Fertility Preservation in Adolescent Males.

Aim Survival rates of childhood cancer are now above 80%, so there is increasing emphasis on survivorship. A major late effect of cancer treatment is fertility loss. International best practice indicates that post-pubertal boys with cancer should be offered sperm cryopreservation prior to treatment.

An ontology-based modelling system (OBMS) for representing behaviour change theories applied to 76 theories.

To efficiently search, compare, test and integrate behaviour change theories, they need to be specified in a way that is clear, consistent and computable. An ontology-based modelling system (OBMS) has previously been shown to be able to represent five commonly used theories in this way. We aimed to assess whether the OBMS could be applied more widely and to create a database of behaviour change theories, their constructs and propositions.

Do Combinations of Behavior Change Techniques That Occur Frequently in Interventions Reflect Underlying Theory?

Background: Behavioral interventions typically include multiple behavior change techniques (BCTs). The theory informing the selection of BCTs for an intervention may be stated explicitly or remain unreported, thus impeding the identification of links between theory and behavior change outcomes.

Purpose: This study aimed to identify groups of BCTs commonly occurring together in behavior change interventions and examine whether behavior change theories underlying these groups could be identified.