For all countries, the beta coefficient for ln volume in the second model was highly significant, i.e., by reducing the model’s χ 2 and increasing the pseudo R 2 from 0.05 to 0.20.
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High Intensity Drinking (HID) Assessed by Maximum Quantity Consumed Is an Important Pattern Measure Adding Predictive Value in Higher and Lower Income Societies for Modeling Alcohol-Related Problems.
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Here, the maximum quantity consumed did not significantly improve the model fit for seven countries including Brazil, India, Kazakhstan, Nicaragua, Nigeria, Sweden, and the US (with results marginally significant for Uganda).