Sensory integration therapy for children with autism and sensory processing difficulties: the SenITA RCT

BACKGROUND

Carers report unmet need for occupational therapy services addressing sensory difficulties in autism, yet insufficient evidence exists to recommend a therapeutic approach.

OBJECTIVES

Our aim was to determine the clinical effectiveness and cost-effectiveness of sensory integration therapy for children with autism and sensory difficulties across behavioural, functional and quality-of-life outcomes.

DESIGN

We carried out a parallel-group randomised controlled trial, incorporating an internal pilot and a process evaluation. Randomisation utilised random permuted blocks.

SETTING AND PARTICIPANTS

Children were recruited via services and self-referral in Wales and England. Inclusion criteria were having an autism diagnosis, being in mainstream primary education and having definite/probable sensory processing difficulties. Exclusion criteria were having current/previous sensory integration therapy and current applied behaviour analysis therapy.

INTERVENTION

The intervention was manualised sensory integration therapy delivered over 26 weeks and the comparator was usual care.

OUTCOMES

The primary outcome was problem behaviours (determined using the Aberrant Behavior Checklist), including irritability/agitation, at 6 months. Secondary outcomes were adaptive behaviour, functioning and socialisation (using the Vineland Adaptive Behavior Scales); carer stress (measured using the Autism Parenting Stress Index); quality of life (measured using the EuroQol-5 Dimensions and Carer Quality of Life); functional change (according to the Canadian Occupational Performance Measure); sensory processing (determined using the Sensory Processing Measure™ at screening and at 6 months to examine mediation effects); and cost-effectiveness (assessed using the Client Service Receipt Inventory). Every effort was made to ensure that outcome assessors were blind to allocation.

RESULTS

A total of 138 participants were randomised (n = 69 per group). Usual care was significantly different from the intervention, which was delivered with good fidelity and adherence and minimal contamination, and was associated with no adverse effects. Trial procedures and outcome measures were acceptable. Carers and therapists reported improvement in daily functioning. The primary analysis included 106 participants. There were no significant main effects of the intervention at 6 or 12 months. The adjusted mean difference between groups on the Aberrant Behavior Checklist - irritability at 6 months post randomisation was 0.40 (95% confidence interval -2.33 to 3.14; p = 0.77). Subgroup differences in irritability/agitation at 6 months were observed for sex of child (intervention × female = 6.42, 95% confidence interval 0.00 to 12.85; p = 0.050) and attention deficit hyperactivity disorder (intervention × attention deficit hyperactivity disorder = -6.77, 95% confidence interval -13.55 to -0.01; p = 0.050). There was an effect on carer stress at 6 months by region (intervention × South England = 7.01, 95% confidence interval 0.45 to 13.56; p = 0.04) and other neurodevelopmental/genetic conditions (intervention × neurodevelopmental/genetic condition = -9.53, 95% confidence interval -18.08 to -0.98; p = 0.030). Carer-rated goal performance and satisfaction increased across sessions (p < 0.001), with a mean change of 2.75 (95% confidence interval 2.14 to 3.37) for performance and a mean change of 3.34 (95% confidence interval 2.63 to 4.40) for satisfaction. Health economic evaluation suggests that sensory integration therapy is not cost-effective compared with usual care alone.

LIMITATIONS

Limitations included variability of the intervention setting (i.e. NHS vs. private), delay for some receiving therapy, an error in administration of Vineland Adaptive Behavior Scales and no measurement of comparator arm goal performance.

CONCLUSIONS

The intervention did not demonstrate clinical benefit above standard care. Subgroup effects are hypothesis-generating only. The intervention is likely to be effective for individualised performance goals, although it is unclear whether effects were in addition to standard care or were maintained.

FUTURE WORK

Further investigation of subgroup effects is needed.

TRIAL REGISTRATION

This trial is registered as ISRCTN14716440.

FUNDING

This project was funded by the National Institute for Health and Care Research (NIHR) Health Technology Assessment programme and will be published in full in Health Technology Assessment; Vol. 26, No. 29. See the NIHR Journals Library website for further project information.

HIV behavioural surveillance among refugees and surrounding host communities in Uganda, 2006

We used a standardised behavioural surveillance survey (BSS), modified to be directly relevant to populations in conflict and post-conflict settings as well as to their surrounding host populations, to survey the populations of a refugee settlement in south-western Uganda and its surrounding area. Two-stage probability sampling was used to conduct 800 interviews in each population. The BSS questionnaire adapted for displaced populations was administered to adults aged 15-59 years. It collected information on HIV knowledge, attitudes and practices; issues before, during and after displacement; level of interaction and sexual exploitation among the refugees and host communities (i.e., nationals). Population parameters were compared and 95% confidence intervals were calculated for core HIV indicators. The demographic characteristics were similar (except for educational achievement), and HIV awareness was very high (>95%) in both populations. The refugees reported more-accepting attitudes towards persons with HIV than did nationals (19% versus 13%; p < 0.01). More refugees than nationals reported ever having had transactional sex (10% versus 6%; p < 0.01), which mostly occurred post-displacement. Five percent of females among both the refugees and nationals reported experiencing forced sex, which mostly occurred post-displacement and after the arrival of refugees, respectively. Nationals reported more frequent travel to refugee settlements than reported by refugees to national villages (22% versus 11%; p < 0.01). The high mobility and frequent interactions of these two populations suggest that integrated HIV programmes should be developed and would be an efficient use of resources. Evidence suggesting that female refugees may be at elevated risk for HIV infection, due to forced sex, transactional sex and other vulnerabilities, warrants further examination through qualitative research. The findings indicate a need for additional, focused HIV-prevention programmes, such as youth education, for both refugees and Ugandan nationals.

