Category: Statistics

Am J Emerg Med. 2023 Jun 7;71:74-80. doi: 10.1016/j.ajem.2023.06.002. Online ahead of print.

ABSTRACT

BACKGROUND: Emergency department (ED) visits can be divided into urgent and non-urgent. A delay in seeking medical help, especially in urgent cases, can lead to fatal consequences, along with a higher rate of complications and morbidity. Coronavirus disease 2019 (COVID-19) pandemic spread led to restrictions and eventually quarantines. We investigated the impact of the COVID-19 spread and quarantine on ED visits rates comparing to parallel periods in preceding years (2013-2019). In addition, we compared this decrease to holidays and weekends, times in which a decrease in ED visits is seen.

METHODS: This was a descriptive retrospective study. Causes of ED referrals were divided into urgent and non-urgent, then into different subcategories including infectious, cardiac, etc. RESULTS: For the spring COVID-192020 quarantine period, a 56.3% decrease of mean ED visits per day was seen, as compared to preceding years (55.7% and 98.9% respectively). This decrease was also statistically evident when comparing the urgent and non-urgent causes separately and for all sub-categories. This pattern of decrease also showed statistical evidence of fewer ED visits during holidays for most comparisons, in which lower ED visit rates are expected. Significantly lower rates of ED visits were demonstrated during the COVID-19 quarantine period, as compared to preceding years and main holidays and weekends, a decrease that was also demonstrated for urgent life-threatening causes.

CONCLUSION: Our findings can be used to inform a wide range of stakeholders, including regional planners, historians, sociologists, and international healthcare organizations. Healthcare providers should understand the reasons for this ED visit decline pattern, attempt to address patients’ concerns, and increase awareness regarding alarming symptoms in urgent medical situations.

PMID:37352578 | DOI:10.1016/j.ajem.2023.06.002

Melanoma Res. 2023 Jun 21. doi: 10.1097/CMR.0000000000000906. Online ahead of print.

ABSTRACT

CDKN2A pathogenic variants are well known to be associated with cutaneous melanoma and noncutaneous tumors (NCTs). Herein, we investigated the temporal correlation between the first cutaneous melanoma and NCT both in CDKN2A mutation carriers (MUT) and in wild-type melanoma patients, a poorly explored issue to date. Two hundred forty-five cutaneous melanoma patients were genotyped for the CDKN2A gene and divided into 51 MUT and 189 wild-type; the remaining five variant carriers were excluded from the analyses. MUT developed a significantly higher number of cutaneous melanoma than wild-type, while 13.7% in both genotyped groups received a diagnosis of at least one malignant NCT, without statistically significant differences. The onset of the first cutaneous melanoma preceded that of the first malignant or benign NCT in both MUT and wild-type patients by an average of 4.5 and 3.02 years, respectively. Considering only malignant tumors, the diagnosis of melanoma preceded that of the first NCT on an average of 8 and 4.34 years, in MUT and wild-type patients respectively. We emphasize the relevance to adopt a global vision for the primary and secondary surveillance of patients affected by cutaneous melanoma, not only limited to high-risk for multiple primary skin cancers but also to NCT that may develop several years after the diagnosis of the first cutaneous melanoma.

PMID:37352544 | DOI:10.1097/CMR.0000000000000906

P R Health Sci J. 2023 Jun;42(2):158-163.

ABSTRACT

OBJECTIVE: To assess the contraceptive methods used by sexually active Hispanic women living in Puerto Rico.

METHODS: From October 2016 through February 2018, 518 patients completed a self-administered questionnaire. The inclusion criteria were being over the age of 21 and having visited San Juan City Hospital or University District Hospital. The results were analyzed using descriptive statistics and a 2-sample t test, where P < .05 was considered significant.

RESULTS: A total of 518 participants completed the questionnaire. Of the 518, 413 (81.0%) reported having used at least 1 form of contraception; 252 (49.4%) used OCPs, 305 (60.8%) used male condoms, 92 (33.8%) used the rhythm method, 83 (30.6%) undergone female sterilization, 98 (19.9%) used the withdrawal method, 92 (18.9%%) used an implant, 67 (13.5%) received progesterone injections, 41 (8.3%) used female condoms, 13 (4.9%) had partners who undergone male sterilization, 20 (4.1%) used the transdermal patch, 16 (3.2%) used a vaginal ring, and 26 (5.3%) used an intrauterine device.

