Table 1 Patient characteristics at baseline by sex

Age at onset of PsA*

50 (39–60)

50 (40–61)

51 (38–60)

Duration of symptoms (months)*

11 (3.6–33.3)

7.4 (3.2–25.6)

13.5 (4.6–44.8)

*

Working status (age < 68), yes**

71%

78%

64%

*

Educational status (years)*

12 (10–15)

13 (11–16)

12 (10–15)

*

Ethnicity (Dutch)**

94%

94%

93%

Smoking, yes**

21%

18%

24%

BMI*

27.5 (25–31.4)

27.2 (24.8–31.1)

27.9 (24–31.7)

Obesity (BMI > 30 kg/m²)

32%

28%

36%

*

CRP (mg/L)*

3.9 (0–10)

4 (0.8–11)

3.4 (0–9)

CRP positive (> 5 mg/L)

36%

41%

30%

*

SJC66*

2 (1–4)

2 (1–4)

2 (0–4)

*

TJC68*

3 (1–7)

2 (1–5)

4 (2–8)

*

VAS global*

47 (24–65)

40 (19–58)

51 (31–70)

*

Pain (VAS score)*

47 (25–69)

41 (21.5–62)

53 (31–71)

*

PASI*

2 (0.4–4.4)

2.4 (0.6–5.2)

1.45 (0.3–3.45)

*

Anxiety**

4 (2–7)

4 (1–6)

5 (3–8)

*

BRAF*

20 (10–31)

16 (6–27)

25 (15–34)

*

HAQ*

0.75 (0.38–1.13)

0.63 (0.19–0.88)

0.88 (0.50–1.25)

*

CPDAI*

4 (2–5)

3 (2–5)

4 (3–6)

*

DAPSA*

21 (13–32)

19 (11–32)

22 (15–32)

*

GRACE*

3.4 (2.3–4.3)

3.0(2.0–4.3)

3.6(2.6–4.5)

MDA**

31%

30%

32%

PASDAS***

4.2 (3.3–4.9)

4 (3.1–4.8)

4.3 (3.5–5)

*