BA.plot: An R function for Bland-Altman analysis

Karun, Kalesh M; Puranik, Amitha

doi:10.1016/j.cegh.2021.100831

Cited by 16 publications

(8 citation statements)

References 4 publications

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“…The concordance between DAP-based K S and those measured, as well as the concordance between FT-based K S those measured was evaluated using the Bland-Altman plot [22]. R (analytical software) was used for calculations [23].…”

Section: Discussionmentioning

confidence: 99%

Use of secondary air kerma from dose area product and fluoroscopy time for preventive effective dose estimation in interventional radiology procedures for staff

Indovina,

Moretti,

Breschi

et al. 2023

J. Radiol. Prot.

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Introduction: Interventional radiology workers are potentially exposed to high levels of ionizing radiations, therefore preventive dose estimation is mandatory for a correct risk classification of staff. Effective Dose (ED) is a radiation protection quantity strictly related to the secondary air kerma (KS), by using appropriate multiplicative conversion factors (ICRP 106). The aim of this work was to evaluate the accuracy of KS estimated from a physical measurable quantity such as Dose-Area Product (DAP) or Fluoroscopy Time (FT). Methods: Radiological units (n=4) were characterized in terms of primary beam air kerma and DAP-meter response consequently defining a DAP-meter Correction Factor (CF) for each unit. Then KS, scattered from an anthropomorphic phantom and measured by a digital multimeter, was compared with the one estimated from DAP and FT. Different combinations of tube voltages, field sizes, current and scatter angles were used to simulate the variation of working conditions. Further measures were performed to estimate the couch transmission factor for different phantom placements on operational couch defining a CF as the mean transmission factor. Results: When no CFs were applied, measured KS showed a median percentage difference between 33.8% and 115.7% with respect to KS evaluated from DAP, while between -46.3% and 101.8% for KS evaluated from FT. Instead when previously defined CFs were applied on evaluated KS, the median percentage difference between measured KS and the one evaluated from DAP ranged between -7.94 % and 15.0%, while between -66.2% and 17.2% for that evaluated from FT. Conclusion: When appropriate CF are applied, the preventive ED estimation from median DAP value seems to be more conservative and easier to obtain with respect to the one from FT value. Further measures should be performed with personal dosimeter in routine activities to assess the proper KS to ED conversion factor.

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Section: Discussionmentioning

confidence: 99%

Use of secondary air kerma from dose area product and fluoroscopy time for preventive effective dose estimation in interventional radiology procedures for staff

Indovina,

Moretti,

Breschi

et al. 2023

J. Radiol. Prot.

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“…Currently, there are no uniform criteria to assess the quality of transition care in elderly patients with chronic diseases, and it was not possible to compare the CTM and PACT-M scales with the criteria to verify their consistency. The bland–Altman analysis is a method to quantify the agreement between two quantitative measurements by constructing limits of agreement, and the results of the analysis can be visualized in a Bland–Altman plot [ 18 ]. The Bland–Altman plot is a two-dimensional right-angle coordinate (see Figs.…”

Section: Methodsmentioning

confidence: 99%

Assessing the agreement between the partners at care transitions measure and the care transitions measure for elderly patients with chronic diseases

Liu

Sun

Liu

et al. 2023

BMC Health Serv Res

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Background Elderly patients with chronic diseases are very vulnerable during the transition from hospital to home and have a high need for transitional care. The quality of transitional care is closely related to patient health outcomes. Using appropriate scales to evaluate the quality of transitional care is important for efforts aimed at improving it. The study aimed to analyze the consistency between the Chinese version of the Partners at Care Transitions Measure (PACT-M) and the Care Transition Measure (CTM) in assessing the quality of transition care in elderly patients with chronic diseases. Methods This is a cross-sectional study, we used a convenience sampling method to investigate patients with chronic diseases aged ≧ 65 years who were about to be discharged from the three affiliated hospitals of Zhengzhou University in Henan Province, from August 2021 to May 2022. The sample consisted of 196 elderly patients with chronic diseases. Data were collected using a demographic survey, PACT-M, and CTM. We used EpiData 3.1 software for systematic logical error checking, SPSS 21.0 to analyze the data, and the Bland–Altman analysis to analyze the consistency of the two scales. Results The mean total scores for PACT-M and CTM were 65.52 ± 6.23 and 52.07 ± 7.26, respectively. The 95% confidence interval (CI) for the mean difference and ratios were (-31.52, 4.61) and (0.85, 1.72), with 3.57% and 5.10% of the points outside the 95% CI limits, separately. Conclusions The difference analysis of Bland–Altman showed a good consistency of the two scales, while the rate analysis did not meet the a priori definition of good consistency, but it is very close to 5%. Therefore, the consistency of the two scales in assessing the quality of transitional care for elderly patients with chronic diseases needs to be further validated.

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“…In a Bland–Altman plot, mean differences show the level of disagreement between the two methods, and the direction of mean differences indicates that the method overestimates or underestimates the corresponding sleep parameters from two methods (De Jaeger et al, 2019). The Bland–Altman plots were tested using R package BA.plot (Karun & Puranik, 2021).…”

Section: Methodsmentioning

confidence: 99%

Psychometric properties of the Brief Version of Pittsburgh Sleep Quality Index (B-PSQI) among Chinese male sailors on 18-hr rotating shift schedule.

Tu,

He,

Zhai

et al. 2023

Psychological Assessment

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Sleep problems among shift workers have emerged as a public health concern in recent years. However, few validation studies of self-reported sleep quality questionnaires were performed among shift workers. The present study aimed to examine the psychometric properties of the Brief Version of Pittsburgh Sleep Quality Index (B-PSQI) in a shift workers sample. In total, 443 Chinese male sailors were recruited, of whom 46.95% (n = 208) were watchstanding sailors on 18-hr working schedule at sea. All participants completed the B-PSQI, the Insomnia Severity Index (ISI), the Self-Rating Depression Scale, and Self-Rating Anxiety Scale before and after a 30-day saling. Forty watchstanding sailors were selected to wear wrist actigraphy throughout the sailing. The results showed that the B-PSQI had acceptable internal consistency reliability in different sailor groups. Confirmatory factor analysis showed optimal fit of the single-factor model of the B-PSQI in different sailor groups. Furthermore, scalar invariance between watchstanding and day-working sailors was supported, as well as longitudinal scalar invariance across time. In addition, receiver operating characteristic analysis showed that the B-PSQI yields high discrimination power to detect poor sleep quality using ISI ≥ 8 criterion. However, a lack of intermethod agreement across the B-PSQI and actigraphy was found in this study. Moreover, the total scores of B-PSQI were positively related to depression and anxiety symptoms in the present sample. The B-PSQI is a reliable and valid sleep quality measure and a useful screening tool for sleep disorders among Chinese male sailors.

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BA.plot: An R function for Bland-Altman analysis

Cited by 16 publications

References 4 publications

Use of secondary air kerma from dose area product and fluoroscopy time for preventive effective dose estimation in interventional radiology procedures for staff

Use of secondary air kerma from dose area product and fluoroscopy time for preventive effective dose estimation in interventional radiology procedures for staff

Assessing the agreement between the partners at care transitions measure and the care transitions measure for elderly patients with chronic diseases

Psychometric properties of the Brief Version of Pittsburgh Sleep Quality Index (B-PSQI) among Chinese male sailors on 18-hr rotating shift schedule.

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