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. Author manuscript; available in PMC: 2014 Jan 1.
Published in final edited form as: Neurogastroenterol Motil. 2012 Dec 6;25(1):10.1111/nmo.12054. doi: 10.1111/nmo.12054

Table 4.

Correlations between proportion emptied from the stomach by scintigraphy and kPCD by [13C]-Spirulina platensis GEBT: 9-point model

Pearson Correlation Coefficients, n=30
GE15 GE30 GE45 GE60 GE 90 GE120 GE150 GE180 GE240

BT15 0.432 0.447 0.411 0.423 0.375 0.332 0.381 0.317 0.328

BT30 0.437 0.560 * 0.548 * 0.569 * 0.5111 * 0.494 * 0.493 * 0.416 0.366

BT45 0.392 0.675 * 0.664 * 0.688 * 0.639 * 0.621 * 0.598 * 0.516 * 0.455

BT60 0.368 0.740 * 0.718 * 0.746 * 0.731 * 0.720 * 0.700 * 0.623 * 0.581 *

BT90 0.416 0.702 * 0.690 * 0.754 * 0.820 * 0.838 * 0.838 * 0.772 * 0.691 *
BT120 0.481 * 0.693 * 0.670 * 0.731 * 0.842 * 0.893 * 0.905 * 0.859 * 0.776 *
BT150 0.439 0.583 * 0.541 * 0.604 * 0.746 * 0.815 * 0.868 * 0.851 * 0.791 *
BT180 0.456 0.504 * 0.453 0.511 * 0.663 * 0.725 * 0.821* 0.835 * 0.801 *
BT240 0.257 0.276 0.166 0.213 0.347 0.418 0.541 * 0.601 * 0.743 *

All correlations marked “* ” have a p ≤ 0.01 and correlations marked “ ” have a p >0.01 and ≤ 0.05. All other correlations are >0.05. The canonical correlation analysis essentially jointly tests whether the correlations in the matrix below are simultaneously zero.

BT = breath test kPCD; GE = proportion of gastric emptying at specified times