CONCLUSION: Of the 518 women, 24.2% used LARC, representing an increase in the usage by this population; this increase is likely linked to LARC’s being easily accessible and free of charge. Public health interventions should be developed to increase knowledge about sexual health, educate about the effectiveness of different contraceptive methods and the prevention of sexually transmitted diseases, and reduce both the barriers to acquiring contraception and, thereby, the number of unintended pregnancies in this population.

PMID:37352539

P R Health Sci J. 2023 Jun;42(2):127-131.

ABSTRACT

OBJECTIVE: The visit-to-visit variability (VVV) of blood pressure (BP) has been recognized as a risk factor for cardiovascular events and chronic kidney disease (CKD). The objective of this study is to valuate the association between the VVV of BP and changes in estimated glomerular filtration rate (eGFR) in elderly CKD patients at different stages of renal function.

MATERIALS AND METHODS: For 60 months, we analyzed the medical records of 105 patients with and without diabetes and hypertension. Systolic BP (SBP), diastolic BP (DBP), and pulse pressure (PP) were examined. A multivariable linear regression model was used to analyze the correlation between eGFR and the VVV of BP.

RESULTS: No differences were demonstrated between the groups in the clinical characteristics. Mean SBP and DBP were not significant between the groups, and we observed no decrease in renal function. A significant negative correlation between PP and eGFR was observed in the total CKD population with a P of .010 (95% CI: -0.20, -0.03) and a correlation coefficient of -0.11.

CONCLUSION: Our study shows no statistical significances in terms of the VVVs of BP in any of the geriatric groups, with no significant decreases in renal function. However, we observed a significant negative correlation between PP and eGFR. We demonstrated that if a VVV of BP does not occur, there is no decrease in eGFR.

PMID:37352534

P R Health Sci J. 2023 Jun;42(2):121-126.

ABSTRACT

OBJECTIVE: The aim of this study was to determine the prevalence of severely increased albuminuria and the percentage of patients with the indication for canagliflozin in the type 2 diabetes population with chronic kidney disease (CKD) and low socioeconomic status in the San Juan City Hospital.

METHODS: This cross-sectional study examined the electronic records of 129 Hispanic type 2 diabetes patients. CKD in this population was defined according to the most recent nephrology and endocrinology guidelines. Albuminuria was diagnosed with two positive urine albumin/creatinine ratio results within 3-6 months. Data was obtained from July 2017 to January 2020 and analyzed utilizing descriptive statistics and correlations.

RESULTS: The prevalence of moderately and severely increased albuminuria in patients with type 2 diabetes and CKD were 51.2% and 18.6% respectively. The number of patients with type 2 diabetes who filled the FDA indication for canagliflozin were 16.3%. The prevalence of hypertension, coronary artery disease (CAD) and heart failure (HF) was 61.2%, 15.5% and 10.1% respectively. Between albuminuria severity and decreased renal function, a tendency was observed although not statistically significant (r = -0.14, 95% CI: -0.31, 0.03; P = 0.109). While evaluating association between albuminuria groups and CAD, there was a noticeable tendency close to reaching statistical significance (P = 0.060).

CONCLUSION: There is a scarcity of studies regarding the prevalence of severely increased albuminuria in type 2 diabetics with CKD and this study contributes to the literature. On analysis of associations, statistical significance not reached likely due to small sample size.

PMID:37352533

Clin Nucl Med. 2023 Jun 23. doi: 10.1097/RLU.0000000000004745. Online ahead of print.

ABSTRACT

PURPOSE: The aim of this study was to compare oral and IV administrations of 18F-NaF PET/CT for detection of suspicious bone metastatic lesions of breast and prostate cancers.

PATIENTS AND METHODS: Thirty-six patients with breast (n = 23) or prostate (n = 13) cancers and high risk for bone metastases were prospectively evaluated. All patients underwent 2 PET/CT studies after IV and oral 18F-NaF administration within a 2 to 23 days interval between them. The maximum SUVs from the same suspicious lesions (≤5 index lesions per patient) in both studies were measured. The target-to-background ratio (TBR), defined as the relation between the lesion maximum SUV and the whole skeletal mean SUV, was calculated for each lesion. The TBRs in the same lesion calculated using the 2 administration routes were compared. The agreements between 2 physicians in the definition of the number of lesions in both studies were also assessed using weighted κ.

