Table 2.
Incident NTM infection categorized by the year after the diagnosis of SS
| Variable | Total | Event (%) | Total person-years | Incidence Rate (/105 years) | IRR (95%CI) |
|---|---|---|---|---|---|
| The entire period | |||||
| Non- SS | 98,310 | 9 (0.01) | 312,435 | 3 | 1 |
| SS | 6554 | 4 (0.06) | 18,365 | 22 | 7.56 (2.33–24.55) |
| SS treated without immunosuppressants | 5205 | 1 (0.02) | 14,196 | 7 | 2.45 (0.31–19.30) |
| SS treated with immunosuppressants | 1349 | 3 (0.22) | 4169 | 72 | 24.98 (6.76–92.27) |
| Total | 104,864 | 13 (0.01) | 330,800 | 4 | |
| 1st year | |||||
| Non- SS | 98,310 | 3 (0.00) | 95,803 | 3 | 1 |
| SS | 6554 | 3 (0.05) | 5970 | 50 | 16.05 (3.24–79.51) |
| SS treated without immunosuppressants | 5599 | 1 (0.02) | 5089 | 20 | 6.27 (0.65–60.33) |
| SS treated with immunosuppressants | 955 | 2 (0.21) | 881 | 227 | 72.51 (12.12–433.98) |
| Total | 104,864 | 6 (0.01) | 101,773 | 6 | |
Immunosuppressants: methotrexate, cyclophosphamide, or azathioprine. Abbreviations: SS Sjögren’s Syndrome, CCI Charlson comorbidity index