This chapter provides a comprehensive review of some of the key issues in early intervention for psychosis using the example of a population-based service in Hong Kong, for which a full range of data is available. The authors review a number of studies addressing: (i) the DUP and its associated factors in Hong Kong; (ii) whether DUP can be changed by public awareness programmes; (iii) the immediate outcome of a two-year early intervention programme; (iv) whether the improved outcome can be sustained after the programme, over ten years; and (v) whether receiving one more year of intervention could further improve the outcome. The results show that even in a low-resource setting in Hong Kong, significant improvements in functioning can be achieved, with reduced hospitalization and reduced suicide. A long-term follow-up study observed that these effects are sustainable over ten years. Further improvements can be attained by providing longer intervention to a group that responded less favourably. However, these enhancements proved more difficult to sustain. Together, these suggest a possible dose effect on the impact and sustainability of early intervention for psychosis. Future work should aim to clarify the role of increased intervention resources such as manpower and a more defined specific programme (e.g. coaching, exercise, cognitive interventions). More work is also required to investigate the culture of early psychosis services (such as a hope-centred culture), as well as how more personalized needs of individual patients can be met.
The Parenting Early Intervention Programme in England, 2006-2011; a classed experience?