RESULTS: One hundred thirty-four pairs of lesions were analyzed. There was no significant statistical difference between the median TBRs (P = 0.212) for IV (10.33) and oral (10.85). Excellent intraobserver agreement was observed between IV and oral routes: weighted κ of 1.0 (95% confidence interval, 0.92-1.0) and 0.92 (95% confidence interval, 0.81-0.99) for physicians 1 and 2, respectively. The interobserver coefficients were 0.82 and 0.87 for “oral versus oral” and “IV versus IV,” respectively.

CONCLUSIONS: 18F-NaF PET/CT studies using oral and IV routes present comparable performance; thus, it is possible to use oral route in patients with difficult venous access.

PMID:37351903 | DOI:10.1097/RLU.0000000000004745

JAMA Netw Open. 2023 Jun 1;6(6):e2319038. doi: 10.1001/jamanetworkopen.2023.19038.

ABSTRACT

IMPORTANCE: Spouses share common socioeconomic, environmental, and lifestyle factors, and multiple studies have found that spousal diabetes status was associated with diabetes prevalence. But the association of spousal diabetes status and ideal cardiovascular health metrics (ICVHMs) assessed by the American Heart Association’s Life’s Essential 8 measures with incident diabetes has not been comprehensively characterized, especially in large-scale cohort studies.

OBJECTIVE: To explore the association of spousal diabetes status and cardiovascular health metrics with risk of incident diabetes in Chinese adults.

DESIGN, SETTING, AND PARTICIPANTS: This cohort study included individuals in the China Cardiovascular Disease and Cancer Cohort without diabetes who underwent baseline and follow-up glucose measurements and had spouses with baseline glucose measurements. The data were collected in January 2011 to December 2012 and March 2014 to December 2016. The spousal study had a mean (SD) follow-up of 3.6 (0.9) years (median [IQR], 3.2 [2.9-4.5] years). Statistical analysis was performed from July to November 2022.

EXPOSURE: Spousal diabetes status was diagnosed according to the 2010 American Diabetes Association (ADA) criteria. All participants provided detailed clinical, sociodemographic, and lifestyle information included in cardiovascular health metrics.

MAIN OUTCOMES AND MEASURES: Incident diabetes, diagnosed according to 2010 ADA criteria.

RESULTS: Overall, 34 821 individuals were included, with a mean (SD) age of 56.4 (8.3) years and 16 699 (48.0%) male participants. Spousal diabetes diagnosis was associated with an increased risk of incident diabetes (hazard ratio [HR], 1.15; 95% CI, 1.03-1.30). Furthermore, participants whose spouses had uncontrolled glycated hemoglobin (HbA1c) had a higher risk of diabetes (HR, 1.20; 95% CI, 1.04-1.39) but the risk of diabetes in participants whose spouses had controlled HbA1c did not increase significantly (HR, 1.10; 95% CI, 0.92-1.30). Moreover, this association varied with composite cardiovascular health status. Diabetes risk in individuals who had poor cardiovascular health status (<4 ICVHMs) was associated with spousal diabetes status (3 ICVHMs: HR, 1.50; 95% CI, 1.15-1.97), while diabetes risk in individuals who had intermediate to ideal cardiovascular health status (≥4 ICVHMs) was not associated with it (4 ICVHMs: HR, 1.01; 95% CI, 0.69-1.50).

CONCLUSIONS AND RELEVANCE: In this study, spousal diabetes diagnosis with uncontrolled HbA1c level was associated with increased risk of incident diabetes, but strict management of spousal HbA1c level and improving ICVHM profiles may attenuate the association of spousal diabetes status with diabetes risk. These findings suggest the potential benefit of couple-based lifestyle or pharmaceutical interventions for diabetes.

PMID:37351887 | DOI:10.1001/jamanetworkopen.2023.19038

JAMA Netw Open. 2023 Jun 1;6(6):e2319591. doi: 10.1001/jamanetworkopen.2023.19591.

ABSTRACT

IMPORTANCE: The unmet needs regarding symptom management of psychological distress among patients with breast cancer must be addressed. However, little evidence exists on effective interventions, such as nurse navigation.

