PPCT Model: รูปแบบชีวนิเวศวิทยาเพื่อพัฒนาสุขภาพ ผู้มีภาวะเจ็บป่วยเรื้อรังในชุมชน PPCT Model: Bioecological Model for Developing Health of People with Chronic Conditions in the Community

Chronic condition is an important problem around the world. Therefore, long term care development in the community is needed. The aim of this article is to propose the model, created by Urie Bronfenbrenner, composed of 4 components, namely ‘Bioecological Model’ or ‘Process-Person-Context-Time Model’ (PPCT Model). The term ‘Process’ refers to the interactions between the person at the centre of the model and the environments around them. A ‘Person’ is located at the centre of model. ‘Context’ refers to the environment as ‘nested systems’ known as _ micro-system, meso-system, exo-system, and macro-system in which the person is located. The last element is ‘Time’, explanation for changes occur as time progresses. Using this model as a framework for exploring complex phenomena and developing appropriate strategies to improve