scholarly journals Histological types and age distribution of lung cancer operated patients over a 20-year period: A pathohistological based study

2011 ◽  
Vol 139 (9-10) ◽  
pp. 619-624 ◽  
Author(s):  
Jelena Stojsic ◽  
Tatjana Adzic ◽  
Dragana Maric ◽  
Dragan Subotic ◽  
Ivan Milovanovic ◽  
...  
Keyword(s):  
Lung Cancer ◽  
Cell Cancer ◽  
Age Distribution ◽  
Age Groups ◽  
Histological Type ◽  
Age Group ◽  
Chi Square ◽  
Lung Tumours ◽  
Lung Cancer Patients ◽  
Histological Types

Introduction. Lung cancer is the leading cause of death from malignancy in Serbia. Objective. This is a retrospective analysis of lung cancer epidemiological changes regarding to its histological type and patients? age of both genders. Data were based on surgically treated lung cancer patients from 1985 to 2005. Methods. Data were collected from 972 pathohistological reports of operated patients of both genders divided into age groups. Histological types of lung cancer were distributed in four major groups: squamous cell cancer (SCC), adenocarcinoma (AC), small cell cancer (SCLC) and other rare histological types. Both genders together and separately were analysed. Chi-square with the level of significance p<0.05 and chi-square test for trends were used as statistical methods. Results. SCC predominated in both genders; in 44.7% females and 68.0% males. AC was less frequently diagnosed (21.8%) than SCC (64.0%) in both genders and all age groups. The most frequently operated patients were aged between 51 and 60 years (36.6%) with SCC and AC predominance. Three patients with SCLC were operated in 61-70 age-group. In age-group up to 30 years, three (0.5%) patients were operated on for SCC and other rare lung tumours, respectively. Predominance of other rare lung tumours was established in 51-60 age-group, 25% of patients of both genders. Conclusion. SCC is the most frequent histological type of lung cancer found in all age groups and in both genders of surgically treated patients.

scholarly journals Survival in a cohort of patients with lung cancer: the role of age and gender in prognosis

2017 ◽  
Vol 43 (6) ◽  
pp. 431-436 ◽  
Author(s):  
Juliana Pereira Franceschini ◽  
Sérgio Jamnik ◽  
Ilka Lopes Santoro
Keyword(s):  
Lung Cancer ◽  
Age Distribution ◽  
Age Groups ◽  
Rank Test ◽  
Age Group ◽  
Tertiary Referral Hospital ◽  
Kaplan Meier ◽  
Stage Disease ◽  
And Gender ◽  
Disease Stages

ABSTRACT Objective: To determine the demographic and clinical characteristics of patients with non-small cell lung cancer (NSCLC), as well as their disease course, by age group and gender. Methods: This was a retrospective cohort study of patients diagnosed with NSCLC from 2000 to 2012 and followed until July 2015 in a tertiary referral hospital in the city of São Paulo, Brazil. Based on the 25th and 75th percentiles of the age distribution, patients were stratified into three age groups: < 55 years; ≥ 55 and < 72 years; and ≥ 72 years. Survival time was evaluated during the follow-up period of the study. Functions of overall and gender-specific survival stratified by age groups (event: all-cause mortality) were calculated using the Kaplan-Meier method. Differences among survival curves were assessed via the log-rank test. Results: We included 790 patients with the following age distribution: < 55 years, 165 patients; ≥ 55 and < 72 years, 423; and ≥ 72 years, 202. In the entire sample, there were 493 men (62.4%). Adenocarcinoma was the most common histological pattern in the < 72-year age groups; 575 patients (73%) presented with advanced disease (stages IIIB-IV). The median 5-year survival was 12 months (95% CI: 4-46 months), with no significant differences among the age groups studied. Conclusions: NSCLC remains more common in men, although we found an increase in the proportion of the disease in women in the < 55-year age group. Adenocarcinoma predominated in women. In men, squamous cell carcinoma predominated in the ≥ 72-year age group. Most patients presented with advanced-stage disease at diagnosis. There were no statistical differences in survival between genders or among age groups.

