Emergency Utilization and Trends in a Community Dental Clinic in Northern Manhattan: A Retrospective Study

2020 ◽  
Vol 44 (3) ◽  
pp. 135-141
Author(s):  
Evan Cyrkin ◽  
Aaron Myers ◽  
Jaffer Shariff ◽  
Richard Yoon
Keyword(s):  
New York ◽  
Medical Center ◽  
Columbia University ◽  
Dental Clinic ◽  
Chi Square ◽  
Design Data ◽  
Frequency Distributions ◽  
Chi Square Test ◽  
Dental Records ◽  
First Time

Purpose: To evaluate utilization and trends associated with patients who presented with emergencies at a community dental clinic at Columbia University Medical Center, New York, NY. Study design: Data from deidentified dental records of patients aged 0–12 years old who presented as emergencies for oral and dental reasons for 2012, 2013, and 2014 were collected. Variables analyzed included demographic information, oral diagnosis, and current health status. Frequency distributions analysis, chi-square test and analysis of variance (ANOVA) test were performed using Stata 13.0. Results: There were 4,328 dental and oral-related emergencies with a mean age of 6-years-old. Approximately 50% were females, 71% were Hispanic, and 90% had Medicaid managed care. Most emergencies (49%) were caries-related, 41% were considered atraumatic in nature, and approximately 10% were traumatic. About 10% of patients presented with comorbidities and 37% were either first-time patients or patients that presented exclusively for emergencies. Acute tooth pain (45%) caused by dental caries was the most common chief complaint. The trends for emergency presentations showed a significant decrease (p<.001) between years 2012–2014 for caries-related visits and a significant increase (p<.001) between 2012–2013 and 2012–2014 for atraumatic visits. Conclusions: Caries-related dental diagnoses were more common than trauma-related diagnoses. The most common caries-related diagnosis was pulp necrosis for both primary and permanent dentitions while the most common traumarelated diagnosis was subluxation for the primary dentition and enamel-dentin fracture for the permanent dentition.

Number and location of draining veins in pediatric arteriovenous malformations: association with hemorrhage

2014 ◽  
Vol 14 (5) ◽  
pp. 538-545 ◽  
Author(s):  
Christopher P. Kellner ◽  
Michael M. McDowell ◽  
Michelle Q. Phan ◽  
E. Sander Connolly ◽  
Sean D. Lavine ◽  
...  
Keyword(s):  
Arteriovenous Malformations ◽  
Medical Center ◽  
Venous Drainage ◽  
Patient Characteristics ◽  
Columbia University ◽  
Chi Square ◽  
Chi Square Test ◽  
Gcs Score ◽  
Risk Of Hemorrhage ◽  
The Impact

Object The significance of draining vein anatomy is poorly defined in pediatric arteriovenous malformations (AVMs). In adult cohorts, the presence of fewer veins has been shown to lead to an increased rate of hemorrhage, but this phenomenon has not yet been studied in pediatric AVMs. This report analyzes the impact of draining vein anatomy on presentation and outcome in a large series of pediatric AVMs. Methods Eighty-five pediatric patients with AVMs were treated at the Columbia University Medical Center between 1991 and 2012. Charts were retrospectively reviewed for patient characteristics, clinical course, neurological outcome, and AVM angioarchitectural features identified on the angiogram performed at presentation. Univariate analyses were performed using chi-square test and ANOVA when appropriate; multivariate analysis was performed using logistic regression. Results Four patients were excluded due to incomplete records. Twenty-seven patients had 2 or 3 draining veins; 12 (44.4%) of these patients suffered from hemorrhage prior to surgery. Fifty-four patients had 1 draining vein; 39 (72.2%) of these 54 suffered from hemorrhage. Independent predictors of hemorrhage included the presence of a single draining vein (p = 0.04) and deep venous drainage (p = 0.02). Good outcome (modified Rankin Scale [mRS] score < 3) on discharge was found to be associated with higher admission Glasgow Coma Scale (GCS) scores (p = 0.0001, OR 0.638, 95% CI 0.40–0.93). Poor outcome (mRS score > 2) on discharge was found to be associated with deep venous drainage (p = 0.04, OR 4.68, 95% CI 1.1–19.98). A higher admission GCS score was associated with a lower discharge mRS score (p = 0.0003, OR 0.6, 95% CI 0.46–0.79), and the presence of a single draining vein was associated with a lower mRS score on long-term follow-up (p = 0.04, OR 0.18, 95% CI 0.032–0.99). Conclusions The authors' data suggest that the presence of a single draining vein or deep venous drainage plays a role in hemorrhage risk and ultimate outcome in pediatric AVMs. Small AVMs with a single or deep draining vein may have the highest risk of hemorrhage.

