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. 2021 Dec 2;6:34. Originally published 2021 Feb 18. [Version 2] doi: 10.12688/wellcomeopenres.16616.2

Table 4a. Antibody test result, split by generation (ALSPAC-interpreted).

G0 – parents (%) G1 – offspring
(+partners; %)
Total (%)
Negative 2,501 (94.5%) 1,995 (92.2%) 4,496 (93.5%)
IgM positive 36 (1.4%) 21 (1%) 57 (1.2%)
IgG positive 67 (2.5%) 101 (4.7%) 168 (3.5%)
IgG and IgM positive 14 (0.5%) 19 (0.9%) 33 (0.7%)
Invalid 21 (0.8%) 23 (1.1%) 44 (0.9%)
Can’t tell result 7 (0.3%) 3 (0.1%) 10 (0.2%)
Not sure, as photo
not taken
0 (0%) 1 (0.05%) 1 (0.02%)
Total 2,646 2,163 4,809