Longitudinal analysis versus cross-sectional analysis in assessing the factors influencing shoppers’ impulse purchase behavior – Do the store ambience and salesperson interactions really matter?

2021 ◽  
Vol 61 ◽  
pp. 102586
Author(s):  
Bharath Shashanka Katakam ◽  
Ramulu Bhukya ◽  
Raja Shekhar Bellamkonda ◽  
Nagaraj Samala
2020 ◽  
Vol 41 (Supplement_2) ◽  
Author(s):  
D Godoi Bernardes Da Silva ◽  
R Dias Santos ◽  
M Sommer Bittencourt ◽  
J.A.M Carvalho ◽  
M Franken ◽  
...  

Abstract Introduction The Finnish Diabetes Risk Score (FINDRISC) was developed in Europe to predict type 2 diabetes mellitus (T2DM) risk without need of laboratory tests. Small cross-sectional studies analyzed the association between RF with metabolic syndrome (MS) or hepatic steatosis (HS). Our objective was to test the association of FINDRISC with MS or HS, in a transversal and longitudinal way. Methods In 41,668 individuals (age 41.9±9.7 years; 30.8% women) who underwent health evaluation between 2008 and 2016 in a single centre in Brazil, we tested the transversal association between FINDRISC and MS or HS, in multivariate models. The same analyzes were performed longitudinally in non-diabetic subgroups, followed for 5±3 years, to test the predictive value of FINDRISC and the incidental risk of MS (n=10,075 individuals) or HS (n=7,097 individuals), using logistic regression. Models were adjusted for confounders such as sex, use of medications for dyslipidemia, smoking, and baseline plasma levels of glucose, creatinine and lipids. A receiver operating characteristic (ROC) curve was used to evaluate the discriminative and predictive values of FINDRISC for MS and HS. Results In the cross-sectional analysis, 2,252 (5%) individuals had MS and 14,176 (34%) HS. In the longitudinal analysis, there were 302 cases of incidental MS (2%) and 1,096 cases of HS (15%). FINDRISC was independently associated with MS and HS in the cross-sectional analysis (respectively, OR 1.27, 95% CI: 1.25–1.28, P<0.001; and OR 1.21, 95% CI: 1.20–1.22, P<0.001, per FINDRISC unit) and in longitudinal analysis (respectively, OR of 1.18, 95% CI: 1.15–1.21, P<0.001; and OR of 1.10, 95% CI: 1.08–1.11, P<0.001, per FINDRISC unit). In comparison with individuals with low FINDRISC, those with moderate, high and very high values showed significant and proportional increases of the 12 to 77 fold in the chance of current SM (P<0.001) and 3 to 10 fold in the chance of HS (P<0.001). During follow-up, these increases were 3 to 10 fold in the chance of incidental MS (P<0.001) and 1 to 3 fold in the chance of HS (P<0.001). The AUC from cross-sectional analysis for MS and HS were respectively 0.82 (95% CI 0.81–0.83) and 0.76 (95% CI 0.75–0.76), and in longitudinal analysis 0.73 (95% CI 0.70–0.76) and 0.63 (95% CI 0.61–0.65), respectively. Conclusion FINDRISC was associated with the presence and onset of MS and HS, but it predicted better metabolic syndrome risk than hepatic steatosis. Therefore, this simple, practical and low-cost score can be useful for population screening and identification of subgroups of individuals at higher risk future metabolic diseases. Funding Acknowledgement Type of funding source: None


2013 ◽  
Vol 3 (1) ◽  
pp. 1
Author(s):  
Tomoaki Kimura ◽  
Hiroshi Matsuo ◽  
Naoharu Iida ◽  
Yoshiteru Maki ◽  
Kiyoshi Suzuki