Global Patterns of Lung Cancer Incidence

2018 ◽  
Vol 2 (2) ◽  
pp. 01-03
Author(s):  
Saritha Garrepalli
Keyword(s):  
Lung Cancer ◽  
Squamous Cell Carcinoma ◽  
Cell Carcinoma ◽  
Cancer Patients ◽  
Squamous Cell ◽  
Middle Age ◽  
Age Distribution ◽  
Small Cell ◽  
Age Group ◽  
Lung Cancer Patients

Introduction It is well known that smoking is injurious to health which causes lung cancer. Although not all smokers develop lung cancer, fraction of lifelong non-smokers will die from lung cancer. Lung cancer is a major cause of cancer related death in developed countries with extremely poor overall survival rate. In present study we set out epidemiological pattern with clinical profile of lung cancer patients in northern india population. Aim:We evaluate the effect of smoking with age distribution on histopathology in lung cancer patients. Material & Methods: We enrolled 218 patients after confirmation of histopathology and also collected demographic data. Results: Out of 218 patients of lung cancer, having median age of 56 years, we found 149 (68.3%) were smokers and 69 (31.6%) were nonsmokers. In histopathology 54.1% patients had squamous cell carcinoma, 29.2% adenocarcinoma, 12.4% Mixed cell, 3.7% Small cell. We also found 63.1% smoker to have squamous cell carcinoma and 50.7% non-smoker have adenocarcinoma.In our study middle age group patients were more frequent in smoking group. While higher age group patients has squamous cell and middle group have adenocarcinoma. Therefore patients group with high smoking are found to develop have more risk to develop small cell carcinoma rather than in case of non-smoker higher age groups have sqamous cell carcinoma type. Conclusion: In this study we found middle age group subjects of smoker having more squamous cell and nonsmoker having adenocarcinoma.

scholarly journals IMAGING OF LUNG CANCER STAGING USING ADVANCED CT SCAN TECHNIQUES

2020 ◽  
Vol 8 (3) ◽  
pp. 22-28
Author(s):  
Maha Esmeal Ahmed ◽  
Mwahib Sid Ahmed Aldosh
Keyword(s):  
Computed Tomography ◽  
Lung Cancer ◽  
Ct Scan ◽  
Cancer Patients ◽  
Critical Role ◽  
Cell Cancer ◽  
Small Cell ◽  
Management Approach ◽  
Age Group ◽  
Lung Cancer Patients

Background: Lung cancer is one of leading death worldwide, it begins when cells in the lung grow out of control and formed mass or nodules which classified in two known major forms, non-small cell and small cell cancer. The accurate assessment of the disease extent is important in management approach and Computed tomography imaging in nodal staging remains the important tool for lung cancer diagnosis, particularly when assessing intra and extra thoracic spread of lung cancer. Objective: This is a quantitative cross-sectional study conducted in Sudanese lung cancer patients in period from November 2019 to February 2020 in Khartoum state hospital. The main aim of the study was to evaluate staging of lung cancer using computed tomography technology. Method: A group of 100 participants patients were selected randomly in different gender and in age group between (30-80) years old. The inclusion limited to patients diagnosed with lung cancer by computed tomography techniques and the normal cases and other abnormalities was being excluded. The data were collected using a special collection sheet and the data statistical analyzed using SPSS program. Result: The outcomes of this study showed that patients in age group between (60-70) years old do not have lung cancer in the first stage, while lung cancer in the second stage occurred in 10 patients only with 10 % percentage. The third stage is the most common type with a high incidence rate which occurred in 90 patients with 90 %. Percent. Conclusion: Advance imaging with CT scan techniques play a critical role in the diagnosis and management of lung cancer patients adding to accurately describing the radiological extent of the disease. Moreover, the important to understand the principles of staging description and their impact on treatment decisions.

scholarly journals Estimating effective infection fatality rates during the course of the COVID-19 pandemic in Germany

2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Christian Staerk ◽  
Tobias Wistuba ◽  
Andreas Mayr
Keyword(s):  
Age Distribution ◽  
Age Groups ◽  
Case Fatality ◽  
Time Dependent ◽  
Temporary Increase ◽  
International Studies ◽  
Age Group ◽  
Fatality Rate ◽  
Substantial Fraction ◽  
Second Wave