Misconceptions about HIV prevention and transmission in Botswana

Misconceptions about how HIV can be transmitted or prevented often prevent individuals from making informed choices and taking appropriate action. The purpose of the research was to explore the socio-demographic and behavioural factors in Botswana that are associated with misconceptions about HIV prevention and transmission. The data used were from the Botswana AIDS Impact Survey II conducted in 2004, which constitutes a nationally representative sample. Results from bivariate and multivariate analyses show that young people, males, the less educated, those who did not use a condom during their last instance of sexual intercourse, and those who believe that nothing can be done to reduce HIV infection are most likely to harbour misconceptions about how HIV can be prevented and transmitted. Since misconceptions may prevent people from making informed choices, intervention programmes aimed at HIV prevention should aim to dispel misconceptions about HIV and AIDS as an important part of their strategy. Targeted HIV prevention and education programmes are needed in an effort to dispel such misconceptions and likewise to address the needs of different population sub-groups.

Sexual activity and condom use among people living with HIV in Swaziland

A number of studies have shown strong evidence of the association between HIV testing and an increase in consistent condom use. These studies have shown that HIV testing has contributed to a reduction in risk behaviours, since knowledge of HIV status can motivate both HIV-positive and HIV-negative people to practise safer sex. However, the extent to which knowledge of one's HIV status contributes to behavioural change among people living with HIV (PLHIV) has not been comprehensively documented. Drawing on an analysis of 37 in-depth interviews and five focus group discussions with PLHIV, this paper examines the nature of sexual activity and condom use among PLHIV in Swaziland. The paper explores issues pertaining to behavioural change and safer sex, and how these are influenced by the individual's HIV-positive status and the prevailing social-structural forces. Several factors inhibit the adoption of protective sexual behaviour among HIV-positive sexual partners, some of whom have access to life-saving drug therapy. These factors include a lack of adequate social support structures and prevailing gender power imbalances that deny women control over their sexual lives. To promote behavioural change among PLHIV, the paper proposes the expansion of the scope of information, education and communication strategies to include activities aimed at continually sensitising PLHIV regarding safer sex, as well as activities geared towards improving communication between PLHIV and their health-caregivers with regard to HIV-protective behaviours.

The impact of participatory and non-participatory evaluations on meeting project objectives

This study investigates the value of participation on meeting a project's objectives by comparing the impact of participatory and non-participatory evaluation frameworks. We assessed HIV/AIDS projects that shared similarities in terms of objectives and implementation strategies, but differed in their evaluation strategies, in order to identify differences in the outcome of the projects on the beneficiaries. The study concentrated on documentary and interview evidence of communication-based HIV/AIDS projects. The results highlight that in spite of socio-demographic differences, consistent use of a participatory methodology created an enabling environment, in terms of implementation, for meeting a project's objectives (particularly improved group awareness, knowledge, attitude, empowerment, functioning and sustainability); and, in terms of evaluation, a participatory methodology better enabled the internalisation of those objectives, through activities such as focus group discussions.

Perception of risk of HIV infection in marital and cohabiting partnerships

The purpose of this paper is to understand how married and cohabiting men and women define risk and to identify the factors that influence risk perceptions in a setting with a high prevalence of HIV infection. A combination of qualitative and quantitative methods was used during a cross-sectional survey conducted among 248 men and 289 women in KwaZulu-Natal, South Africa. Forty in-depth interviews were conducted with sexually-active men and women in the same population. The majority of men and women perceived themselves at risk of HIV infection. Women were more likely than men to report a higher risk of HIV infection. Nearly 46% of women and 28% of men perceived themselves at medium or high risk of HIV infection. The qualitative and quantitative data show that perception of risk of HIV infection was influenced both by a person's own sexual behaviour and a partner's sexual behaviour. Men were significantly more likely to perceive themselves at risk because of their own risky sexual behaviour (P < 0.01). In general, few women reported engaging in risky sexual behaviour. However, women were more likely to report that their partners had other sexual partners. Thus, women were significantly more likely to perceive themselves at risk because of their partner's sexual behaviour (P < 0.05). Also, rural women were significantly more likely than urban women to perceive a high risk of HIV infection (P < 0.05). Prevention programmes have an important role to play in creating awareness of the risk of HIV, especially among men. The belief that they are not at risk of HIV infection may result in their failure to adopt self-protective behaviour.