Table 3. Characteristics of the recipient MSM with identified sources of transmission.

Characteristic	Recipient MSM with a phylogenetically probable transmitter (n= 617)	Recipient MSM with or without a sequence (n= 1,794)	Diagnosed MSM (n= 7,978)
Evidence for infection in the past year
Previous negative test in the past year (%)	77	76	17
Laboratory diagnosis (%)	8	7	2
Clinical diagnosis of acute infection (%)	15	17	4
Age at diagnosis (years; mean and IQR)	36.8 (29.5-42.9)	37.2 (29.9-43.5)	38.7 (31.3-45.1)
First CD4 count within 12 months of diagnosis and before ART start (cells/ml; mean and IQR)	505 (350-630)	534 (360-670)	402 (200-560)
Viral load count within 12 months of diagnosis (log10 RNA; mean and IQR)	4.9 (4.4-5.5)	4.8 (4.3-5.4)	4.7 (4.3-5.3)
In care in the Amsterdam metropolitan area (%)	45.1	43.5	43.6
Last negative test within 12 months prior to diagnosis (%)	77.0	76.1	17.1
Self-reported in country infection (%)¶	96.9	91.9	88.5

^¶Of those self-reporting a country of origin.