In Japan and other countries, complementary health practices based on lifestyle modification such as exercise, diet, art and culture, gardening, and biofield therapy, have received increasing attention. This study was conducted to demonstrate associations between perceived stress, quality of life (QOL), and these complementary health practices. Computer-assisted data collection was conducted with Japanese outpatients in 10 clinics. Participants completed questionnaires that measured socioeconomic status (SES) and frequencies of complementary health practices. Psychological stress was measured using the 10-Item Japanese version of the Perceived Stress Scale. QOL was measured using the 10-Item Mokichi Okada Association Quality of Life Questionnaire. Data were analyzed using linear regression modeling. Baseline data of 1480 participants were available for cross-sectional analysis and data of 318 participants were available at follow-up for longitudinal analysis. Gender differences were not observed in stress and QOL, but age was positively correlated with QOL, and negatively with stress. A multiple regression model adjusted for age, gender, and SES indicated weak associations between each health practice and QOL in the cross-sectional (β=0.14-0.28) and the longitudinal analysis (β=0.17-0.27). Moreover, negative associations between each health practice and stress varied from -0.08 to -0.18, with the exception of biofield therapy in the cross-sectional analysis. In the longitudinal analysis, associations varied from -0.13 to -0.27, but diet and biofield therapy were not significantly associated with stress. These results suggest that complementary health practices had a significant effect on maintaining, or improving QOL, as well as in reducing stress of Japanese outpatients.


2020 ◽  
Vol 21 (Supplement_1) ◽  
Author(s):  
A Moya ◽  
L Roggen ◽  
E Troost ◽  
P De Meester ◽  
W Budts ◽  
...  

Abstract OnBehalf Ana Moya, 1994 Introduction Although the development of right ventricular (RV) dysfunction in patients who underwent an atrial switch procedure is a major concern, long-term follow-up data on the evolution of myocardial function over time, especially using deformation myocardial imaging, is still lacking. Purpose This study aimed (1) at evaluating regional (base-mid-apex) RV and left ventricular (LV) function using Colour-Doppler myocardial imaging over a 15-year follow-up period (longitudinal analysis) and (2) at comparing results with age- and gender-matched controls (cross-sectional analysis). Methods For the longitudinal analysis, we compared systolic and diastolic function between 2004 and 2019 in 10 Senning patients. For the cross-sectional analysis, we compared the subaortic RV (sRV) of Senning patients with the RV and LV of matched controls and the subpulmonary LV (spLV) of Senning patients with the LV of matched controls. Results The longitudinal analysis (2004-2019) of sRV function showed a significant decrease in peak systolic strain (-16.9 ± 7.1% vs -12.0 ± 4.0%; P = 0.045), peak systolic strain rate (-1.1 ± 0.3s-1 vs -0.8 ± 0.4s-1; P = 0.003) and peak early diastolic velocity (-2.0 ± 1.2 cm/s vs -1.0 ± 0.5 cm/s; P = 0.036) at the apex. spLV function showed a significant decrease in peak systolic velocity (mid: 5.6 ± 1.8 cm/s vs 3.7 ± 1.1 cm/s; P = 0.013 and apex: 5.0 ± 1.7 cm/s vs 2.1 ± 1.2 cm/s; P = 0.011) and peak systolic strain rate (mid: -1.7 ± 0.5s-1 vs -1.0 ± 0.4s-1; P = 0.048). The cross-sectional analysis revealed significant lower values for peak systolic velocity, peak systolic strain rate, peak systolic strain at all myocardial regions of the sRV when compared to both LV and RV of matched controls (all P < 0.05). Similarly, early and late diastolic velocity were lower when compared to controls (P < 0.05). The spLV showed lower values for peak systolic velocity and peak systolic strain rate (mid and apex, P < 0.05), but not for peak systolic strain when compared to the LV of matched controls. Conclusion Our study shows little change in systolic and diastolic sRV function over a 15-year period, except in the apical region. Interestingly, there was a decline of spLV systolic function which may be of clinical value. On the other hand, when compared to age- and gender-matched controls, both the sRV and spLV of Senning patients exhibit significantly decreased measurements of longitudinal systolic and diastolic function.


