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Table 3 Incidence and hazard ratio of TB infection stratified by the follow-up year

From: Increased risk of pulmonary and extrapulmonary tuberculosis infection in patients with polycystic kidney disease: a nationwide population-based study with propensity score-matching analysis

Variables Non-PKD Cohort PKD Cohort PKD VS. Non-PKD
n = 6770 n = 6770 Crude HR Adjusted HR
Event Person years IR Event Person years IR (95% CI) (95% CI)
Follow-up year
 < 1 26 6605 39.36 67 6268 106.89 2.69(1.71–4.23)*** 2.82(1.79–4.43)***
 1–3 30 11,340 26.46 47 10,261 45.81 1.73(1.10–2.74)* 1.85(1.17–2.93)**
 3–5 24 8634 27.80 27 7374 36.62 1.31(0.76–2.27) 1.50(0.86–2.60)
 > 5 34 14,604 23.28 34 11,423 29.77 1.27(0.79–2.05) 1.54(0.95–2.49)
  1. IR incidence rates, per 10,000 person-years, HR hazard ratio, CI confidence interval
  2. Adjusted HR: adjusted for sex, age, and all comorbidities in Cox proportional hazards regression
  3. *p < 0.05, **p < 0.01, ***p < 0.001