# Psychometric Properties of the Brazilian Version of Environmental Protectors Against Hospital Work Stress

## TL;DR

This study evaluates the reliability and structure of a Brazilian version of a stress protection scale for hospital workers.

## Contribution

The paper validates the psychometric properties of the Brazilian Portuguese version of the ENPROS instrument.

## Key findings

- The ENPROS instrument has a four-factor structure with good fit indices (CFI = 0.988; TLI = 0.988).
- Cronbach’s alpha was 0.95, indicating strong internal consistency.
- Convergent validity was supported by significant correlations with the Job Stress Scale.

## Abstract

Objective: To analyse the psychometric properties of the Brazilian version of the Environmental Protectors Against Hospital Work Stress (ENPROS). Methods: A cross-sectional methodological study was conducted in two public hospitals in São Paulo state, Brazil, involving 431 doctors and nursing staff. Exploratory and confirmatory factor analyses were performed to assess the construct validity of the instrument. To evaluate internal consistency and measurement stability, Cronbach’s alpha and the intraclass correlation coefficient (ICC) were used. Convergent validity was tested by comparison with the Job Stress Scale. Results: Exploratory factor analysis indicated a structure comprising four factors, with satisfactory factor loadings and commonalities ranging from 0.26 to 0.75. Confirmatory factor analysis suggested a model with good fit (CFI = 0.988; TLI = 0.988; RMSEA = 0.064; SRMR = 0.067). Cronbach’s alpha was 0.95, and the intraclass correlation coefficient (ICC) was 0.45. Convergent validity showed significant correlations between the ENPROS domains and the Job Stress Scale factors, particularly in the social support domain. Conclusions: The Brazilian Portuguese version of the Environmental Protectors Against Hospital Work Stress scale has a four-dimensional structure, adequate reliability, and a good fit to the proposed factorial model.