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Table 1 The three steps to developing a complex intervention according to the MRC and the steps to developing the Caring for Couples Coping with Cancer 4Cs Programme

From: The development of a complex intervention in China: the ‘Caring for Couples Coping with Cancer “4Cs” Programme’ to support couples coping with cancer

Steps in the MRC framework for developing a complex intervention

Steps taken to develop the 4Cs Programme

Identifying the evidence base

Conducting a series of extensive reviews of studies related to the spousal caregivers of cancer patients

Primary research: Conducting a focus group study: the Experiences of Chinese Couples Living with Cancer

Identifying/developing a theory

Proposing a preliminary Live with Love Conceptual Framework (P-LLCF) for cancer couple dyads

Modelling process and outcomes

Developing and presenting the related contents of the 4Cs programme