scholarly journals Who spends and who does not: Clustering visitors at a national arts festival

2011 ◽  
Vol 42 (1) ◽  
pp. 9-16 ◽  
Author(s):  
M. Saayman ◽  
A. Saayman ◽  
E. Slabbert
Keyword(s):  
South Africa ◽  
Literature Review ◽  
Marketing Strategy ◽  
Chi Square ◽  
Ticket Sales ◽  
Arts Festivals ◽  
The Arts ◽  
Chi Square Test ◽  
Arts Festival ◽  
First Time

The Grahamstown National Arts Festival is the oldest National Arts Festival in South Africa and was founded in 1974. This celebration of the arts takes place over a period of eleven days with the main festival running over eight days, which also makes it the longest (in terms of number of days) arts festival in the country. The literature review revealed that high spenders at arts festivals are also the visitors who buy the most show tickets. The success of these events is determined by ticket sales and not necessarily by the number of visitors. Therefore, the purpose of this paper is to determine who the high spenders at the Grahamstown National Arts Festival are. Data obtained during the festival in 2008 by means of a questionnaire survey (N=446) was statistically analysed by means of K-means clustering, Pearson‟s chi-square test and ANOVAs. Results indicated two clusters, namely high and low spenders and can assist festival organisers in developing a more focused marketing strategy and festival programme. This was the first time that K-means clustering was applied to festival data in South Africa.

Trend in Prevalence of Human T-Lymphotropic Virus Type-1 (HTLV-1) Infection in Japanese Blood Donors, Nagasaki, 1999 to 2006.

Blood ◽  
2007 ◽  
Vol 110 (11) ◽  
pp. 2911-2911
Author(s):  
Masako Iwanaga ◽  
Shin Chiyoda ◽  
Eisuke Kusaba ◽  
Shimeru Kamihira ◽  
Keyword(s):  
Blood Donors ◽  
Secular Trend ◽  
Chi Square ◽  
T Lymphotropic Virus ◽  
Specific Analysis ◽  
Chi Square Test ◽  
First Time ◽  
Virus Carrier ◽  
Virus Screening

Abstract To evaluate time-trend of HTLV-1 prevalence and the effect of preventative measure against the viral transmission are important in the virus endemic regions. In Nagasaki, Japan, an endemic area of HTLV-1, a routine serological virus screening for blood donors and a prefecture-wide intervention project (the ATL Prevention Program; APP) to prevent milk-borne transmission for the virus carrier mothers have been conducted since 1986 and 1987, respectively. However, the effects of both projects on the virus seroprevalence have not been well evaluated. In this study, we conducted trend analyses of age-specific, birth-year-specific, and period-specific seroprevalence of HTLV-1 for first-time blood donors who donated between January 1999 and December 2006. Among 55668 first-time donors (age at donation; 16–65 years, birth year; 1934–1990), 718 were test positive for HTLV-1, indicating that the overall seroprevalence was1.29% (95%CI, 1.20–1.39). Prevalence was significantly higher in women than men (1.53% vs. 1.13%; OR; 1.36, 95%CI; 1.17–1.57). Seroprevalence increased significantly with increasing age at donation from 0.70% at 16–25 years to 7.34% at over 56 years (Chi-square test, P < 0.0001). The annual prevalence was 1.32 in 1999, 1.31 in 2002, and 1.37 in 2006, indicating that there was no significant secular trend during 1999–2006 (P for trend=0.99). In analyses by age at donation, trends of HTLV-1 prevalence significantly declined among age over 56 years (P for trend=0.02) and age 16–25 years (P for trend=0.0007), whereas in birth-year-specific analyses, there was no apparent change of the prevalence over time, except in birth year 1981–90 group in which the prevalence declined from 1.22% in 1999 to 0.44% in 2006 (P for trend < 0.0001). In analyses for limited birth year from 1985 to 1990, the seroprevalence declined from 0.75% in birth year 1985–86 group, 0.31% in 1987–88 group, to zero% in 1989–90 group (P for trend =0.0002). HTLV-1 seroprevalence was significantly lower among donors born in 1987–90 (after APP) than 1985–86 (before APP). These results indicate that a birth-year-specific analysis for HTLV-1 prevalence may be appropriate to evaluate secular trend since the virus mostly transmit during infancy, and that a prefecture-wide intervention, the refraining from breast-feeding by the virus carrier mothers, contributes a declining HTLV-1 seroprevalence in our region.