OBJECTIVE: To compare the long-term effects of the REBECCA (Rehabilitation After Breast Cancer) nurse navigation intervention vs usual care in patients with breast cancer who were psychologically vulnerable.

DESIGN, SETTING, AND PARTICIPANTS: This parallel randomized clinical trial recruited and evaluated for eligibility adult female patients with newly diagnosed breast cancer and symptoms of psychological distress (distress score of ≥7 points on Distress Thermometer) at Rigshospitalet in Copenhagen, Denmark, from August 2017 to October 2019. This study continued the work of a pilot study, extending the follow-up to 18 months. Patients who met the inclusion criteria were randomized to either standard care or the REBECCA intervention. Intention-to-treat analyses were performed from June 2021 to October 2022.

INTERVENTIONS: Patients who were randomized to the REBECCA intervention received nurse navigation and symptom screening as well as standard care. Standard care included regular treatment, nurse support at chemotherapy and radiotherapy appointments, and municipality-based rehabilitation.

MAIN OUTCOMES AND MEASURES: The primary outcome was distress, as measured using the Distress Thermometer. The secondary outcomes included symptoms of anxiety, symptoms of depression, breast cancer-specific health-related quality of life, fear of recurrence, sleep, cognitive function, patient activation, pain, health behavior, body mass index, and need for support. Long-term effects at 6, 12, and 18 months were examined using mixed-effect models, adjusting for randomization strata of age and treatment modality.

RESULTS: A total of 309 female patients were included in the analysis, with 153 patients randomized to the standard care group and 156 patients randomized to the REBECCA intervention group. Mean (SD) age was 56 (11) years with only small between-group differences. Patients receiving the REBECCA intervention compared with standard care had reduced (although not significant) symptoms of distress, especially at the 12-month follow-up (estimated effect = -0.51 [95% CI, -1.05 to 0.04]; effect size [ES] = -0.49). Significant effects were seen for symptoms of depression at 6 months (estimated effect = -1.39 [95% CI, -2.33 to -0.44]; ES = -0.27), and breast cancer-specific health-related quality of life at 12 months (estimated effect = 4.03 [95% CI, 1.28- 6.77]; ES = 0.31). Nonsignificant reductions were seen for symptoms of anxiety at 6 months (estimated effect = -1.00 [95% CI, -1.95 to -0.06]; ES = -0.21) and 12 months (estimated effect = -1.01 [95% CI, -1.97 to -0.04]; ES = -0.21), and a nonsignificant increase was seen for patient activation at 18 months (estimated effect = 3.52 [95% CI, -0.09 to 7.12]; ES = 0.25). Stronger intervention effects were observed for younger age, low patient activation, less education, and low social support.

CONCLUSIONS AND RELEVANCE: Results of this study indicate that patients with breast cancer who were psychologically vulnerable (ie, having moderate to high psychological distress) did not experience significant reduction in distress with nurse navigation. Further research is needed to develop the intervention’s framework and investigate its potential use in clinical practice.

TRIAL REGISTRATION: ClinicalTrials.gov Identifier: NCT03254875.

PMID:37351885 | DOI:10.1001/jamanetworkopen.2023.19591

JAMA Netw Open. 2023 Jun 1;6(6):e2319602. doi: 10.1001/jamanetworkopen.2023.19602.

ABSTRACT

IMPORTANCE: Nicotine dependence increases the risk of persistent smoking, which is the leading preventable cause of morbidity and death. However, evidence regarding the associations of nicotine dependence with age, psychiatric conditions, and sociodemographic characteristics is limited.

OBJECTIVE: To assess whether and how nicotine dependence among US adults with cigarette use varies by year, age, psychiatric comorbidities, and sociodemographic characteristics.

DESIGN, SETTING, AND PARTICIPANTS: This exploratory serial cross-sectional study used data from 152 354 US community-dwelling individuals 18 years or older who participated in the 2006-2019 National Surveys on Drug Use and Health. Data analyses were conducted from January 15 to February 15, 2023.

EXPOSURE: Past-month cigarette use. Past-year major depressive episode (MDE) and/or substance use disorder (SUD) based on criteria from the Diagnostic and Statistical Manual of Mental Disorders (Fourth Edition), Text Revision.

MAIN OUTCOMES AND MEASURES: Past-month nicotine dependence based on criteria from the Nicotine Dependence Syndrome Scale or the Fagerström Test of Nicotine Dependence.

