Insignificant Data Cannot Yield Statistically Significant Conclusions

You cannot use insignificant numbers to draw statistically significant conclusions. He and colleagues¹ claim to have shown a positive relationship between salt intake and the later development (over a 19-year time frame) of congestive heart failure in overweight (P = .02 for trend) but not normal weight men and women. Their major investigative variable, reported 1-day salt intake extrapolated to presumed lifelong salt intake, is based on the First National Health and Nutrition Examination Survey (NHANES I) numbers derived from each individual's recall of a single day's food and salt intake.