Category: Statistics

J Magn Reson Imaging. 2022 Feb 26. doi: 10.1002/jmri.28133. Online ahead of print.

ABSTRACT

BACKGROUND: Characterization of blood supply changes in older individuals is important in understanding brain aging and diseases. However, prior studies largely focused on cross-sectional design, thus change in cerebral blood flow (CBF) could not be assessed on an individual level.

PURPOSE: To evaluate longitudinal short-term changes in global CBF in cognitively normal older adults.

STUDY TYPE: Prospective, longitudinal, and cohort.

POPULATION: One-hundred twenty-seven cognitive-normal participants (mean age 69 ± 7 years, 47 males) underwent serial MRI with an average follow-up time of 2.1 years.

FIELD STRENGTH/SEQUENCE: 3 T phase-contrast (PC), three-dimensional magnetization-prepared-rapid-acquisition-of-gradient-echo (MPRAGE) and fluid-attenuated inversion recovery (FLAIR) MRI.

ASSESSMENT: Total CBF was measured with PC MRI allowing assessment of quantitative flow in four major feeding arteries by a trained radiologist with >3 years’ experience (O.K.). Brain volume was obtained from MPRAGE MRI and measured by T1-MultiAtlas MRICloud tool. The ratio between total CBF and brain volume yielded global CBF in mL/100 g/min. White matter hyperintensity (WMH) was measured automatically using a Bayesian probability approach on FLAIR.

STATISTICAL TESTS: Linear mixed effect model was used to simultaneously assess cross-sectional age-differences and longitudinal age-changes in CBF. Spearman rank correlation was used to evaluate the relationship between CBF change and WMH progression. A P-value of <0.05 (two-tailed) was considered significant.

RESULTS: Global CBF decreased with age at a longitudinal rate of -0.56 mL/100 g/min/year (95% confidence interval [CI]: -1.09, -0.03), compared to a cross-sectional rate of -0.26 mL/100 g/min/year (95% CI: -0.41, -0.11). Changes in CBF were significantly associated with progression of WMH (Spearman rank correlation r = -0.25), as those participants who had a more rapid CBF reduction had greater increases in WMH volumes and the relationship remained significant when adjusting for baseline vascular risk scores. Additionally, age-related changes in whole-brain volume were found to be -0.151%/year (95% CI: -0.186, -0.116).

DATA CONCLUSION: These findings suggest that brain aging in older adults is accompanied by a rapid longitudinal reduction in CBF, the rate of which is associated with white matter damage.

LEVEL OF EVIDENCE: 1 TECHNICAL EFFICACY STAGE: 2.

PMID:35218111 | DOI:10.1002/jmri.28133

Scand J Med Sci Sports. 2022 Feb 25. doi: 10.1111/sms.14146. Online ahead of print.

ABSTRACT

OBJECTIVE: A negative decline of motor competence in children has been observed over the last decades. Though, most studies derive their inferences from only two distant points in time and thus neglect to investigate the variability of the temporal trends.

METHODS: Between the year 2000 and 2011, 35 018 second graders performed the Körperkoordinationstest für Kinder (KTK), consisting of four items (WB, HH, JS and MS) and a six-minute run test (6MRT). A hierarchical Bayesian regression model with varying intercepts and temporal trends was fitted to the data. Age, sex and BMI-categories were included as input variables. The outcome variables were z-standardized to the initial cohort.

RESULTS: In all four KTK-items we observed a yearly decline of -0.020 (95% UI -0.038 to -0.001) for WB, -0.054 (95% UI -0.071, -0.037) for HH, -0.028 (95% UI -0.045 to -0.012) for JS and -0.088 (95% UI -0.108 to -0.067) for MS. For the 6MRT no trend was identified. Overweight and obese children showed a disadvantage in all tests scores. Negative time-interactions were observed for overweight and obese children in HH and JS. A substantial between-city variation for all temporal trends was observed. The predictive validation for all models but MS was successful.

CONCLUSION: A general negative decline was confirmed for coordinative abilities but not in cardiorespiratory fitness. For all outcome variables a substantial between-city variation was observed, highlighting the importance of environmental factors in motor development. Overweight and obese children demonstrated an urgent need for action.

PMID:35218079 | DOI:10.1111/sms.14146

J Clin Apher. 2022 Feb 26. doi: 10.1002/jca.21976. Online ahead of print.

ABSTRACT

BACKGROUND: Autologous stem cell transplantation (ASCT) is a standard consolidation treatment for eligible patients with multiple myeloma (MM). There is no standardized mobilization regimen for collection of CD34+ stem cells, which is crucial to the success of ASCT. Cyclophosphamide/GCSF is an effective regimen, although reported associated toxicities include risk of febrile neutropenia (FN). Since plerixafor was introduced in Canada, this mobilization agent has been increasingly used as needed with GCSF at Kingston Health Science Centre (KHSC), with elimination of cyclophosphamide. This single center, retrospective, quality improvement study evaluates mobilization and ASCT outcomes of MM patients who had undergone stem cell mobilization at KHSC with cyclophosphamide/GCSF+/-plerixafor without antibiotics, cyclophosphamide/GCSF+/-plerixafor with antibiotics, and GCSF+/-plerixafor without antibiotics.

