Table 4.
Crude incidence rate of fibrosing ILD and progressive fibrosing ILD by age and sex
| Characteristic | Number of new cases (%) | Person-years at risk | Crude incidence per 100,000 PY (95% CI) |
|---|---|---|---|
| Fibrosing ILD | |||
| Overall study persons | 23,577 | 53,416,575.09 | 44.14 (43.57, 44.70) |
| Age category, years | |||
| 18–39 | 699 (3.0) | 18,697,610.47 | 3.74 (3.46, 4.02) |
| 40–49 | 1565 (6.6) | 10,576,534.84 | 14.80 (14.06, 15.53) |
| 50–59 | 4064 (17.2) | 12,116,258.50 | 33.54 (32.51, 34.57) |
| 60–69 | 5748 (24.4) | 7,517,305.06 | 76.46 (74.49, 78.44) |
| 70–79 | 5733 (24.3) | 2,681,331.63 | 213.81 (208.28, 219.35) |
| 80 + | 5768 (24.5) | 1,827,534.58 | 315.62 (307.47, 323.76) |
| Gender | |||
| Male | 11,118 (47.2) | 25,205,477.71 | 44.11 (43.29, 44.93) |
| Female | 12,459 (52.8) | 28,211,097.38 | 44.16 (43.39, 44.94) |
| Progressive fibrosing ILD | |||
| Overall study persons | 14,722 (100) | 53,436,940.50 | 27.55 (27.11, 28.00) |
| Age category, years | |||
| 18–39 | 382 (2.6) | 18,698,182.64 | 2.04 (1.84, 2.25) |
| 40–49 | 852 (5.8) | 10,577,953.22 | 8.05 (7.51, 8.60) |
| 50–59 | 2353 (16.0) | 12,119,899.76 | 19.41 (18.63, 20.20) |
| 60–69 | 3629 (24.7) | 7,522,234.76 | 48.24 (46.67, 49.81) |
| 70–79 | 3884 (26.4) | 2,686,127.79 | 144.59 (140.05, 149.14) |
| 80 + | 3622 (24.6) | 1,832,542.35 | 197.65 (191.21, 204.09) |
| Gender | |||
| Male | 7142 (48.5) | 25,214,279.74 | 28.33 (27.67, 28.98) |
| Female | 7580 (51.5) | 28,222,660.76 | 26.86 (26.25, 27.46) |
CI confidence interval, ILD interstitial lung disease, PY patient-years