Recall bias for seven-day recall measurement of alcohol consumption among emergency department patients: implications for case-crossover designs.
ABSTRACT The purpose of this study was to estimate biases in recalling alcohol consumption over short periods.
Patients (n = 918) attending the surgical ward of the emergency department (ED) of the Lausanne University Hospital in Switzerland participated in a brief intervention study. Inclusion criteria were an average alcohol consumption exceeding 14 drinks per week for men or 7 drinks per week for women, or the consumption at least once monthly of 5 or more drinks for men or 4 or more drinks for women. Alcohol consumption was measured by means of a retrospective 7-day diary.
Recalled alcohol consumption decreased with the length of the recall period. Consumption was 0.9 drinks lower for a recall of 7 days compared with a recall of 1 day. Biases were apparent for every day of the week, but the bias was highest for consumption to be recalled for Fridays and Saturdays. Recall bias was significant only for sporadic drinkers (those drinking less than 4 days a week) but not for regular drinkers (those drinking 5 or more days a week).
Recall bias is a threat for survey measurements of alcohol consumption in general and particularly for research designs in which the bias is differentially distributed across cases and controls. This bias is true for case-crossover designs in which the recalled consumption of an individual for a period farther away from the interview (e.g., past week) serves as the control for the acute intake of the same individual (e.g., in the 6-hour period preceding ED attendance). Because risk estimates of case-crossover designs focus particularly on sporadic drinkers, the finding of recall biases being higher among sporadic drinkers increases the chance of spurious findings in such designs.
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ABSTRACT: Background: Parental divorce and psychopathology are well-documented risk factors for alcohol use disorders (AUD) in the United States and other countries where divorce is common and per capita total alcohol consumption is moderate to high. However, little is known about these relationships in countries where divorce and alcohol problems are less common, such as Israel. Methods: Israeli adult household residents (N=797) age 21-45 were interviewed in person between 2007 and 2009. Logistic regression models were used to examine main and additive interaction effects of parental divorce and psychopathology on lifetime DSM-IV AUD, adjusting for age, gender, and ethnicity. Results: Parental divorce (OR=2.18, p <= 0.001) and parental psychopathology (OR=1.61, p <= 0.01) were independently associated with lifetime AUD and, when considered together, showed significant interaction (p=0.026). Specifically, the effect of divorce on AUD was only significant among those who also reported parental psychopathology. Conclusions: This is the first study showing the influence of parental divorce and psychopathology on risk for AUD among Israeli adults, where both divorce and AUD are less common than in the United States. Alcohol prevention and treatment professionals should recognize that children who experience parental divorce and/or psychopathology could be more vulnerable to later developing AUD than those whose parents remain together and without psychopathology.Drug and Alcohol Dependence 05/2014; 141. DOI:10.1016/j.drugalcdep.2014.05.009 · 3.28 Impact Factor
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ABSTRACT: Context Patient-reported outcomes (PROs) provide a way to understand the effects of hematopoietic cell transplantation (HCT)-related stress upon patients' lives. We previously reported that weekly collection of PROs is feasible. Objectives Here, we report on the feasibility of daily patient-reported symptom collection and we examine the relationship between daily vs. weekly symptom reporting over time. Methods We analyzed data from 32 autologous and allogeneic HCT patients obtained until Day (D)+100. We used questions from the PRO version of the Common Terminology Criteria for Adverse Events to capture symptoms. Results We found that overall rates of daily survey completion were moderate to high (range 67%-86%). The effect size of the difference between the maximum daily severity score and the weekly severity score ranged from 0.15 to 0.35, and the concordance correlation coefficient (CCC) ranged from 0.513 to 0.834. Concordance of daily and weekly surveys was higher for maximum daily severity rating and mean daily severity rating than for minimum daily severity rating or most recent daily severity rating. Conclusion We conclude that a seven-day recall period for symptom severity provides acceptable accuracy and precision in the first 100 days following HCT. Further studies to explore the utility of daily symptom reporting within specific clinical contexts may be warranted.Journal of Pain and Symptom Management 08/2014; DOI:10.1016/j.jpainsymman.2014.06.011 · 2.74 Impact Factor
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ABSTRACT: Background and aimAdjustments for under-reporting in alcohol surveys have been used in epidemiological and policy studies which assume that all drinkers underestimate their consumption equally. This study aims to describe a method of estimating how under-reporting of alcohol consumption might vary by age, gender and consumption level.Method The Canadian Alcohol and Drug Use Monitoring Survey (CADUMS) 2008 to 2010 (N= 43,371) asks about beverage specific ‘yesterday’ consumption (BSY) and Quantity-Frequency (QF). Observed drinking frequencies for different age and gender groups were calculated from BSY and used to correct values of F in QF. Beverage-specific correction factors for quantity (Q) were calculated by comparing consumption estimated from BSY with sales data.ResultsDrinking frequency was underestimated by males (Z=24.62, p<0.001) and females (Z=17.46, p<0.001) in the QF as assessed by comparing with frequency and quantity of Yesterday drinking. Spirits consumption was underestimated by 65.94% compared with sales data, wine by 38.35% and beer by 49.02%. After adjusting Q and F values accordingly, regression analysis found alcohol consumption to be under-estimated significantly more by younger drinkers (e.g.82.9 ±1.19% for underage drinkers vs 70.38 ±1.54% for those 65+, p<0.001) and by low risk more than high risk drinkers (76.25 ±0.34% vs 49.22 ±3.01%, p<0.001). Under-reporting did not differ by gender.Conclusions Alcohol consumption surveys can use the Beverage-Specific Yesterday method to correct for underreporting of consumption among sub-groups. Alcohol consumption among Canadians appears to be under-reported to an equal degree by men and women. Younger drinkers underreport alcohol consumption to a greater degree than do older, while low risk drinkers underestimate more than do medium and high-risk.Addiction 05/2014; 109(10). DOI:10.1111/add.12609 · 4.60 Impact Factor