Table 7. Change of JSW values in both groups of patients compared with the initial values.

Group	n	After one year	reduction
CGS	43	3.74 ± 0.87	0.29 ± 0.26 (0.26-1.13)
NSAID	41	3.63 ± 0.93	0.24 ± 0.22 (0.10-1.10)

*JSW – joint space width; †CGS – crystalline glucosamine sulfate; ‡NSAID – nonsteroidal anti-inflammatory drug