Immunohistological Localization of BMP-2, BMP-7, and Their Receptors in Knee Joints with Focal Cartilage Lesions

Table 2

Correlation matrix.

	Defect size	KOSS (MRI)	Henderson score	Kellgren-Lawrence score	Duration (months)	Krenn score
Defect size
Corr. coefficient	1.0000	0.6259	0.1567	0.4705	0.1478	−0.2382
Valid cases	15	15	15	15	15	15
Significance (𝑃)	0.0000	𝟎.𝟎𝟎𝟔𝟑^∗	0.2886	𝟎.𝟎𝟑𝟖𝟒^∗	0.2995	0.1963
KOSS (MRI)
Corr. coefficient	0.6259	1.0000	0.6133	0.2468	0.6272	−0.1165
Valid cases	15	15	15	15	15	15
Significance (𝑃)	𝟎.𝟎𝟎𝟔𝟑^∗	0.0000	𝟎.𝟎𝟎𝟕𝟓^∗	0.1876	𝟎.𝟎𝟎𝟔𝟐^∗	0.3397
Henderson score
Corr. coefficient	0.1567	0.6133	1.0000	−0.2089	0.3768	−0.4605
Valid cases	15	15	15	15	15	15
Significance (𝑃)	0.2886	𝟎.𝟎𝟎𝟕𝟓^∗	0.0000	0.2274	0.0831	𝟎.𝟎𝟒𝟐𝟏^∗
Kellgren-Lawrence score
Corr. coefficient	0.4705	0.2468	−0.2089	1.0000	−0.3197	0.0330
Valid cases	15	15	15	15	15	15
Significance (𝑃)	𝟎.𝟎𝟑𝟖𝟒^∗	0.1876	0.2274	0.0000	0.1227	0.4536
Duration of symptoms (months)
Corr. coefficient	0.1478	0.6272	0.3768	−0.3197	1.0000	0.1238
Valid cases	15	15	15	15	15	15
Significance (𝑃)	0.2995	𝟎.𝟎𝟎𝟔𝟐^∗	0.0831	0.1227	0.0000	0.3301
Krenn score (synovitis)
Corr. coefficient	−0.2382	−0.1165	−0.4605	0.0330	0.1238	1.0000
Valid cases	15	15	15	15	15	15
Significance (𝑃)	0.1963	0.3397	𝟎.𝟎𝟒𝟐𝟏^∗	0.4536	0.3301	0.0000

^∗𝑃<0.05, corr. coefficient: correlation coefficient (Spearman-Rho), Syn: synovia, C: cartilage.