The data used in this paper is from a case control study on hyponatremia and hiccups conducted in Christian Medical College, Vellore, Tamil Nadu, India.[8 (link)] The main aim of the hyponatremia study was to find an association between hyponatremia and hiccups after adjusting for potential confounding factors such as gender, age, renal disease, and creatine level in hospitalized patients. The dataset consists of 50 subjects with hiccups (cases) and 50 subjects without hiccups (controls). The hiccups groups were subdivided according to the severity of the disease so that among 50 subjects with hiccups, 23 subjects had mild hiccups, 12 subjects had moderate hiccups, and 15 subjects had a severe kind of hiccups. For an illustrative purpose, we have chosen 23 mild hiccup cases and 50 controls from the dataset and other confounding factors were randomly generated based on the given estimated values. Data were analyzed using SAS 9.2 for windows (SAS Institute, Inc., Cary, NC, 2000) software.[9 ]