Modeling Correlated Binary Outcomes with Time-Dependent Covariates

Lalonde, Trent L.; Nguyễn, Quỳnh Anh; Yin, Jianqiong; Irimata, Kyle M.; Wilson, Jeffrey R.

doi:10.6339/jds.2013.11(4).1195

Cited by 20 publications

(10 citation statements)

References 21 publications

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“…Our study design includes repeated observations within subjects as each subject rated helpfulness of multiple reviews. GEE is a suitable method for modeling clustered data as it accounts for the correlation among multiple observations by a single subject (Lalonde et al ., 2013). Equation (1) indicates our GEE model where π ijk is the probability that subject I classifies review j about hotel k as helpful (1) versus not helpful (0):where Cnc – concreteness of review j of hotel chain k ; Spl – spelling error count of review j of hotel chain k ; Grm – grammar error count of review j of hotel chain k ; Crd – subject i' s perceived credibility of review j about hotel k ; Neu – subject i' s score on neuroticism; Ext – subject i' s score on extraversion; Gen – subject i 's gender; Education – subject i's education level; Age – subject i' s age and Prior Familiarity – familiarity of subject I with hotel chain k. …”

Section: Methodsmentioning

confidence: 99%

Section: Modeling Approachmentioning

confidence: 99%

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Azimi

Andonova²

2023

MIP

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PurposeThis paper provides a framework of the indicators of the quality of text in online reviews and their influence on the perceived helpfulness of reviews. First, the authors assess the effects of concreteness, readability and credibility on review helpfulness. The authors then test whether these effects change, based on review valence and readers' personality traits (specifically, extraversion and neuroticism).Design/methodology/approachThe authors conducted an online experiment in the context of hotel reviews and tested our model using Generalized Estimating Equations (GEE).FindingsThe authors' findings indicate that consumers consider all three quality features – concreteness, readability and credibility when evaluating negative reviews. However, they assess positive reviews based only on how credible they seem to be. Consumers with the personality traits of neuroticism and extraversion value different review characteristics and this difference is dependent on review valence.Originality/valueTo the authors' knowledge, this is the first study to examine the interactions between review valence and reader personality on review helpfulness. The authors' findings make important contributions to the literature on information diagnosticity and offer managerial implications related to customizing the presentation order of reviews based on their expected helpfulness for individuals with extraverted and neurotic personalities.

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Section: Methodsmentioning

confidence: 99%

Section: Modeling Approachmentioning

confidence: 99%

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Azimi

Andonova²

2023

MIP

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“…A linear mixed model analysis was used to assess the correlation between the measured indices and subjective rating scores from participants for each stage, which considered the within-subject correlation effect due to repeated measurements within participants. Since the independent variables of interest, SpO 2 , pCO 2 , heart rate, EEI, temperature, and humidity in the mask were time-dependent covariates that could change at each measurement point, the intra-individual and inter-individual effects were separated for analyses [ 24 ].…”

Section: Methodsmentioning

confidence: 99%

The Effects of Wearing Facemasks during Vigorous Exercise in the Aspect of Cardiopulmonary Response, In-Mask Environment, and Subject Discomfort

Hong

Byun

Choi

et al. 2022

IJERPH

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Non-pharmaceutical intervention such as wearing a mask during the pandemic of SARS-CoV-2 is one of the most important ways to prevent the spread of the virus. However, despite high effectiveness and easy to access, the biggest problem is ‘discomfort’. The purpose of this study was to measure the changes of cardiopulmonary response and related factors affecting breathing discomfort when wearing a mask during vigorous exercise. Fifteen healthy male adults participated in this study. The experimental protocol consisted of three conditions: no mask; KF-94 mask; and sports mask. Each condition consisted of three stages: stage I, 2 m/s on even level; stage II, 2 m/s with 5° inclination; and stage III, 3 m/s on even level. Oxygen saturation (SaO2) and heart rate (HR), partial pressure of carbon dioxide (pCO2), energy expenditure index (EEI), in-mask temperature, humidity, and a five-point scale questionnaire to evaluate subjective discomfort were measured. The results show that there was a significantly higher discomfort score in mask conditions compared with no mask (p < 0.05) and only pCO2 change significantly related to subjective discomfort during exercise (p < 0.05). Moreover, the pCO2 washout was significantly disturbed when wearing a sports mask in stages 2 and 3, which was related to wearer subjective discomfort

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“…Pinpointing the probability distribution that the research data follow is critical for analyses that are sensitive to the distribution. 12 A normal distribution ( figure 2A ), gamma distribution with rate parameters 1 ( figure 2B ), 2 ( figure 2C ) and 4 ( figure 2E ) had a lack of fit of the data as compared with Gamma distribution with the rate parameter 3 ( figure 2D ). Thus, as the outcome of interest birth interval was a discrete variable, a discrete gamma regression model was employed.…”

Section: Methodsmentioning

confidence: 96%

“… 11 The within-subject correlations among the repeated measures are taken into account by using a working correlation structure and employing that structure for the parameter estimations. 12 Due to the marginal mean function, GEE does not make any full distributional assumptions. 14 15 The SAS software provides two procedures that enable to performance of GEE analysis.…”

Section: Methodsmentioning

confidence: 99%

Discrepancies of recurrent birth intervals using longitudinal data analysis in Ethiopia: interim EDHS 2019

2022

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ObjectiveThis study aimed to determine whether the birth interval changes differently over time among women in Ethiopia and whether the change depends on women, children and household characteristics measured at the last visit.MethodsLongitudinal study design was implemented based on the data obtained from the 2019 Ethiopia Mini Demographic and Health Survey consisting of a total of 3630 mothers. Generalised estimating equation and generalised linear mixed model were employed to estimate the effect of the determinants given the correlation between birth intervals within a mother is under consideration.ResultsThe majority of women were Muslims (48.1%) and come from rural areas (82.2%). About 77.2% of women at first birth were below 20 years old. A significant correlation (p value<0.0001) between the first and second birth intervals of mothers was observed. The estimated birth interval of women from the poorest household was 0.877 (e−0.1317) times the estimated birth intervals of women from the richest household. This indicates richest households were likely to have higher birth intervals as compared with the poorest households (95% CI e−0.1754=0.839 to e−0.088=0.916).ConclusionThe birth intervals of over one-fifth of mothers were 1 year, less than the birth interval recommended by the WHO standard. It was also perceived that successive birth intervals are correlated. Mothers who have delivered female children had lower birth intervals than mothers who have delivered male children. As compared with the birth intervals of mothers from a household with higher economic status, the birth intervals of mothers from a household with lower economic status had lower birth intervals. In this study, significant effects of religion, contraceptive use, region, mothers’ current age, education level and mothers’ current marital status on birth intervals were also noted.

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Modeling Correlated Binary Outcomes with Time-Dependent Covariates

Cited by 20 publications

References 21 publications

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The Effects of Wearing Facemasks during Vigorous Exercise in the Aspect of Cardiopulmonary Response, In-Mask Environment, and Subject Discomfort

Discrepancies of recurrent birth intervals using longitudinal data analysis in Ethiopia: interim EDHS 2019

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