Research Article

Evaluation of Growth Patterns and Body Composition in C57Bl/6J Mice Using Dual Energy X-Ray Absorptiometry

Table 2

Bivariate correlation coefficients Spearman’s rho or Kendall’s tau and values (in round brackets) among DEXA soft tissues measurements and somatometric indexes in female C57BL/6J mice from 5 to 30 weeks of age.

5 weeks, no. 20LMFM

BMI0.552 (0.014)0.307 (0.201)
Body weight0.552 (0.014)0.307 (0.201)
Body surface area0552 (0.014)0.307 (0.201)

9 weeks, no. 20LMFM

BMI0.661 (0.002)0.239 (0.320)
Body weight0.737 (0.0003)0.145 (0.541)
Body surface area0.761 (0.0001)0.067 (0.780)

13 weeks, no. 25LMFM

BMI0.451 (0.020)0.531 (0.006)
Body weight0.857 (<0.000001)0.170 (0.410)
Body surface area0.357 (0.080)−0.417 (0.038)

17 weeks, no. 5 LMFM

BMI0.499 (0.004)0.369 (0.030)
Body weight0.133 (0.460)0.089 (0.632)
Body surface area0.258 (0.772)−0.335 (0.057)

21 weeks, no. 10LMFM

BMI0.813 (0.004)−0.605 (0.062)
Body weight0.699 (0.024)−0.280 (0.431)
Body surface area0.873 (0.0009)−0.711 (0.021)

25 weeks, no. 5 LMFM

BMI0.000 (1.000)0.599 (0.220)
Body weight0.000 (1.000)0.200 (0.806)
Body surface area−0.223 (0.794)0.200 (0.806)

30 weeks, no. 5 LMFM

BMI0.800 (0.086)0.316 (0.613)
Body weight0.800 (0.086)0.316 (0.613)
Body surface area0.516 (0.386)0.680 (0.236)

LEGEND:
Kendall’s tau test.
BMI: body mass index.
LM: lean mass.
FM: fat mass.