Skip to content

Effects of incentives on treatment rates among young people with rheumatic fever in Waikato, New Zealand

The effects of incentivizing young people with rheumatic fever through a mobile phone and monthly top-ups on secondary prophylaxis adherence

Status
Completed
Phases
Unknown
Study type
Interventional
Source
ANZCTR
Registry ID
ACTRN12618001150235
Enrollment
80
Registered
2018-07-12
Start date
2016-08-19
Completion date
2016-08-31
Last updated
2019-07-15

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

None listed

Brief summary

Youth who have had Rheumatic Fever (RF) need monthly penicillin injections to prevent Rheumatic Heart Diseases (RHD). About 20 % of 14- 21 year olds on the Waikato RF registry are non-compliant; past efforts to increase compliance have been unsuccessful. This study uses a multiple baseline research design to provide a test of an incentivized intervention (specifically mobile phone with monthly top-ups for data, text and calling) for increased compliance, especially for youth who are intermittent with their injections or have stopped receiving them. The outcome of this study will include measures of the efficacy and cost effectiveness in terms of number of increased injections and incremental cost for each extra injection.

Interventions

Type of intervention: Receipt of mobile phone and monthly top-ups (money provided for data, phone calls, and texts). Description: Data was collected by district nurses for a 3-month period prior to the start of the intervention (baseline) and then continued for 12 months post-intervention. Each injection period, nurses logged the frequency of calls/texts and visits along with date of injection scheduled and received. At the start of the intervention, district nurses provided the mobile phone.

Type of intervention: Receipt of mobile phone and monthly top-ups (money provided for data, phone calls, and texts). Description: Data was collected by district nurses for a 3-month period prior to the start of the intervention (baseline) and then continued for 12 months post-intervention. Each injection period, nurses logged the frequency of calls/texts and visits along with date of injection scheduled and received. At the start of the intervention, district nurses provided the mobile phone. During the study patients made appointments and received monthly injections as usual (i.e., there was no change for patients other than receiving the incentive). This included contacting their district nurse to arrange appointment time and location to administer injection. When patients didn't arrange a visit, nurses contacted patients via text or call to arrange a visit; this was also usual and customary practice. Nurses provided the monthly top-up when the injection was received. The top up was worth $20 and was directly provided by the nurse via an activation code. The top-ups were provided for 14 months (including two-months post final data collection). The phone was unlocked and given to the patients at the conclusion of the data collection.

Sponsors

John Oetzel
Lead SponsorIndividual

Study design

Allocation
Non-randomised trial
Intervention model
Single group
Primary purpose
Treatment
Masking
Open (masking not used)

Eligibility

Sex/Gender
All
Age
14 Years to 21 Years
Healthy volunteers
No

Inclusion criteria

Registered patient on the Waikato District Health Board 's registry for patients with rheumatic fever

Exclusion criteria

None other than age

Outcome results

None listed

Source: ANZCTR · Data processed: Feb 21, 2026