This article examines the clinical, pathologic, and radiologic features of pulmonary immaturity, the impact of evolving therapeutic strategies, and the changing face of chronic lung disease of prematurity.
intr.v. cross-mulÂ·tiÂ·plied, cross-mulÂ·tiÂ·plyÂ·ing, cross-mulÂ·tiÂ·plies. To multiply the numerator of one of a pair of fractions by the denominator of the other.
Cross tabulation. (Most of the statistical material related to cross-tabulation is covered under Chi-square.) Cross-tabluation is about taking two variables and tabulating the results of one variable against the other variable. An example would be the cross-tabluation of course performance against mode of study: Each individual would have had a recorded mode of study (the rows of the table) and performance on the course (the columns of the table). For each indivdual, those pairs of values have been entered into the appropriate cell of the table.