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. 2009 Sep 11;137(1):129–137. doi: 10.1378/chest.09-1002

Table 2.

—Incidence per 100,000 Person-Years of IPF Stratified by Calendar-Year of IPF Diagnosis by Narrow-Case Finding Criteria and Broad-Case Criteria

Narrow-Base Criteria
Sex and Age Calendar-Years of IPF Diagnosis
Overall, 1997-2005, N = 24 1997-1999, n = 11 2000-2002, n = 7 2003-2005, n = 6
Overall, age and sex adjusted incidence 8.8 (24) 13.68 (11) 7.52 (7) 5.96 (6)
 95% CI 5.28-12.38 5.57-21.80 1.92-13.11 1.15-10.76
Men, age adjusted incidence 13.38 (15) 21.31 (7) 10.04 (4) 9.90 (4)
 95% CI 6.51-20.24 5.31-37.30 0.00-20.08 0.11-19.70
Age, y
 50-59 1.64 (1) 0.00 (0) 4.94 (1) 0.00 (0)
 60-69 10.69 (4) 17.87 (2) 8.07 (1) 7.24 (1)
 70-79 21.44 (5) 42.28 (3) 12.80 (1) 11.88 (1)
  > 80 41.26 (5) 57.99 (2) 25.13 (1) 42.64 (2)
Women, age adjusted incidence 6.08 (9) 9.03 (4) 5.68 (3) 3.88 (2)
 95% CI 2.08-10.08 0.17-17.89 0.00-12.18 0.00-9.27
Age, y
 50-59 1.55 (1) 5.31 (1) 0.00 (0) 0.00 (0)
 60-69 4.98 (2) 0.00 (0) 7.62 (1) 6.73 (1)
 70-79 16.72 (5) 31.72 (3) 9.95 (1) 9.63 (10)
  > 80 3.93 (1) 0.00 (0) 11.81 (1) 0.00 (0)
Broad-Case Criteria
Sex and Age Calendar-Years of IPF Diagnosis
Overall, 1997-2005, N = 47 1997-1999, n = 20 2000-2002, n = 16 2003-2005, n = 11
Overall, age and sex adjusted incidence 17.43 (47) 24.65 (20) 17.79 (16) 11.04 (11)
 95% CI 12.42-22.44 13.81-35.49 9.03-26.55 4.47-17.61
Men, age adjusted incidence 24.02 (27) 33.50 (11) 26.26 (10) 14.41 (6)
 95% CI 14.84-33.20 13.45-53.56 9.72-42.80 2.75-26.07
Age, y
 50-59 1.64 (1) 0.00 (0) 4.94 (1) 0.00 (0)
 60-69 21.39 (8) 26.81 (3) 24.20 (3) 14.47 (2)
 70-79 42.88 (10) 70.47 (5) 38.41 (3) 23.76 (2)
  > 80 66.02 (8) 86.98 (3) 75.40 (3) 42.64 (2)
Women, age adjusted incidence 13.43 (20) 19.57 (9) 12.22 (6) 9.15 (5)
 95% CI 7.50-19.37 6.72-32.43 2.37-22.07 1.05-17.26
Age, y
 50-59 1.55 (1) 5.31 (1) 0.00 (0) 0.00 (0)
 60-69 12.44 (5) 16.39 (2) 7.62 (1) 13.46 (2)
 70-79 36.79 (11) 52.87 (5) 39.79 (4) 19.25 (2)
  > 80 11.78 (3) 12.62 (1) 11.81 (1) 11.03 (1)

Data are presented as incidence rate per 100,000 person-years among people aged 50 or older, followed in parentheses by actual number of cases observed. See Table 1 for expansion of the abbreviation.