Table 1

Prevalence of chondrocalcinosis (CC) and metacarpophalangeal joint (MCPJ) calcification

Index joint

Prevalence (95% CI) of CC

Overall (%)

Right (%)

Left (%)

Unilateral (%)

Bilateral (%)

Isolated (%)

Knee

8.0 (7.0-8.9)

6.7 (5.8-7.5)

6.0 (5.2-6.8)

3.3 (2.7-3.9)

4.7 (4.0-5.4)

2.7 (2.2-3.4)

Wrist

6.9 (6.0-7.8)

5.4 (4.6-6.2)

5.8 (5.0-6.6)

2.7 (2.1-3.2)

4.3 (3.6-4.9)

2.0 (1.6-2.6)

Hip

5.0 (4.3-5.9)

4.0 (3.3-4.7)

3.0 (2.4-3.6)

3.1 (2.5-3.7)

2.0 (1.5-2.5)

1.4 (1.0-1.9)

Symphysis

3.6 (2.9-4.2)

N/A

N/A

N/A

N/A

0.8 (0.5-1.2)

Any MCPJs

1.5 (1.1-2.0)

0.9 (0.6-1.2)

1.1 (0.7-1.4)

0.4 (0.2-0.6)

1.1 (0.8-1.5)

0.1 (0.0-0.3)

Abhishek et al. Arthritis Research & Therapy 2012 14:R205   doi:10.1186/ar4043