Induced abortions of women living with HIV in Finland 1987–2019: a national register study

Table 1 Characteristics of the study population

Population	All		Divided by year of HIV diagnosis^a
Population			1987–1997		1998–2008		2009–2019
Number of women	1017		138	13.6%	413	40.6%	466	45.8%
Median age at HIV diagnosis	30.7		29.0		30.4		32.0
Country of birth
Finland	428	42.1%	97	70.3%	205	49.6%	126	27.0%
Other	586	57.6%	41	29.7%	208	50.4%	337	72.3%
Unknown	3	0.3%	0		0		3	0.6%
Diagnosed before immigration	159	15.6%	10	7.2%	45	10.9%	104	22.3%
Mode of transmission
Sex	809	79.5%	118	85.5%	289	70.0%	402	86.3%
IDU^b	99	9.7%	8	5.8%	81	19.6%	10	2.1%
Vertical^c	13	1.3%	3	2.2%	8	1.9%	2	0.4%
Blood transfusion^c	11	1.1%	2	1.4%	2	0.5%	7	1.5%
Unknown	85	8.4%	7	5.1%	33	8.0%	45	9.7%
Hepatitis C antibodies
Positive	112	11.0%	6	4.3%	69	16.7%	37	7.9%
Negative	647	63.6%	87	63.0%	227	55.0%	333	71.5%
Unknown	258	25.4%	45	32.6%	117	28.3%	96	20.6%
Hepatitis B S-antigen
Positive	32	3.1%	2	1.4%	14	3.4%	16	3.4%
Negative	728	71.6%	91	65.9%	282	68.3%	355	76.2%
Unknown	257	25.3%	45	32.6%	117	28.3%	95	20.4%
CD4+ cell count at diagnosis available^d	498	49.0%	5	3.6%	203	49.2%	290	62.2%
≥500	164	32.9%	1		85	41.9%	78	26.9%
350–499	90	18.1%	3		39	19.2%	48	16.6%
200–349	110	22.1%	1		42	20.7%	67	23.1%
<200	134	26.9%			37	18.2%	97	33.4%
AIDS^e	154	15.1%	30	21.7%	61	14.8%	63	13.5%
AIDS within 90 days of HIV	72	7.1%	3	2.2%	29	7.0%	40	8.6%
Deceased during follow-up	63	6.2%	18	13.0%	33	8.0%	12	2.6%

^aIf diagnosed before immigration, year of immigration. 1987–1997 includes 3 women diagnosed 1984–86
^bIntravenous drug use
^cOnly two of the vertical transmissions and one of the blood transfusion transmissions occurred in Finland
^dMeasured in Finland 0–90 days after HIV diagnosis. Percentages reported of those with the CD4+ cell count at diagnosis available
^eDiagnosed with an illness characteristic of AIDS (e.g., opportunistic infection). Does not include cases with CD4 + cell count < 200 in the absence of a concurrent AIDS-defining illness

ISSN: 1471-2393