Abstract Background The infection fatality rate (IFR) of the Coronavirus Disease 2019 (COVID-19) is one of the most discussed figures in the context of this pandemic. In contrast to the case fatality rate (CFR), the IFR depends on the total number of infected individuals – not just on the number of confirmed cases. In order to estimate the IFR, several seroprevalence studies have been or are currently conducted. Methods Using German COVID-19 surveillance data and age-group specific IFR estimates from multiple international studies, this work investigates time-dependent variations in effective IFR over the course of the pandemic. Three different methods for estimating (effective) IFRs are presented: (a) population-averaged IFRs based on the assumption that the infection risk is independent of age and time, (b) effective IFRs based on the assumption that the age distribution of confirmed cases approximately reflects the age distribution of infected individuals, and (c) effective IFRs accounting for age- and time-dependent dark figures of infections. Results Effective IFRs in Germany are estimated to vary over time, as the age distributions of confirmed cases and estimated infections are changing during the course of the pandemic. In particular during the first and second waves of infections in spring and autumn/winter 2020, there has been a pronounced shift in the age distribution of confirmed cases towards older age groups, resulting in larger effective IFR estimates. The temporary increase in effective IFR during the first wave is estimated to be smaller but still remains when adjusting for age- and time-dependent dark figures. A comparison of effective IFRs with observed CFRs indicates that a substantial fraction of the time-dependent variability in observed mortality can be explained by changes in the age distribution of infections. Furthermore, a vanishing gap between effective IFRs and observed CFRs is apparent after the first infection wave, while an increasing gap can be observed during the second wave. Conclusions The development of estimated effective IFR and observed CFR reflects the changing age distribution of infections over the course of the COVID-19 pandemic in Germany. Further research is warranted to obtain timely age-stratified IFR estimates, particularly in light of new variants of the virus.

scholarly journals Predictive Value of Technical Throwing Skills on Nomination Status in Youth and Long-Term Career Attainment in Handball

2022 ◽  
Vol 8 (1) ◽  
Author(s):  
Till Koopmann ◽  
Franziska Lath ◽  
Dirk Büsch ◽  
Jörg Schorer
Keyword(s):  
Logistic Regression ◽  
National Level ◽  
Age Groups ◽  
Age Group ◽  
Regression Analyses ◽  
Chi Square ◽  
Career Attainment ◽  
Future Performance ◽  
Younger Age

Abstract Background Research on talent in sports aims to identify predictors of future performance. This study retrospectively investigated 1) relationships between young handball field players’ technical throwing skills and (a) their potential nomination to youth national teams and (b) their long-term career attainment 10 years later, and 2) associations between nomination status and career attainment. Results Results from retrospectively predicting nomination status and career attainment using logistic regression analyses show that technical throwing skills were partly able to explain players’ nomination status (Nagelkerke R2: females 9.2%, males 13.1%) and career attainment (Nagelkerke R2: 9.8% for female players). Here, variables throwing velocity and time on exercise showed statistically significant effects. In addition, nomination status and career attainment were shown to be associated using chi-square tests (w of .37 and .23 for female and male players, respectively) and nomination status as a predictor increased the prediction of career attainment remarkably (Nagelkerke R2: females 20.3%, males 12.7%). Conclusions Given these results, basic technical throwing skills may serve rather as a prerequisite in this age group on national level, emphasizing its importance already on lower levels and in younger age groups. Furthermore, advantages from entering the national TID system early especially for females are discussed.

scholarly journals QT Interval Changes in Children With Febrile Convulsion Comparing With Healthy

2021 ◽  
pp. 1-15
Author(s):  
Alireza Teimouri ◽  
◽  
Noor Mohammad Noori ◽  
Ali Khajeh ◽  
◽  
...  
Keyword(s):  
Qt Interval ◽  
Case Control Study ◽  
Age Groups ◽  
Febrile Convulsion ◽  
Case Control ◽  
Healthy Children ◽  
Age Group ◽  
Chi Square ◽  
Pediatric Cardiologist ◽  
Control Study

A temperature-related seizure is a febrile seizure that affects the QT interval. The purpose of this study was to evaluate the changes in the QT interval caused by febrile convulsion compared with healthy children. Method This case-control study considered the distribution of 180 children equally shared between patients and controls. The study was conducted at the "Ali Ebne Abi Talib" Hospital in Zahedan, Iran. The disease diagnosed and confirmed based on standard definitions of febrile convulsion. QT interval measured by ECG and interpreted by a pediatric cardiologist and collected data were analyzed with SPSS 19 considering 0.05 as significant error. Results Among the ECG parameters, HR, R in aVL, S in V3, LVM, QTd, QTc and QTcd were significantly different in children with febrile convulsion compared to the peers. From those who had abnormal QTd, FC children were more frequented but not significant (CHI SQUARE=1.053, p=0.248), when children with FC were more in abnormality regarding QTc (CHI SQUARE=13.032, p<0.001) and QTcd (CHI SQUARE=21.6, P<0.001) significantly. In children with FC, those who were aged less than 12 months, had the highest level of HR but not significant (CHI SQUARE=4.59, p=0.101). Similar trends occurred for R in aVL and S in V3 that were higher in the age group >24 months (p>0.05). LVM had the highest value in the age group of >24 months significantly (CHI SQUARE= 52.674, P<0.001) and the other QT parameters were same in Fc children with different age groups (P>0.05). Conclusion From the study concluded that dispersion corrected QT, corrected QT and dispersion QT changed significantly in children with febrile convulsion in comparing with the healthy children but with constant values in children with FC in different age groups.

