Table 1 Comparison between control and patient groups as regards age, sex, ESR 1h., DKK–1, RF, CRP, and anti-CCP

Age (years)

Range

27–60

25–58

T: 0.967

0.336

Mean ± SD

45.50 ± 9.42

42.83 ± 11.42

Sex

Male (%)

9 (45%)

20 (25%)

X²: 3.108

0.078

Female (%)

11 (55%)

60 (75%)

ESR 1h. (mm.)

Range

4–11

5–85

T: 7.556

0.001*

Mean ± SD

8.30 ± 2.00

44.80 ± 21.50

DKK–1

(pg/mL)

Range

421.5–2657

1650.8–10857.5

T: 6.982

0.001*

Mean ± SD

1102.42 ± 758.29

5383.80 ± 2973.45

RF (IU/ml)

Positive (%)

0 (0%)

64 (80%)

X²: 44.444

0.001*

Negative (%)

20 (100%)

16 (20%)

CRP (mg/L)

Positive (> 6) (%)

0 (0%)

67 (83.3%)

X²: 50.758

0.001*

Negative (< 6) (%)

20 (100%)

13 (16.3%)

Anti-CCP (u/ml)

Range

4–20

35–195

T: 9.632

0.001*

Mean ± SD

12.67 ± 3.24

114.78 ± 47.18