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Table 1 HEp-2-IIF titers in 10,869 positive samples, according to referral specialty (rheumatology versus other specialties)

From: The influence of demography and referral medical specialty on the detection of autoantibodies to HEP-2 cells in a large sample of patients

Titer Rheumatology Other specialties p value (Chi-square test)
n = 1580 (%) Reactivity grade (%) n = 9289 (%) Reactivity grade (%)
1/80 131 (8.3) Low
676 (42.8)
1215 (13.1) Low
5094 (54.8)
p < 0.0001
1/160 545 (34.5) 3879 (41.8)
1/320 483 (30.6) Moderate
734 (46.4)
2780 (29.9) Moderate
3778 (40.7)
p < 0.0001
1/640 251 (15.9) 998 (10.7)
1/1280 155 (9.8) High
170 (10.8)
394 (4.2) High
417 (4.5)
p < 0.0001
≥ 1/2560 15 (0.9) 23 (0.2)