ABSTRACT
Objective To analyze the relationship between ferritin, carbohydrate antigen (CA)125, CA153, lactic dehydrogenase (LDH), albumin and progression and prognosis of Sj?gren's syndrome with inter-stitial pneumonitis (pSS-IP). Methods Five hundred and twenty-seven primary pSS patients from 2011 to 2017 were analyzed retro-spectively. According to the lung imaging and clinical features, they were divided into groups. The differences of ferritin, CA125, CA153, LDH and albumin (ALB) levels in each group were analyzed by Mann-Whitney U test. Logistic regression was used to analyze the risk factors of pSS complicated with interstitial pneumonitis. Results ① Among the 527 pSS patients, 206 (39.1％) were diagnosed with IP. Compared with 321 patients without interstitial pneumonitis (pSS-N-IP), ferritin, CA125, CA153 and LDH in pSS-IP were relatively higher [189(116, 380) ng/ml vs 138(75, 258) ng/ml, Z=-3.777, P<0.05;19(12, 36) U/ml vs 12(9, 19) U/ml, Z=-5.974, P<0.05;22(12, 34) U/ml vs 9(6, 14) U/ml, Z=-4.582, P<0.05;206(165, 258) U/L vs 161(139, 195) U/L, Z=-8.770, P<0.05], while albumin was lower [34(31, 37) g/L vs 36(34, 39) g/L, Z=5.210, P<0.05]. ② pSS-IP were divided into pSS-IP progression group (46 cases) and pSS-IP stable group (60 cases) according to their lung imaging characteristics. Compared with pSS-IP stabilization group, pSS-IP progression group had higher ferritin [254(129, 693) ng/ml vs 161(104, 259) ng/ml, Z=-2.437, P<0.05]. ③ Logistic regres-sion analysis showed that there was correlation between ferritin and the progress of pSS-IP (OR=1.002). Conclusion Ferritin, CA125, CA153, LDH, albumin are related to pSS-IP. Ferritin isrelated to the progress of pSS-IP, and is a risk factor for the progress of pSS-IP.