RESULTS: Among 152 354 adults with past-month cigarette use (54.1% male; 40.2% aged 18-34 years; 29.0% aged 35-49 years; 69.8% non-Hispanic White), the adjusted prevalence of nicotine dependence decreased from 59.52% (95% CI, 57.93%-61.10%) in 2006 to 56.00% (95% CI, 54.38%-57.60%) in 2019 (average annual percentage change [AAPC], -0.4%; 95% CI, -0.5% to -0.4%; P < .001) and among each examined age group, except for stability among those aged 18 to 25 years (AAPC, -0.5%; 95% CI, -1.4% to 0.4%; P = .27). Compared with those 50 years and older with past-month cigarette smoking, the adjusted prevalence of nicotine dependence among those aged 18 to 49 years was 32% lower for those aged 18 to 25 years (adjusted risk ratio [ARR], 0.68; 95% CI, 0.66-0.70), 18% lower for those aged 26 to 34 years (ARR, 0.82; 95% CI, 0.80-0.84), and 6% lower for those aged 35 to 49 years (ARR, 0.94; 95% CI, 0.92-0.96). The adjusted prevalence of nicotine dependence varied by age, MDE and/or SUD status, and sociodemographic characteristics. For example, by 2019, prevalence was 41.27% (95% CI, 39.21%-43.37%) among those aged 18 to 25 years and 64.43% (95% CI, 60.98%-67.74%) among those 50 years and older. Differences in nicotine dependence prevalence between those with co-occurring MDE and SUD and those without both conditions were more than 2 times larger for those 50 years and older vs those aged 18 to 49 years (eg, ages ≥50 years vs 18-25 years: 18.69 percentage point difference [83.32% vs 64.63%] vs 7.67 percentage point difference [48.88% vs 41.21%]; P < .001).

CONCLUSIONS AND RELEVANCE: In this cross-sectional study, there were significant reductions in nicotine dependence prevalence from 2006 to 2019 among US adults with cigarette use and all examined subgroups 26 years and older. Adults 50 years and older (especially those with MDE and/or SUD) had the highest nicotine dependence prevalence compared with other age groups, highlighting the importance of assisting with smoking cessation efforts and addressing nicotine dependence for this older population. Evidence-based tobacco cessation strategies tailored to age and comorbidities are needed.

PMID:37351884 | DOI:10.1001/jamanetworkopen.2023.19602

Cancer Epidemiol Biomarkers Prev. 2023 Jun 23:EPI-22-0801. doi: 10.1158/1055-9965.EPI-22-0801. Online ahead of print.

ABSTRACT

BACKGROUND: Acidic urine pH is associated with rapid hydrolysis of N-glucuronide conjugates of aromatic amines into metabolites that may undergo metabolism in the bladder lumen to form mutagenic DNA adducts. We previously reported that consistently acidic urine was associated with increased bladder cancer risk in a hospital-based case-control study in Spain. Here, we conducted a separate study in northern New England to replicate these findings.

METHODS: In a large, population-based case-control study conducted in Maine, New Hampshire, and Vermont, we examined bladder cancer risk in relation to consistent urine pH, measured twice daily by participants over four consecutive days using dipsticks. In parallel, we collected spot urine samples and conducted laboratory measurements of urinary acidity using a pH meter. Unconditional logistic regression was used to estimate associations, adjusting for age, gender, race, Hispanic status, and state. Analyses were further stratified by smoking status.

RESULTS: Among 616 urothelial carcinoma cases and 897 controls, urine pH consistently≤6.0 was associated with increased bladder cancer risk (Odds Ratio(OR)=1.27; 95% Confidence Interval(CI)=1.02-1.57), with the effect limited to ever-smokers. These findings were supported by analyses of a spot urine, with statistically significant exposure-response relationships for bladder cancer risk overall (p-trend=5.1×10-3) and among ever-smokers (p-trend=1.2×10-3).

CONCLUSIONS: Consistent with a previous study in Spain, our findings suggest that acidic urine pH is associated with increased bladder cancer risk.

IMPACT: Our findings align with experimental results showing that acidic urine pH, which is partly modifiable by lifestyle factors, is linked to hydrolysis of acid-labile conjugates of carcinogenic aromatic amines.

PMID:37351876 | DOI:10.1158/1055-9965.EPI-22-0801