Table 2

Table 2. Distribution of embryo transfers according to the number of embryos transferred in each age category. RLA 1998-2008
IVF/ICSI embryo transfers in women aged ≤34 years old
	1998	1999	2000	2001	2002	2003	2004	2005	2006	2007	2008	Total
n	4,600	5,325	5,610	6,273	6,146	6,951	7,509	8,148	8,668	9,418	9,180	77,828
Number of embryos transferred (%)
1	8%	7%	8%	7%	7%	6%	7%	7%	8%	8%	8%	7%
2	15%	17%	18%	17%	19%	23%	27%	29%	35%	40%	45%	29%
3	28%	33%	30%	35%	37%	39%	40%	43%	43%	40%	37%	38%
≥4	49%	43%	44%	41%	37%	32%	26%	20%	15%	13%	10%	26%
IVF/ICSI embryo transfers in women aged 35 to 39 years old
	1998	1999	2000	2001	2002	2003	2004	2005	2006	2007	2008	Total
n	3,223	3,430	3,807	4,428	4,444	4,945	5,923	6,377	6,925	8,064	8,219	59,785
Number of embryos transferred (%)
1	12%	11%	12%	11%	9%	11%	10%	11%	12%	11%	12%	11%
2	16%	17%	18%	19%	20%	20%	21%	24%	29%	32%	38%	26%
3	23%	27%	26%	28%	31%	33%	39%	39%	39%	41%	38%	35%
≥4	49%	44%	44%	42%	39%	35%	30%	25%	20%	16%	12%	28%
IVF/ICSI embryo transfers in women aged ≥40 years old
	1998	1999	2000	2001	2002	2003	2004	2005	2006	2007	2008	Total
n	1,231	1,432	1,646	1,900	2,114	2,233	2,621	3,219	3,250	3,803	3,812	27,261
Number of embryos transferred (%)
1	22%	20%	17%	18%	17%	18%	19%	17%	19%	21%	21%	19%
2	22%	21%	23%	24%	21%	21%	21%	23%	24%	25%	30%	24%
3	20%	21%	21%	22%	25%	23%	27%	28%	30%	31%	33%	27%
≥4	37%	38%	39%	36%	38%	37%	34%	32%	27%	24%	16%	30%

Numbers may not add up to 100% due to rounding.