A Study of Changes in Morphology of Osteoarthritic Articular Cartilage Using Computerized Image Analysis

Table 3

Mean and standard deviation of the cell density (number of cells per 10,000 µm² area) in all four zones in OA group.

	Zone 1	Zone 2	Zone 3	Zone 4
41–50 years	4.58±1.05	2.33±0.45	3.82±0.24	3.86±1.36
51–60 years	5.52±3.59	3.26±2.01	3.39±1.84	3.01±1.39
61–70 years	5.53±2.04	2.49±0.50	2.55±0.53	2.33±0.45
71–80 years	2.92±0.95	2.28±0.76	2.23±0.33	2.82±0.43
81–90 years	1.75±1.21	1.65±0.41	2.05±0.66	1.68±0.21