2020 ◽  
Vol 33 (3) ◽  
pp. 347-354
Author(s):  
Mardia Guadalupe López-Alarcón ◽  
Víctor Saúl Vital-Reyes ◽  
Francisco Iván Hernández-Hernández ◽  
Jorge Maldonado-Hernández

AbstractIntroductionHyperandrogenism (HA), either clinical or biochemical, is associated with obesity in adolescent girls. Long chain polyunsaturated fatty acids ω3 (LCPUFA-ω3) play protective roles in some obesity-associated morbidities, but their contribution to preventing HA is unclear. Our aim was to examine the potential positive relationships between erythrocyte LCPUFA-ω3, with or without supplementation, and hyperandrogenemia.MethodsSecondary analysis of a clinical trial that was conducted previously to analyze the effect of LCPUFA-ω3 on insulin resistance and body weight. Here, we present a cross-sectional analysis of 180 girls with obesity, and a longitudinal analysis of 117 girls who completed a 3-month supplementation period (57 LCPUFA-ω3 [DO3] and 60 placebo [DP)]). Dehydroepiandrosterone sulfate (DHEAS), total testosterone (TT) and steroid hormone binding globulin (SHBG) were measured with chemiluminescence; free testosterone (FT) was calculated. Erythrocyte fatty acids were determined by gas chromatography. Non-parametric statistics was used for analysis.ResultsIn cross-sectional analysis, age (odds ratio [OR] = 1.35; 95% confidence interval [CI] = 1.03, 1.78; p = 0.027), insulin (OR = 1.05; 95% CI: 1.00, 1.10; p = 0.018), and erythrocytes eicosapentaenoic acid (EPA) (OR = 0.04; 95% CI: 0.01, 0.65; p = 0.012) were predictors of hyperandrogenemia (FT >0.63 ng/mL). In longitudinal analysis, EPA, adiponectin and SHBG increased, while FT decreased, in the DO3 group (p < 0.05). The risk of hyperandrogenemia at the end of follow-up was predicted by basal hyperandrogenemia (OR = 18.16, 95% CI: 5.37, 61.4; p < 0.001) and by increases in EPA (OR = 0.40; 95% CI: 0.01, 0.65; p = 0.06 marginal significance).ConclusionsOur results suggest a preventive role of EPA on the risk for hyperandrogenemia in girls with obesity, but further studies are needed to demonstrate a benefit.


Circulation ◽  
2020 ◽  
Vol 141 (Suppl_1) ◽  
Author(s):  
Cecilia Castro-Diehl ◽  
Jennifer Smith ◽  
Wei Zhao ◽  
Xu Wang ◽  
Elissa Epel ◽  
...  

In epidemiological studies, telomere shortening has been associated with age-related diseases and mortality. We assessed whether a genetic risk score (GRS) combining seven telomere length (TL)-associated genetic variants identified in a European-American genome-wide association study (GWAS) predicts TL and change in TL over 10 years in a multi-ethnic sample. Research Hypotheses: 1. In cross-sectional analysis, the GRS will be inversely associated with TL. 2. In longitudinal analysis, the GRS will be associated with change in TL over a 10-year period. Methods: TL was assessed on a sample of 1198 white, African-American and Hispanic participants, who attended both, MESA Exam 1 and 5, 10 years apart. Participants were 45-84 years at Exam 1. We used MESA measured or imputed genotype data to create the TL GRS and constructed the GRS using weighted estimates from the prior GWAS. Our main exposure was TL GRS. For hypothesis 1, we used linear mixed-effects model (LMEM) including all valid observations from both exams and adjusted for an exam indicator, age, sex and specific genetic principal components (PC). For hypothesis 2, we used LMEM with time-varying covariates and adjusted for follow-up time since Exam 1, age, sex and PC. We stratified our analysis by race/ethnic group and used the top three race/ethnic-specific genetic PC to account for population stratification. Results: In cross-sectional analysis, we observed a significant inverse association between GRS and TL (estimates= -0.18 (S.E.=0.08), P =0.02 for white; -0.18 (0.07), P <0.01 for black; and -0.13 (0.05), P =0.01 for Hispanic) after full adjustment. In the longitudinal analysis, only among Hispanics, higher TL GRS predicted a reduction in TL over a 10-year period (-0.22 (0.06, P <0.001)), but after adjustment for PC, the association became not statistically significant. Conclusion: In the cross-sectional analysis, higher TL GRS was associated with shorter TL in the three race/ethnic groups studied. TL GRS did not predict telomere attrition in any of the race/ethnic groups.


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