Fig. 2From: Changes in peripheral blood lymphocyte subsets during arthritis development in arthralgia patientsAbsolute numbers of cells per lymphocyte subset in 40 patients with arthralgia who developed arthritis within 5 years (converters) and 73 patients with arthralgia who did not develop arthritis (non-converters). Black line represents median of the whole group. Differences between groups were tested using the Mann-Whitney U test. N.S. not significantBack to article page