Dataset Information

Cat-PROM5: a brief psychometrically robust self-report questionnaire instrument for cataract surgery.

ABSTRACT: PurposeTo develop a short, psychometrically robust and responsive cataract patient reported outcome measure suitable for use in high-volume surgical environments.MethodsA prospective study in which participants completed development versions of questionnaires exploring the quality of their eyesight using items harvested from two existing United Kingdom developed parent questionnaires. Participants were 822 patients awaiting cataract surgery recruited from 4 cataract surgical centres based in the UK. Exclusion criteria were other visually significant comorbidities and age <50 years. An iterative multi-stage process of evaluation using Rasch and factor analyses with sequential item reduction was undertaken.ResultsA definitive item set of just five items delivered performance in accordance with the requirements of the Rasch model: no threshold disordering, no misfitting items, Rasch-based reliability 0.90, person separation 2.98, Cronbach's ? 0.89, good targeting of questions to patients with cataract with pre-operative item mean -0.41 logits and absence of significant floor or ceiling effects, minor deviations of item invariance, and confirmed unidimensionality. The test-re-test repeatability intra-class correlation coefficient was 0.89 with excellent responsiveness to surgery, Cohen's d -1.45 SD. Rasch calibration values are provided for Cat-PROM5 users.ConclusionsA psychometrically robust and highly responsive five-item cataract surgery patient reported outcome measure has been developed, which is suitable for use in high-volume cataract surgical services.

SUBMITTER: Sparrow JM

PROVIDER: S-EPMC5898878 | biostudies-literature | 2018 Apr

REPOSITORIES: biostudies-literature

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Cat-PROM5: a brief psychometrically robust self-report questionnaire instrument for cataract surgery.

Sparrow J M JM Grzeda M T MT Frost N A NA Johnston R L RL Liu C S C CSC Edwards L L Loose A A Donovan J L JL

Eye (London, England) 20180309 4

PurposeTo develop a short, psychometrically robust and responsive cataract patient reported outcome measure suitable for use in high-volume surgical environments.MethodsA prospective study in which participants completed development versions of questionnaires exploring the quality of their eyesight using items harvested from two existing United Kingdom developed parent questionnaires. Participants were 822 patients awaiting cataract surgery recruited from 4 cataract surgical centres based in the ...[more]

PMID: 29521952

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Project description:BACKGROUND: Patients with end-stage renal disease (ESRD) have multiple comorbid conditions. Obtaining comorbidity data from medical records is cumbersome. A self-report comorbidity questionnaire is a useful alternative. Our aim in this study was to examine the predictive value of a self-report comorbidity questionnaire in terms of survival in ESRD patients. METHODS: We studied a prospective cross-sectional cohort of 282 haemodialysis (HD) patients in a single centre. Participants were administered the self-report questionnaire during an HD session. Information on their comorbidities was subsequently obtained from an examination of the patient's medical records. Levels of agreement between parameters derived from the questionnaire, and from the medical records, were examined. Participants were followed-up for 18 months to collect survival data. The influence on survival of comorbidity scores derived from the self-report data (the Composite Self-report Comorbidity Score [CSCS]) and from medical records data--the Charlson Comorbidity Index [CCI] were compared. RESULTS: The level of agreement between the self-report items and those obtained from medical records was almost perfect with respect the presence of diabetes (Kappa score ? 0.97), substantial for heart disease and cancer (? 0.62 and ? 0.72 respectively), moderate for liver disease (? 0.51), only fair for lung disease, arthritis, cerebrovascular disease, and depression (? 0.34, 0.35, 0.34 and 0.29 respectively). The CSCS was strongly predictive of survival in regression models (Nagelkerke R(2) value 0.202), with a predictive power similar to that of the CCI (Nagelkerke R(2) value 0.211). The influences of these two parameters were additive in the models--suggesting that these parameters make different contributions to the assessment of comorbidity. CONCLUSION: This self-report comorbidity questionnaire is a viable tool to collect comorbidity data and may have a role in the prediction of short-term survival in patients with end-stage renal disease on haemodialysis. Further work is required in this setting to refine the tool and define its role.

Project description:CONTEXT:There is need for a short validated self-report instrument for assessing the feeling of being loved. The Feeling Loved instrument asks: "Do you feel loved?" and "How loved do you feel?" as well as "Do you love yourself?" and "How much do you love yourself?" with 100 mm visual analogue scales assessing the continuous response options. OBJECTIVE:To assess convergent and discriminant validity and to explore psychometric structure for this novel self-report measure. DESIGN:Convergent validity comparators include: general mental health, perceived social support, perceived stress, depressive symptoms, and positive/negative emotion. Discriminant validity comparators include: gender, age, ethnicity, socioeconomic status, and body mass index. Latent class analysis techniques explore psychometric structure. SETTING:Baseline evaluation for a randomized controlled trial. PARTICIPANTS:Community-recruited adults in Madison, Wisconsin. INTERVENTION:This validation study is based on pre-intervention data. MAIN OUTCOME MEASURES:Strength of correlation with comparators is used to assess convergence and discrimination. Goodness-of-fit indicators assess latent class models. RESULTS:Of n?=?412 respondents, 92% answered positively to both Yes/No questions, and 59% self-rated ?75/100 on both 0-to-100 VAS scales. Supporting convergent validity, highly significant (p < 0.001) Spearman's rho=? correlations of a summed Feeling Loved score were: mental health (??=?0.49); social support (??=?0.46); perceived stress (??=?-0.46), depressive symptoms (??=?-0.31), and both positive (??=?0.50) and negative (??=?-0.43) emotion. Significant associations were also found for personality indicators. Supporting discriminant validity, Feeling Loved scores did not correlate significantly with physical health (??=?-0.08), body mass index (??=?0.01), age (??=?0.06), or income (??=?0.07) (p values all ? 0.12). Latent class analysis models suggested a 3-class structure, with strong goodness-of-fit indicators.

Dataset Information

Cat-PROM5: a brief psychometrically robust self-report questionnaire instrument for cataract surgery.

Publications

Cat-PROM5: a brief psychometrically robust self-report questionnaire instrument for cataract surgery.

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