Abstract
Migrants with precarious status (MPS) are an understudied population. Yet there are indications that they could be particularly vulnerable and confronted to health inequalities. This review of Canadian and international literature highlights that MPS, like other migrants, are confronted with deleterious living conditions and multiple obstacles to access healthcare. However, their status brings additional challenges and harmful health determinants. The situation of MPS may well be similar in Canada, where they could be numerous. Therefore it is crucial to better document this issue within the Canadian context. Part B of this article, reported elsewhere, further explores this topic.