Risk Factors, Prognosis and A New Nomogram for Predicting Cancer-Specific Survival Among Lung Cancer Patients with Brain Metastasis: A Retrospective Study Based on SEER

2021 ◽  
Author(s):  
Guihong Zhang ◽  
Yue Jiao Liu ◽  
Ming De Ji
Keyword(s):  
Risk Factors ◽  
Lung Cancer ◽  
Prognostic Factors ◽  
Brain Metastasis ◽  
Cancer Patients ◽  
Primary Site ◽  
Histological Type ◽  
Extracranial Metastasis ◽  
Cancer Specific Survival ◽  
Lung Cancer Patients

Abstract Purpose: A comprehensive population-based study on risk and prognostic factors of lung cancer with brain metastasis is lacking. Methods: 95191 patients diagnosed with lung cancer between 2010 and 2017 were collected from the Surveillance, Epidemiology and End Results (SEER) database. Patients were stratified by different variables. Multivariable logistic and Cox regression were applied to analyze the risk and prognostic factors of brain metastasis among lung cancer patients, respectively. The Fine and Gray’s competing risk regression model was performed to obtain prognostic factors associated with cancer-specific mortality.Results: Among the 95191 patients diagnosed with lung cancer, 10765 patients have brain metastasis, with a metastatic incidence of 11.31%. The primary site of tumor, residence type, age, histological type, race and extracranial metastasis were all independent risk factors of brain metastasis. Compared with other histological types, small cell lung cancer displayed a highest incidence of brain metastasis (16.62%). The median overall survival (OS) among lung cancer patients with brain metastasis was only 6.05 months. The primary site of tumor, median household income, age, histological type, race, gender and extracranial metastasis were all associated with the prognosis of brain metastasis. Patients with squamous cell carcinoma had the worst prognosis, the median OS was only 3.68 months. And our established new nomogram showed a good discriminative ability on predicting the probability of cancer-specific survival among patients with brain metastasis, the C-index was 0.61.Conclusion: Our study provided a deeper insight into the risk factors and prognosis of brain metastasis among lung cancer patients.

scholarly journals Dynamic Smile Visualization and Quantification in different age groups

2016 ◽  
Vol 06 (04) ◽  
pp. 32-38
Author(s):  
Harshitha V. ◽  
M.S. Ravi ◽  
Reshma Raveendran ◽  
Raed Saeed ◽  
Kiran Kumar C.
Keyword(s):  
Age Groups ◽  
T Test ◽  
Age Group ◽  
Chi Square ◽  
Video Clips ◽  
Younger Age ◽  
Chi Square Test ◽  
Buccal Corridor ◽  
Paired T Test ◽  
Two Age Groups

Abstract Aims and Objectives: To assess the posed and dynamic smile and to compare the various attributes of smile in frontal, oblique and sagittal dimensions, in two different age groups (10- 15years and 18-25 years). Materials and Methods: The posed and dynamic smile parameters were measured using digital video clips in 80 subjects of two different age groups (10-15years and 18-25 years). Total of 15 parameters were studied in 3 planes of space. The data was analysed using student`s t-test to compare smile parameters across the age groups, paired t-test was used to analyse the parameters of posed and unposed smile within the same age group and chi-square test was performed for the discrete data. Results: The present study revealed significant differences in dynamic smile parameters between the two age groups. The parameters like Philtrum height and Smile index are more in older age group whereas the buccal corridor was more in younger age group. Significant differences were also recorded in various parameters in both the groups when the posted smile is compared with that of the dynamic smile. Conclusion: In both the age groups, the dynamic and posed smile attributes are significantly different, except for buccal corridor and interlabial gap.

The changing face of cancer in the elderly—Only a demographic change?

