Table 3.

Covariance matrix similarity for each pairwise age/treatment comparison, derived from the first 11 principal components.

	IUGR5	IUGR9	IUGR13	IUGR17	IUGR21	Sham5	Sham9	Sham13	Sham17	Sham21
IUGR5	0.816	0.244	0.276	−0.156	−0.362	0.209	0.583	0.143	−0.190	−0.302
IUGR9	0.217 −0.120–0.486	0.934	0.265	0.098	−0.056	0.036	0.166	0.396	0.623	−0.262
IUGR13	0.252 −0.129–0.525	0.235 −0.140–0.630	0.844	0.098	0.050	0.064	0.383	0.391	0.258	−0.305
IUGR17	−0.146 −0.517–0.375	0.089 −0.203–0.436	0.091 −0.283–0.447	0.912	0.199	0.110	0.084	−0.175	0.225	−0.081
IUGR21	−0.339 −0.688–0.131	−0.051 −0.274–0.362	0.047 −0.328–0.447	0.189 −0.534–0.645	0.964	−0.025	−0.284	−0.094	0.727	0.504
Sham5	0.193 0.007–0.450	0.032 −0.253–0.261	0.059 −0.258–0.316	0.103 −0.171–0.334	−0.024 −0.268–0.156	0.895	0.132	0.019	−0.017	−0.069
Sham9	0.523* 0.105–0.695	0.145 −0.214–0.483	0.343* −0.045–0.669	0.077 −0.403–0.506	−0.261 −0.623–0.230	0.119 −0.096–0.393	0.901	0.232	−0.010	−0.128
Sham13	0.128 −0.220–0.430	0.344* 0.176–0.514	0.349* 0.163–0.563	−0.160 −0.397–0.174	−0.086 −0.371–0.242	0.017 −0.278–0.234	0.204 −0.090–0.414	0.882	0.121	−0.270
Sham17	−0.172 −0.512–0.190	0.546* −0.154–0.343	0.233 −0.021–0.475	0.207 −0.211–0.498	0.671* 0.408–0.816	−0.016 −0.210–0.127	−0.009 −0.424–0.355	0.107 −0.179–0.370	0.837	0.392
Sham21	−0.282 −0.579–0.172	−0.237 −0.468–0.091	−0.284 −0.607–0.032	−0.077 −0.509–0.299	0.481* 0.085–0.733	−0.065 −0.379–0.233	−0.117 −0.464–0.374	−0.247 −0.504–0.059	0.361* 0.087–0.577	0.817

Matrix repeatability (t) is given in bold along the diagonal, with raw correlations below and adjusted correlations above. 95.0% confidence intervals for Mantel correlation estimated by bootstrap resampling are given under raw correlations. The numbers following the treatment name represent the age stage (in days). IUGR, intrauterine growth retardation.

^*P< 0.01.