METHODS: A retrospective chart review was conducted evaluating 137 patients. The primary outcome measure was FN rates with mobilization. Balancing measures include CD34+ cell collected, plerixafor usage, days of apheresis and transplant outcomes. Chi-square, ANOVA, or Kruskal-Wallis methods were used to test statistical significance where appropriate.

RESULTS: Our study noted a higher total and day one CD34+ count in the two groups utilizing cyclophosphamide in mobilization. All nine cases of FN occurred in these two groups (P < .05). Addition of antibiotics decreased, but did not eliminate risk of FN. There were no significant differences in the rate of plerixafor usage and number of apheresis days. Difference in transplant outcomes, including engraftment and transfusion support, were statistically but not clinically significant. A larger sample size may be needed to explore this fully. There was no significant difference in length of transplant hospital stay.

CONCLUSION: The elimination of cyclophosphamide from mobilization regimens for MM appears to significantly reduce FN rates, without increasing balancing measures such as total number of apheresis days, plerixafor usage, duration of transplant hospitalization or mortality outcomes.

PMID:35218068 | DOI:10.1002/jca.21976

Birth. 2022 Feb 25. doi: 10.1111/birt.12616. Online ahead of print.

ABSTRACT

BACKGROUND: The COVID pandemic exposed many inadequacies in the maternity care system in the United States. Maternity care protocols put in place during this crisis often did not include input from childbearing people or follow prepandemic guidelines for high-quality care. Departure from standard maternity care practices led to unfavorable and traumatic experiences for childbearing people. This study aimed to identify what childbearing people needed to achieve a positive birth experience during the pandemic.

METHODS: This mixed-methods, cross-sectional study was conducted among individuals who gave birth during the COVID pandemic from 3/1/2020 to 11/1/2020. Participants were sampled via a Web-based questionnaire that was distributed nationally. Descriptive and bivariate statistics were analyzed. Thematic and content analyses of qualitative data were based on narrative information provided by participants. Qualitative and convergent quantitative data were reported.

RESULTS: Participants (n = 707) from 46 states and the District of Columbia completed the questionnaire with 394 contributing qualitative data about their experiences. Qualitative findings reflected women’s priorities for (a) the option of community birth, (b) access to midwives, (c) the right to an advocate at birth, and (d) the need for transparent and affirming communication. Quantitative data reinforced these findings. Participants with a midwife provider felt significantly better informed. Those who gave birth in a community setting (at home or in a freestanding birth center) also reported significantly higher satisfaction and felt better informed. Participants of color (BIPOC) were significantly less satisfied and more stressed while pregnant and giving birth during the pandemic.

CONCLUSIONS: High-quality maternity care places childbearing people at the center of care. Prioritizing the needs of childbearing people, in COVID times or otherwise, is critical for improving their experiences and delivering efficacious and safe care.

PMID:35218067 | DOI:10.1111/birt.12616

Birth. 2022 Feb 25. doi: 10.1111/birt.12627. Online ahead of print.

ABSTRACT

BACKGROUND: Anecdotal and emerging evidence suggested that the 2020 COVID-19 pandemic may have influenced women’s attitudes toward community birth. Our purpose was to examine trends in community births from 2019 to 2020, and the risk profile of these births.

METHODS: Recently released 2020 birth certificate data were compared with prior years’ data to analyze trends in community births by socio-demographic and medical characteristics.

RESULTS: In 2020, there were 71 870 community births in the United States, including 45 646 home births and 21 884 birth center births. Community births increased by 19.5% from 2019 to 2020. Planned home births increased by 23.3%, while birth center births increased by 13.2%. Increases occurred in every US state, and for all racial and ethnic groups, particularly non-Hispanic Black mothers (29.7%), although not all increases were statistically significant. In 2020, 1 of every 50 births in the United States was a community birth (2.0%). Women with planned home and birth center births were less likely than women with hospital births to have several characteristics associated with poor pregnancy outcomes, including teen births, smoking during pregnancy, obesity, and preterm, low birthweight, and multiple births. More than two-thirds of planned home births were self-paid, compared with one-third of birth center and just 3% of hospital births.

CONCLUSIONS: It is to the great credit of United States midwives working in home and birth center settings that they were able to substantially expand their services during a worldwide pandemic without compromising standards in triaging women to optimal settings for safe birth.

PMID:35218065 | DOI:10.1111/birt.12627

J Community Psychol. 2022 Feb 25. doi: 10.1002/jcop.22830. Online ahead of print.

ABSTRACT

In this article, the several factors have been investigated relating to the poor mental health of the children in Punjab, Pakistan. Using the data of the survey conducted by the Punjab Bureau of Statistics, different determinants of child malnutrition and poverty were diagnosed based upon sufficient information of the children under 5 year of age. Logistic regression analysis methodology has been applied for screening the most influential factors of the study. It has been observed that the rise in poverty has prejudiced the nutritional position of the children, the mother’s education, and the fitness of the youth. It has also been observed that male children are more at risk to poor mental health than female children. A number of policy issues came to light from the findings of the study. The wealth index of all three anthropometric measures, the child malnutrition status of uneducated mothers, and the child diarrhea menace are the significant areas.

