Understanding the Correlation between Tomographic and Biomechanical Severity of Keratoconic Corneas

Table 2

Spearman correlation coefficients to compare correlation between the variables. The values are listed for each correlation and represent the statistical significance of the correlation.

	1	Tune	2	DA	IOP	AUDA	an RMS	bn RMS	TPT	CCT	1	2	mean	max
1		−0.244	−0.741	−0.793	0.959	−0.843	−0.818	0.104	0.56	0.566	−0.475	−0.568	−0.605	−0.547
		0.0048	<0.0001	<0.0001	<0.0001	<0.0001	<0.0001	0.2367	<0.0001	<0.0001	<0.0001	<0.0001	<0.0001	<0.0001
Time			0.289	0.198	−0.25	0.217	0.169	−0.31	0.04	0.029	0.004	0.06	0.038	0.03
			0.0008	0.0228	0.0038	0.0125	0.0531	0.0003	0.6465	0.7394	0.967	0.4943	0.6669	0.7352
2				0.756	−0.72	0.754	0.745	0.078	−0.335	−0.364	0.345	0.388	0.372	0.376
				<0.0001	<0.0001	<0.0001	<0.0001	0.3728	0.0001	<0.0001	0.0001	<0.0001	<0.0001	<0.0001
DA					−0.753	0.957	0.954	0.083	−0.648	−0.659	0.541	0.662	0.671	0.63
					<0.0001	<0.0001	<0.0001	0.3464	<0.0001	<0.0001	<0.0001	<0.0001	<0.0001	<0.0001
IOP						−0.806	−0.785	0.098	0.529	0.535	−0.452	−0.545	−0.576	−0.523
						<0.0001	<0.0001	0.2638	<0.0001	<0.0001	<0.0001	<0.0001	<0.0001	<0.0001
AUDA							0.949	0.027	−0.66	−0.667	0.577	0.685	0.693	0.659
							<0.0001	0.7596	<0.0001	<0.0001	<0.0001	<0.0001	<0.0001	<0.0001
an RMS								0.04	−0.702	−0.718	0.581	0.705	0.716	0.67
								0.6516	<0.0001	<0.0001	<0.0001	<0.0001	<0.0001	<0.0001
bn RMS									0.047	0.012	−0.065	−0.139	−0.165	−0.119
									0.5932	0.8942	0.4565	0.1123	0.0593	0.1757
TPT										0.976	−0.714	−0.804	−0.793	−0.785
										<0.0001	<0.0001	<0.0001	<0.0001	<0.0001
CCT											−0.726	−0.805	−0.788	−0.79
											<0.0001	<0.0001	<0.0001	<0.0001
1												0.876	0.85	0.955
												<0.0001	<0.0001	<0.0001
2													0.939	0.974
													<0.0001	<0.0001
mean														0.929
														<0.0001
max