Small-Bowel Allograft Biopsies in the Management of Small-Intestinal and Multivisceral Transplant Recipients: Histopathologic Review and Clinical Correlations

2012 ◽  
Vol 136 (7) ◽  
pp. 761-771 ◽  
Author(s):  
Helen Remotti ◽  
Sukanya Subramanian ◽  
Mercedes Martinez ◽  
Tomoaki Kato ◽  
Margret S. Magid
Keyword(s):  
New York ◽  
Small Bowel ◽  
Clinical Laboratory ◽  
Medical Center ◽  
Small Bowel Transplantation ◽  
Intestinal Failure ◽  
Lymphoproliferative Disease ◽  
Close Monitoring ◽  
Columbia University ◽  
Barr Virus

Context.—Intestinal transplant has become a standard treatment option in the management of patients with irreversible intestinal failure. The histologic evaluation of small-bowel allograft biopsy specimens plays a central role in assessing the integrity of the graft. It is essential for the management of acute cellular and chronic rejection; detection of infections, particularly with respect to specific viruses (cytomegalovirus, adenovirus, Epstein-Barr virus); and immunosuppression-related lymphoproliferative disease. Objective.—To provide a comprehensive review of the literature and illustrate key histologic findings in small-bowel biopsy specimen evaluation of patients with small-bowel or multivisceral transplants. Data Sources.—Literature review using PubMed (US National Library of Medicine) and data obtained from national and international transplant registries in addition to case material at Columbia University, Presbyterian Hospital, and Mount Sinai Medical Center, New York, New York. Conclusions.—Key to the success of small-bowel transplantation and multivisceral transplantation are the close monitoring and appropriate clinical management of patients in the posttransplant period, requiring coordinated input from all members of the transplant team with the integration of clinical, laboratory, and histopathologic parameters.

A field test of the accuracy of the Barr and Stroud Type FP-12 optical dendrometer

1971 ◽  
Vol 47 (2) ◽  
pp. 69-74 ◽  
Author(s):  
John F. Bell ◽  
William A. Groman
Keyword(s):  
Field Test ◽  
Volume Growth ◽  
Douglas Fir ◽  
Repeated Measurements ◽  
Field Conditions ◽  
Extended Time ◽  
Chi Square ◽  
Standing Trees ◽  
Chi Square Test ◽  
First Time

Trees in a 55-year-old stand of Douglas-fir were measured with a Barr and Stroud Type FP-12 dendrometer while standing, then measured with tape and caliper after they were felled. The chi-square test of accuracy for diameters, whether determined according to size, elevation, or distance, fell within a range from ±0.222 to ±0.298 inch, and percentage accuracies varied from ±2.12 to ±3.25. The chi-square test of accuracy for stem lengths decreased from ±0.272 foot (±0.991 percent) at an average elevation of 23.30 feet for an 11.40-foot segment to ±0.782 foot (3.96 percent) for a 14.22-foot average segment at an average elevation of 62.91 feet.This study indicates that upper-stem diameters and segment lengths determined by the Barr and Stroud optical dendrometer are highly accurate under field conditions. Thus, the optical dendrometer provides the forester with a means of eliminating tree-volume tables. Results suggest that, for the first time, volume growth of the upper stem can be accurately determined on standing trees by making repeated measurements over an extended time.

Sign in / Sign up

Export Citation Format

Share Document