The fitted regression equation showed that length by the research standard was 95.3% (SE 0.9%) of the clinical measurement plus 1.88 cm (SE 0.65 cm). Thus, on average, an average 6-month-old boy ...

A fitted regression equation estimated that the research standard length was 95.3% of the clinical measurement plus 1.88 cm. Over the entire age span, the mean (SD) difference between clinical and ...