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Measuring neonatal intensive care unit-related parental stress

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franck l.s., cox s., allen a. & winter i. (2005) Journal of Advanced Nursing49(6), 608–615

Measuring neonatal intensive care unit-related parental stress Aims. 

This paper reports a study: (1) to determine the validity and reliability of the Parent Stressor Scale:Neonatal Intensive Care Unit (PSS:NICU) for use with United Kingdom (UK) parents; (2) compare UK scores with those from a contemporary reference sample from the United States (US), (3) to identify the sources of greatest NICU-related stressors for parents and (4) to identify demographic or situational factors influencing NICU-related parental stress. Background. 

Evaluation of the adequacy of nursing care and psychosocial support services for parents of ill infants in the NICU requires valid and reliable measures of parental stress. The PSS:NICU is a well-validated scale developed in the US to measure NICU-related parental stress. However, it has not been tested in the UK. Methods. 

Consecutive samples of parents (n = 257) of infants in nine UK NICUs and two reference US units completed the PSS:NICU and the Spielberger State-Trait Anxiety Scale approximately 1 week after admission. Psychometric properties of the PSS:NICU, including internal consistency reliability and construct, concurrent and predictive validity, were evaluated. Results. 

PSS:NICU scores were similar in the UK and US samples and high internal consistency reliability was found for all metrics (e.g. Overall Stress: 0·94 for both samples). A three-factor principal components solution accounted for 66% of the variance in the scores, with the items grouped into the three a priori scales specified in the PSS:NICU (Infant Behaviour and Appearance, Parental Role Alterations, and Sights and Sounds). Stress Occurrence and Overall Stress were moderately correlated with State Anxiety in both samples (r = 0·46–0·61, P < 0·001). Thirty-one per cent of the variance in Stress Occurrence in the UK sample was explained by State Anxiety, infant severity of illness score, parent gender, and less frequent visitation. Conclusions. 

The PSS:NICU demonstrated appropriate psychometrics in a large sample of parents from diverse NICUs in the UK. These findings support its wider use in research and clinical practice to identify parental distress and evaluate the effectiveness of nursing care and psychosocial support services for parents.
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Keywords: Parent Stressor Scale:Neonatal Intensive Care Unit; neonatal care; nursing; parenting; stress

Document Type: Research Article

Publication date: March 1, 2005

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