The Patient Outcomes of Surgery-Head/Neck (POS-head/neck): a new patient-based outcome measure.
OBJECTIVE
To develop a new patient-based outcome measure in plastic surgery for head/neck skin lesions for use in audit, clinical trials and effectiveness studies.


METHODS
Questionnaire development and validation study. Qualitative methods, including interviews with 27 patients, were carried out to develop a preliminary version of the questionnaire. The questionnaire was then field tested by postal survey of 141 pre- and 250 post-surgery patients to produce a shortened (item-reduced) questionnaire and to evaluate acceptability, reliability, validity and responsiveness. A second field test was carried out by postal survey in an independent sample of 67 pre-surgery patients to further evaluate the reliability and validity of the questionnaire.


METHODS
Psychometric properties of acceptability, reliability, validity, and responsiveness were assessed.


RESULTS
We developed a new measure, the Patient Outcomes of Surgery-Head/Neck (POS-Head/Neck), which includes a six- and nine-item pre- and post-surgery questionnaire, respectively. Results confirmed the acceptability (missing data <10%, evenly distributed endorsement frequencies), reliability (Cronbach alphas >0.76, item-total correlations >0.22), validity (scale inter-correlations r=0.50, scaling assumptions, correlations with age and sex < -0.25) and responsiveness (effect size=0.63) of the questionnaire.


CONCLUSIONS
The POS-Head/Neck is a new surgical outcome measure that can be used to evaluate outcomes in malignant and benign head/neck skin lesions before and after surgery is acceptable to patients and satisfies rigorous scientific criteria.
Cano
S J
SJ
Health Services Research Unit, London School of Hygiene and Tropical Medicine, Keppel Street, London WC1E 7HT, UK. stefan.cano@lshtm.ac.uk
Browne
J P
JP
Lamping
D L
DL
Roberts
A H N
AH
McGrouther
D A
DA
Black
N A
NA
D000293:Adolescent; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D005260:Female; D006258:Head and Neck Neoplasms / Q000534:rehabilitation / Q000601:surgery*; D006801:Humans; D008297:Male; D008875:Middle Aged; D017060:Patient Satisfaction; D011594:Psychometrics; D011788:Quality of Life; D015203:Reproducibility of Results; D011795:Surveys and Questionnaires; D016896:Treatment Outcome