The diagnostic characteristics of choosing different risk score cut-off levels, derived from the risk-prediction model.

£<p>The number of patients that have a RS of less than the chosen threshold.</p>€<p>The number of cancer patients that have a RS of less than the chosen threshold and consequently are missed, due to not being selected for prompt endoscopy.</p>¥<p>The probability of having cancer when the RS is exactly equal to the threshold, according to mentioned formulae in the method section.</p

Estimated odds ratios of demographic characteristics and alarm symptoms for upper GI malignancies, based on unadjusted and multivariable adjusted regression models.

€<p>Multivariable model is adjusted for age, gender, educational level, cigarette smoking and history of weight loss, GI bleeding, persistent vomiting and dysphagia.</p>‡<p><i>H. pylori</i> infection is detected based on Rapid Urease Test (RUT), during endoscopy.</p

Reclassification table for age and alarm symptom model (Model2) and risk-prediction model (Model3).

*<p>Model2: age plus four alarm symptoms (weigh loss, persistent vomiting, GI bleeding, dysphagia); Model3: risk-prediction model.</p

Performance of three different models for predicting UGI malignancy in dyspeptic patients.

*<p>Model1: age only; Model2: age plus four alarm symptoms (weigh loss, persistent vomiting, GI bleeding, dysphagia); Model3: risk-prediction model.</p>**<p>Brier<i>_scaled</i> = 1−Brier/Brier<i>_max</i>, where Brier<i>_max</i> = mean(p)<i>×</i>(1−mean(p)); and mean(p) is mean probability of outcome prediction based on model.</p

Prospective Acid Reflux Study of Iran (PARSI): Methodology and study design-1

<p><b>Copyright information:</b></p><p>Taken from "Prospective Acid Reflux Study of Iran (PARSI): Methodology and study design"</p><p>http://www.biomedcentral.com/1471-230X/7/42</p><p>BMC Gastroenterology 2007;7():42-42.</p><p>Published online 20 Nov 2007</p><p>PMCID:PMC2212633.</p><p></p> junction across the z-line, C: Cardia, D: Body, E: Antrum

Prospective Acid Reflux Study of Iran (PARSI): Methodology and study design-2

<p><b>Copyright information:</b></p><p>Taken from "Prospective Acid Reflux Study of Iran (PARSI): Methodology and study design"</p><p>http://www.biomedcentral.com/1471-230X/7/42</p><p>BMC Gastroenterology 2007;7():42-42.</p><p>Published online 20 Nov 2007</p><p>PMCID:PMC2212633.</p><p></p> after one week. If patient is better with the previous prescription, patient should back to the previous dosage and continue till the next visit

Prospective Acid Reflux Study of Iran (PARSI): Methodology and study design-0

<p><b>Copyright information:</b></p><p>Taken from "Prospective Acid Reflux Study of Iran (PARSI): Methodology and study design"</p><p>http://www.biomedcentral.com/1471-230X/7/42</p><p>BMC Gastroenterology 2007;7():42-42.</p><p>Published online 20 Nov 2007</p><p>PMCID:PMC2212633.</p><p></p>Presenting just by minor symptoms

Distribution of the ages of refrigerator acquisition.

<p>Distribution of the ages of refrigerator acquisition.</p

Year of diagnosis for the enrolled CD patients.

<p>Year of diagnosis for the enrolled CD patients.</p

Comfort at home in CD patients and controls.

*<p>Data are expressed in medians and quartiles.</p