Table 1.
Composition of the contrasted experience by recipient sex and age: recipient characteristics
| Characteristics | 0–14 yr | 15–24 yr | 25–44 yr | ≥45 yr | ||||
|---|---|---|---|---|---|---|---|---|
| Females (n=1773) | Males (n=2483) | Females (n=3869) | Males (n=4987) | Females (n=17,869) | Males (n=25,443) | Females (n=47,930) | Males (n=76,750) | |
| Person-years of observation | 10,468 | 16,063 | 18,206 | 24,655 | 116,854 | 170,142 | 237,683 | 371,029 |
| Graft failures | 659 | 728 | 1383 | 1538 | 6539 | 9476 | 16,772 | 29,467 |
| Deaths | 92 | 100 | 206 | 206 | 2091 | 3149 | 11,266 | 20,454 |
| Age at transplant (mean±SD), yr | 7.9±3.7 | 7.0±3.7 | 16.7±3.8 | 16.5±4.1 | 33.3±6.0 | 33.4±6.1 | 55.0±8.7 | 55.1±8.8 |
| Race, % | ||||||||
| White | 45 | 46 | 42 | 43 | 42 | 46 | 53 | 55 |
| Black | 19 | 23 | 24 | 27 | 33 | 32 | 26 | 25 |
| Other | 36 | 31 | 34 | 30 | 25 | 22 | 20 | 19 |
| Primary disease, % | ||||||||
| Diabetes | 0 | 0 | 1 | 0 | 13 | 12 | 24 | 28 |
| Hypertension | 1 | 1 | 5 | 5 | 17 | 27 | 22 | 27 |
| GN | 32 | 19 | 46 | 35 | 44 | 34 | 25 | 21 |
| CAKUT | 28 | 47 | 17 | 32 | 7 | 11 | 16 | 12 |
| Other | 39 | 32 | 31 | 26 | 16 | 15 | 12 | 11 |
| Missing | 0 | 0 | 1 | 1 | 2 | 2 | 1 | 1 |
| Insurer, % | ||||||||
| Private | 29 | 31 | 31 | 34 | 28 | 27 | 34 | 34 |
| Public | 70 | 69 | 68 | 65 | 72 | 72 | 65 | 65 |
| No coverage | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 |
| Missing | 0 | 0 | 0 | 0 | 1 | 1 | 0 | 0 |
| Recipient height (mean±SD), cm | 114.8±23.8 | 110.0±24.3 | 151.4±15.0 | 159.0±20.5 | 161.5±8.2 | 175.2±9.7 | 162.0±7.3 | 176.0±8.3 |
| Missing, % | 9.8 | 9.7 | 9.7 | 9.7 | 9.9 | 10.1 | 8.0 | 8.2 |
| Recipient weight (mean±SD), kg | 25.9±13.7 | 23.8±12.7 | 52.6±17.9 | 58.0±21.4 | 68.2±17.8 | 80.6±19.2 | 71.8±15.7 | 84.7±16.5 |
| Missing, % | 8.3 | 8.3 | 10.8 | 10.7 | 11.7 | 11.5 | 8.9 | 8.9 |
| Era, % | ||||||||
| 1995–1999 | 26 | 28 | 32 | 34 | 41 | 42 | 35 | 35 |
| 2000–2004 | 27 | 27 | 30 | 29 | 31 | 31 | 32 | 31 |
| 2005–2009 | 35 | 33 | 30 | 30 | 22 | 22 | 26 | 26 |
| 2010–2013 | 12 | 12 | 8 | 8 | 6 | 6 | 8 | 8 |
| Duration of dialysis before transplant (mean±SD), yr | 1.7±1.4 | 1.8±1.4 | 2.2±1.9 | 2.1±1.9 | 3.8±3.1 | 3.6±3.0 | 3.5±3.0 | 3.4±2.7 |
| Missing, % | 19.4 | 24.3 | 12.7 | 14.2 | 10.1 | 8.1 | 13.0 | 10.5 |
The number of individuals contributing observation to each age interval is indicated. However, because age was treated as a time-varying variable, individuals could contribute observation to more than one age interval. Because the unit of analysis was person-time, rather than person, the characteristics presented are weighted by a factor derived from the number of person-years of observation and number of events, and presented as weighted mean±SD, weighted median (interquartile range [IQR]), or percent (%). For example, 45% of the person-years contributed by females between 0 and 14 years were by white recipients. CAKUT, congenital anomalies of the kidneys or urinary tract.