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. 2014 Feb 28;9(2):e90484. doi: 10.1371/journal.pone.0090484

Table 3. Clinical features associated with clinically significant symptoms of anxiety and depression in patients with systemic sclerosis*.

Patients with anxiety symptoms Patients without anxiety symptoms p-value Patients with depression symptoms Patients without depression symptoms p-value
n = 224 n = 157 n = 154 n = 227
Age, years, median (IQR) 57 (46–66) 57 (47–65) 0.844 58 (47–66) 55 (48–65) 0.229
Age at disease onset, years, median (IQR) 46 (39–55) 47 (37–54) 0.993 46 (39–55) 46.5 (37–53) 0.210
Male sex 27/224 (12.1) 35/155 (22.6) 0.006 25/154 (16.2) 37/225 (16.4) 0.957
Patient association 36/117 (30.8) 26/74 (35.1) 0.530 25/88 (28.4) 37/103 (35.9) 0.269
Disease duration, years, median (IQR) 7 (3–14) 7 (4–13) 0.435 8 (4–14) 7 (3–13) 0.711
Body mass index, kg/m2, media (IQR) 23 (20–27) 23 (20–26) 0.528 23 (20–26) 23 (21–26) 0.728
Diffuse cutaneous SSc 81/218 (37.2) 68/151 (45.0) 0.129 64/148 (43.2) 85/221 (38.5) 0.359
Limited cutaneous SSc 116/218 (53.2) 70/150 (4.7) 0.217 76/148 (51.4) 110/220 (50.0) 0.799
Limited SSc 21/218 (9.6) 13/151 (8.6) 0.738 8/148 (5.4) 26/221 (11.8) 0.038
KPS (0–100), median (IQR) 80 (70–80) 80 (70–90) 0.071 80 (70–80) 80 (70–90) <0.001*
Inter-incisor distance, mm, median (IQR) 38 (30–42) 35 (30–40) 0.093 39 (30–42) 35 (28–40) 0.005
Skin involvement 199/219 (90.9) 138/151 (91.4) 0.862 143/151 (94.7) 194/219 (88.6) 0.042
Telangiectasia 149/207 (72.0) 102/140 (72.9) 0.858 101/141 (71.6) 150/206 (72.8) 0.809
Raynaud’s phenomenon 219/223 (98.2) 148/154 (96.1) 0.212 150/153 (980.) 217/224 (96.9) 0.490
Pitting scars 130/224 (58.0) 90/152 (59.2) 0.821 95/153 (62.1) 125/223 (56.1) 0.243
Digital ulcers 103/223 (46.2) 67/152 (44.1) 0.687 78/152 (51.3) 92/223 (41.3) 0.055
Calcinosis 61/185 (33.0) 42/127 (33.1) 0.986 43/122 (35.2) 60/190 (31.6) 0.502
Gastrointestinal tract involvement 184/223 (82.5) 119/152 (78.3) 0.308 130/153 (85.0) 173/222 (77.9) 0.089
Arthralgia 156/224 (69.6) 96/151 (45.7) 0.220 116/153 (75.8) 136/222 (61.3) 0.003
Myalgia 135/223 (60.5) 73/152 (48.0) 0.017 95/153 (62.1) 113/222 (51.0) 0.032
Dyspnea, NYHA classification, median (IQR) 2 (2–3) 2 (2–3) 0.696 2 (1–3) 2 (2–3) 0.003
Interstitial lung disease 90/220 (41.0) 73/153 (47.7) 0.193 66/150 (44.0) 97/223 (43.5) 0.924
Echocardiography systolic PAP>35 mmHg 31/223 (13.9) 17/152 (11.2) 0.439 26/152 (17.1) 22/223 (9.9) 0.039
Scleroderma renal crisis 27/223 (12.1) 7/152 (4.6) 0.013 18/153 (11.8) 16/222 (7.2) 0.131

Values are number/number of patients for whom the data is available (%), otherwise indicated.

*After Bonferroni correction for multiple comparisons, a p-value less than 0.001 was considered statistically significant.

IQR: interquartile range; KPS: Karnofsky Performance Status; n: number; NYHA: New York Heart Association; PAP: pulmonary artery pressure; SSc: systemic sclerosis.