Table 2 Clinical features of patients classified as CTD-NSIP, NSIP-Ab (+), or NSIP-Ab (−)
Characteristics | CTD-NSIP (n = 21) | NSIP-Ab (+) (n = 14) | NSIP-Ab (−) (n = 20) | p value |
|---|---|---|---|---|
Age (years) | 50.48 ± 11.73 | 44.57 ± 8.81 | 50.50 ± 9.99 | 0.197 |
Male (%) | 15/21 (71.4Â %) | 10/14 (71.4Â %) | 11/20 (55.0Â %) | 0.468 |
Duration (months) | 12.21 ± 18.06 | 18.06 ± 30.99 | 30.20 ± 78.73 | 0.528 |
Follow-up time (months) | 43.14 ± 23.90 | 53.43 ± 29.07 | 44.40 ± 24.01 | 0.467 |
Symptoms | ||||
 Dyspnea | 15/21 (71.4 %) | 13/14 (92.9 %) | 19/20 (95 %) | 0.067 |
 Cough | 14/21 (66.7 %) | 10/14 (71.4 %) | 16/20 (80 %) | 0.627 |
 Chest pain | 2/21 (9.5 %) | 1/14 (7.1 %) | 1/20 (5 %) | 0.856 |
 Dry eyes or dry mouth | 2/21 (9.5 %) | 1/14 (7.1 %) | 0 | 0.386 |
 Fever | 2/21 (9.5 %) | 2/14 (14.3 %) | 3/20 (15 %) | 0.853 |
 Arthralgia | 6/21 (28.6 %) | 3/14 (21.4 %) | 1/20 (5 %) | 0.138 |
 Rash | 5/21 (23.8 %) | 1/14 (7.1 %) | 0 | 0.044 |
 Raynaud’s phenomenon | 3/21 (14.3 %) | 0 | 0 | 0.077 |
 Weight loss | 2/21 (9.5 %) | 1/14 (7.1 %) | 1/20 (5.0 %) | 0.856 |
Signs | ||||
 Crackles | 19/21 (90.5 %) | 13/14 (92.9 %) | 15/20 (75 %) | 0.246 |
 Clubbing | 7/21 (33.3 %) | 5/14 (35.7 %) | 5/20 (25 %) | 0.765 |