[Work, family and nurses perception about their own health: relationship with breast cancer and shift work.]

Breast cancer is a commonly diagnosed disease in nurses that, from recent years, has been linked to shift work and night work. Also, different components of work stress have such an impact on the nurses' health and work, family and social conciliation. The objective of this research was to analyze the family and working characteristics of Spanish nurses who perform shift work (including night shifts) in search of possible associations with manifestations of psychosomatic stress and the risk of breast cancer.

A cross-sectional descriptive study was conducted through a virtual questionnaire in a sample of 966 Registered Nurses in Spain between December 2019 and November 2020. A descriptive analysis of sociodemographic and occupational variables was performed, and statistically significant differences and associations were contrasted by estimating risks and confidence intervals.

The number of night shifts throughout life and the number of years worked were statistically significant for the association with breast cancer. In addition, other psychosomatic manifestations such as insomnia, palpitations or extreme tiredness were highlighted. Among the most appreciated aspects to generate job satisfaction, co-worker's relationship was underlined.

Rotating shift work can cause multiple clinical alterations that could lead to problems related to family conciliation, self-care or employment wellness. It is important to control the physical, psychological and emotional overload of nurses.