Fig. 2: Correlation analysis of stereological data.
From: Three-dimensional characteristics of the alveolar capillary network in infant and adult human lungs
Correlation analyses were performed by one-tailed Spearman’s rank correlation. The correlation between two variables was considered significant when p < 0.05. The relationship between the variables was described by the power law equation y = axb. Note the double logarithmic scale when infant and adult data were plotted together. N(Cap) = Number of capillary loops; S(Endo) = Surface area of capillary endothelium; V(lung) = Volume of lung. The data of septal blood volume were taken from Zeltner et al.17. Correlation of number of capillaries with lung volume in infants (a), in adults (d) and in infants and adults (g). Correlation of endothelial surface area with lung volume in infants (b), in adults (e) and in infants and adults (h). Correlation of number of capillaries with septal blood volume in infants (c), in adults (f) and in infants and adults (i).
