Table 2. Mortality risk ratio from idiopathic pulmonary fibrosis + similars, by age group, time period of death, and gender, 1979-2014, Brazil.
| Variable | Deaths | Person-years | SMR per 100,000 person-years (95% CI)* | RR (95% CI)** |
|---|---|---|---|---|
| Age group, years | ||||
| < 50 | 3,169 | 3.793.719.975 | 0.08 (0.06-0.09) | 0.32 (0.29-0.37) |
| 50-54 | 1,370 | 527.300.904 | 0.26 (0.24-0.27) | 1.00 |
| 55-59 | 2,056 | 471.744.483 | 0.44 (0.41-0.45) | 1.68 (1.55-1.79) |
| 60-64 | 2,880 | 403.565.378 | 0.71 (0.68-0.74) | 2.75 (2.53-2.89) |
| 65-69 | 3,644 | 324.334.270 | 1.12 (1.09-1.16) | 4.32 (4.01-4.55) |
| 70-74 | 4,688 | 269.397.864 | 1.74 (1.69-1.79) | 6.70 (6.18-7.00) |
| 75-79 | 5,142 | 197.385.496 | 2.61 (2.54-2.68) | 10.03 (9.32-10.54) |
| 80-84 | 4,356 | 136.691.704 | 3.19 (3.09-3.28) | 12.27 (11.3-12.81) |
| 85 or older | 4,787 | 114.175.170 | 4.19 (4.07-4.31) | 16.14 (14.44-16.36) |
| Time period of death | ||||
| 1979-1984 | 1,308 | 190.755.799 | 0.69 (0.64-0.71) | 1.00 |
| 1985-1990 | 1,904 | 190.755.799 | 1.00 (0.95-1.03) | 1.46 (1.36-1.56) |
| 1991-1995 | 2,147 | 190.755.799 | 1.13 (1.09-1.16) | 1.64 (1.53-1.75) |
| 1996-2000 | 3,605 | 190.755.799 | 1.89 (1.87-1.91) | 2.76 (2.58-2.94) |
| 2001-2005 | 5,641 | 190.755.799 | 2.96 (2.95-3.00) | 4.31 (4.07-4.58) |
| 2006-2010 | 8,704 | 190.755.799 | 4.56 (4.48-4.61) | 6.65 (6.28-7.05) |
| 2011-2014 | 8,783 | 190.755.799 | 4.60 (4.58-4.63) | 6.71 (6.34-7.12) |
| Gendera | ||||
| Male | 15,782 | 1.112.062.549 | 1.42 (1.38-1.45) | 1.00 |
| Female | 16,302 | 1.128.472.320 | 1.44 (1.40-1.46) | 1.02 (0.99-1.04) |
SMR: standardized mortality rate; and RR: risk ratio. aEight cases lacked information on gender.
*95% CIs were calculated assuming a Poisson distribution and using Byar approximation. &95% CIs were calculated using Taylor series.