemiology Group, London School of Hygiene and Tropical Medicine, London, United Kingdom aff003;  Murdoch Children’s Research Institute, University of Melbourne, Melbourne, Victoria, Australia aff004;  Harvard Medical School, Boston, Massachusetts, United States of America aff005;  Harvard T.H. Chan School of Public Health, Boston, Massachusetts, United States of America aff006
Vyšlo v časopise: A multicomponent secondary school health promotion intervention and adolescent health: An extension of the SEHER cluster randomised controlled trial in Bihar, India. PLoS Med 17(2): e1003021. doi:10.1371/journal.pmed.1003021
Kategorie: Research Article
doi: 10.1371/journal.pmed.1003021



Strengthening Evidence base on scHool-based intErventions for pRomoting adolescent health (SEHER) is a multicomponent, whole-school health promotion intervention delivered by a lay counsellor or a teacher in government-run secondary schools in Bihar, India. The objective of this study is to examine the effects of the intervention after two years of follow-up and to evaluate the consistency of the findings observed over time.

Methods and findings

We conducted a cluster randomised trial in which 75 schools were randomised (1:1:1) to receive the SEHER intervention delivered by a lay counsellor (SEHER Mitra [SM]) or a teacher (Teacher as SEHER Mitra [TSM]), respectively, alongside a standardised, classroom-based life skills Adolescence Education Program (AEP), compared to AEP alone (control group). The trial design was a repeat cross-sectional study. Students enrolled in grade 9 (aged 13–15 years) in the 2015–2016 academic year were exposed to the intervention for two years and the outcome assessment was conducted at three time points─at baseline in June 2015; 8-months follow-up in March 2016, when the students were still in grade 9; and endpoint at 17-months follow-up in December 2016 (when the students were in grade 10), the results of which are presented in this paper. The primary outcome, school climate, was measured with the Beyond Blue School Climate Questionnaire (BBSCQ). Intervention effects were estimated using mixed-effects linear or logistic regression, including a random effect to adjust for within-school clustering, minimisation variables, baseline cluster-level score of the outcome, and sociodemographic characteristics. In total, 15,232 students participated in the 17-month survey. Compared with the control group, the participants in the SM intervention group reported improvements in school climate (adjusted mean difference [aMD] = 7.33; 95% CI: 6.60–8.06; p < 0.001) and most secondary outcomes (depression: aMD = −4.64; 95% CI: −5.83–3.45; p < 0.001; attitude towards gender equity: aMD = 1.02; 95% CI: 0.65–1.40; p < 0.001; frequency of bullying: aMD = −2.77; 95% CI: −3.40 to −2.14; p < 0.001; violence victimisation: odds ratio [OR] = 0.08; 95% CI: 0.04–0.14; p < 0.001; and violence perpetration: OR = 0.16; 95% CI: 0.09–0.29; p < 0.001). There was no evidence of an intervention effect in the TSM group compared with control group. The effects of the lay counsellor–delivered intervention were larger for most outcomes at 17-months follow-up compared with those at 8 months: school climate (effect size [ES; 95% CI] = 2.23 [1.97–2.50] versus 1.88 [1.44–2.32], p < 0.001); depression (ES [95% CI] = −1.19 [−1.56 to −0.82] versus −0.27 [−0.44 to −0.11], p < 0.001); attitude towards gender equity (ES [95% CI] = 0.53 [0.27–0.79] versus 0.23 [0.10–0.36], p < 0.001); bullying (ES [95% CI] = −2.22 [−2.84 to −1.60] versus −0.47 [−0.61 to −0.33], p < 0.001); violence victimisation (OR [95% CI] = 0.08 [0.04–0.14] versus 0.62 [0.46–0.84], p < 0.001); and violence perpetration (OR [95% CI] = 0.16 [0.09–0.29] versus 0.68 [0.48–0.96], p < 0.001), suggesting incremental benefits with an extended intervention. A limitation of the study is that 27% of baseline participants did not complete the 17-month outcome assessment.


The trial showed that the second-year outcomes were similar to the first-year outcomes, with no effect of the teacher-led intervention and larger benefits on school climate and adolescent health accruing from extending lay counsellor–delivered intervention.

Trial registration

ClinicalTrials.gov NCT02907125.

Klíčová slova:

Adolescents – Copulation – India – Questionnaires – Schools – Surveys – Teachers – Health promotion


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PLOS Medicine

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