PMID:35218036 | DOI:10.1002/jcop.22830

J Sci Food Agric. 2022 Feb 26. doi: 10.1002/jsfa.11837. Online ahead of print.

NO ABSTRACT

PMID:35218014 | DOI:10.1002/jsfa.11837

Laryngoscope. 2022 Feb 25. doi: 10.1002/lary.30072. Online ahead of print.

ABSTRACT

OBJECTIVES: Acute vocal fold edema (VFE) is often a consequence of illness, allergy, or voice overuse, causing dysphonia. Although VFE typically resolves with voice rest and treatment of predisposing causes, oral glucocorticoids are often considered for performers with imminent performance demands. There are limited data about performers’ perceptions of vocal change during treatment and how this relates to their ability to perform. This study aims to examine performers’ self-perceptions of vocal function with steroid treatment.

METHODS: Fifty-five performers (34 F; 21 M) diagnosed with VFE who chose treatment with a 6-day methylprednisolone taper were prospectively assessed. They completed the Evaluation of the Ability to Sing Easily (EASE) and reported on their voice use, regimen, performance obligations, and ability to perform. Findings were compared between Day 1 and Day 6 using paired t-tests and nonparametric Wilcoxon signed-rank tests.

RESULTS: Nearly all subjects completed scheduled performances without interruption. Following treatment, all subscales of the EASE were decreased at Day 6 (Vocal Function 29.78-20.59; Pathologic Risk Indicator 26.60-17.33; Vocal Concerns 6.10-4.20). These differences were statistically significant (p < 0.0001) and greater in subjects with performances scheduled and subjects who consistently completed vocal warmups. These findings demonstrate significant improvement in several facets of performers’ self-perception of function.

CONCLUSION: Subjects reported significant improvement in vocal function with oral steroid treatment and were able to meet performance obligations. It remains important that steroids are not prescribed without laryngeal examination. Examination should be repeated when dysphonia persists, recurs swiftly, or when patients seek repeated treatment, as there may be increased risk of adverse outcomes, and continued steroid use may mask underlying chronic pathology that is best treated by other means.

LEVEL OF EVIDENCE: 4 Laryngoscope, 2022.

PMID:35218020 | DOI:10.1002/lary.30072

J Behav Health Serv Res. 2022 Feb 25. doi: 10.1007/s11414-021-09776-y. Online ahead of print.

ABSTRACT

Statistical reliability of the Treatment Perceptions Survey (TPS) questionnaire was examined using data from 19 California counties. The 14-item TPS was designed for clients receiving substance use disorder services at publicly funded community-based programs. The TPS is being used for evaluation of the State’s 1115 Medicaid Waiver, external quality review of county-based systems of care, and quality improvement efforts. The survey addresses four domains of access to care, quality of care, care coordination, and general satisfaction that each include multiple items, plus a single item focused on self-reported outcome. Reliability test results of the four domains as composite measures were statistically significant. General satisfaction ratings were the best predictor of self-reported outcome in a path analysis model, followed by ratings of care coordination and quality of care. Separate analyses of TPS data from clients receiving specialty mental health services suggest the questionnaire can also be used reliably in mental health settings.

PMID:35217967 | DOI:10.1007/s11414-021-09776-y

Eur Geriatr Med. 2022 Feb 26. doi: 10.1007/s41999-022-00621-9. Online ahead of print.

ABSTRACT

PURPOSE: Day-care services contribute to maintaining the daily living ability of older people cared for at home. This study aimed to detect factors that could impede the continuation of day-care services.

METHODS: We collected clinical data of 132 older users (age = 82.8 ± 7.5 years; male:female = 49:83) utilizing our day-care center from April 2019 to March 2020. We evaluated age, sex, underlying disease, medication, family background, care level, food texture, physical ability, reasons for frequenting day-care centers, and combined medical/nursing care plans. Participants were divided into two groups: continuation (n = 51) and suspension (n = 81). The collected items were evaluated statistically using the chi-square test, Mann-Whitney test, and unpaired t test. Multivariate logistic analysis (forward-backward stepwise selection method) was added to the statistically significant items. Statistical significance was defined as p < 0.05.

RESULTS: The comparison test detected statistical significance in Parkinson disease/Parkinsonism, pain complaints, day-service use, short-stay service use, day-care center use to reduce care burden, physical ability including ambulation, and availability of the major caregiver (p < 0.05). Day-care service use to reduce care burden (odds ratio 5.646, p < 0.05), use of short-stay and day-care services (odds ratio 4.798, p < 0.05), and low independent ambulation (odds ratio 0.585, p < 0.05) were the likely factors for suspended use (percentage of correct classification = 68.5%).

CONCLUSION: An unreplaceable and effective program for day-service and short-stay services to improve the activities of daily living of older users and reduce care burden is required in day-care centers.

PMID:35217981 | DOI:10.1007/s41999-022-00621-9