Registry report
Registry of the International Society for Heart and Lung Transplantation: Twenty-second Official Adult Lung and Heart-Lung Transplant Report—2005

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Statistical methods

Survival rates were calculated by the Kaplan-Meier method and compared with the log-rank test; survival graphs were truncated when the remaining number of recipients was ≤10. Multivariate analyses were performed by Cox proportional hazards regression. The results of the multivariate analyses are reported as relative risks (RRs), with a corresponding p-value or 95% confidence limit. RR >1.0 indicates that the factor was associated with a higher probability of the event; conversely, RR <1.0 means

Centers and Activity

The number of centers reporting lung transplantations each year is shown in Figure 1. Since 1997, the number of centers reporting lung transplantations has been relatively stable in the range of 108 to 114. The number of transplantations in 2003 decreased slightly from an all-time high of 1,767 in 2002. Nevertheless, an overall gradual growth in activity has continued since the rapid expansion of the earlier years subsided in 1996.

The annual number of single-lung transplantations has been

Centers and Activity

The number of centers reporting heart-lung transplantations has decreased by approximately 40% since 1994 from a maximum of 63 to 37 in 2003 (Figure 1). Concomitantly, the decline in annual activity has continued, and only 74 heart-lung transplantations were recorded for 2003 (Figure 24). Only 5 centers reported ≥5 heart-lung transplantations per year for the period January 1, 1998 to June 30, 2004, and 65% of the transplantations were distributed among 76 different centers, which had activity

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