Frequency of anti-Jo-1 and smoking status by country
| Anti-Jo-1 present | Smoking ever | |
|---|---|---|
| Country | n (%) | n (%) |
| Hungary | 29 (16) | 39 (22) |
| Czech Republic | 50 (27) | 71 (39) |
| Sweden | 14 (15) | 51 (54) |
| UK | 22 (22) | 55 (56) |
| Total | 115 (21) | 216 (39) |
Comparison between countries: anti-Jo-1, overall p value 0.026. Smoking status, overall p value <0.0001.