2006 ◽  
Vol 24 (18_suppl) ◽  
pp. 18597-18597
Author(s):  
Y. Rottenberg ◽  
T. Peretz
Keyword(s):  
Breast Cancer ◽  
Prostate Cancer ◽  
Lung Cancer ◽  
Older Women ◽  
Age Groups ◽  
The Elderly ◽  
Age Group ◽  
Industrial Countries ◽  
Cancer Burden ◽  
Two Age Groups

18597 Background: In industrial countries, the cancer burden of the elderly is high and is increased. One reason is longer life expectancy. Increasing age standardized rates of cancer in this age group compared to younger groups may also explain this phenomenon. Methods: Two age groups were examined, above and below 65 years. Each age group was further divided into men and women. The age standardized rates for all cancers combined among the Jewish population in Israel were identified through the Israel Cancer Registry during the years 1973–2002. In addition, lung and colorectal cancers according to sexes, prostate cancer in men and breast cancer in women were examined. Results: Between the first 5 years of the study (1973–1977) and the last 5 years (1998–2002) the age standardized rates for all cancers combined were raised by about one third in the two age groups. In males, the overall change was higher in the older group (42% in men aged 65 years and older compared to 31% in men younger than 65). However, the rise in the younger group was more prominent in females (42% in women younger than 65 years compared to 33 % in women aged 65 and older). The most outstanding increase was in prostate cancer in men, but mainly in the younger group (176% in the older group and 368% in the younger group) followed by breast cancer in women, more prominent in the older group (64% in the older group and 50% in the younger group). In both sexes, more noticeable increases were noted in the older groups in colorectal cancer and in lung cancer. Between the years 1993–1997 and 1998–2002 shifts towards stabilization and even a decrease was noted in some of the cancers that were examined. In men aged 65 years and older rates for all cancers combined were decreased by 2.5%, among the specific tumors and a decrease was noted in lung cancer (6.7%) and prostate cancer (5.8%). The rates for all cancers combined among the older women were slightly decreasing (2.0%). No decrease was noted in the specific tumors in this group. Among the younger groups in both sexes, no decrease (defined >0.5%) was noted. Conclusions: These data argue against the hypothesis that the overall change in the cancer burden in the aged could be also explained by differences changes in the risk of developing cancer between these two age groups. No significant financial relationships to disclose.

Comparision of histologic distribution of RCC in young and older patients: Results from the SEER database.

2013 ◽  
Vol 31 (6_suppl) ◽  
pp. 419-419 ◽  
Author(s):  
Michael R. Daugherty ◽  
Stephen Blakely ◽  
Oleg Shapiro ◽  
Gennady Bratslavsky
Keyword(s):  
Renal Cell ◽  
Clear Cell ◽  
Collecting Duct ◽  
Cell Cancer ◽  
Age Groups ◽  
Genetic Mutations ◽  
Chi Square ◽  
Younger Patients ◽  
The Difference ◽  
Chi Square Analysis

419 Background: Renal cell cancer (RCC) incidence is relatively low in younger patients, encompassing 3-5% of all RCC tumors. These tumors tend to be due to hereditary syndromes and genetic mutations that predispose to cancer development. Patients with hereditary renal cancer (HRC) are at a higher risk of multiple tumors and bilateral disease. We hypothesize that there is a difference in histologic distribution in the younger patients and that the younger distribution contains more aggressive histologic subtypes. Methods: SEER 18-registries database was queried for all patients ≥20 years old that were surgically treated for renal cell carcinoma between the years 2001 and 2008. Patients with unknown race, grade, stage, or histology were excluded from the study. Histologies selected were clear cell, papillary, chromophobe, sarcomatoid, and collecting duct. Three cohorts were created with the ages 20-44, 45-64, and ≥65 year olds that contained 3,926, 19,661, and 16,323 patients respectively. Chi-square analysis was used to compare the histologic distributions between the cohorts. Results: There was no difference in the incidence of clear cell RCC between the three cohorts (p = 0.63). The histology distribution was not different in the 45-64 year olds compared to those ≥65 (p = 0.47). The non-clear cell histologies were different between the 3 age groups (p < 0.001). There were a larger percentage of patients in the younger patients that had chromophobe tumors compared to all non-clear cell histologies (p< 0.001). Conclusions: The difference in the non-clear cell histologic distribution between the groups is most likely due to genetic mutations predisposing these patients to chromophobe RCC. There has been limited data on HRCs, due in large part to its low incidence. Although the HRCs are known to have a most common histology, it is likely that this information is incomplete, as younger patients have undiagnosed genetic mutations that led to development of chromophobe tumors. [Table: see text]

Sign in / Sign up

Export Citation Format

Share Document