Table 5.

Risk of developing the other disease according to years of followup.

Years of FollowupPatients with pSS to Develop NHLPatients with NHL to Develop pSS
OESIR (95% CI)OESIR (95% CI)
< 1151.768.5 (4.8–14.1)172.317.4 (4.3–11.8)
1–3163.534.5 (2.6–7.4)143.963.5 (1.9–5.9)
3–572.682.6 (1.1–5.4)43.171.3 (0.3–3.2)
≥ 5133.144.1 (2.2–7.1)145.942.4 (1.3–4.0)
Total5111.114.6 (3.4–6.0)4915.383.2 (2.4–4.2)
  • Observed (O): observed number. Expected (E): expected number. pSS: primary Sjögren syndrome; NHL: non-Hodgkin lymphoma; SIR: standardized incidence ratio.