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. 2020 Jan 24;10:1368. doi: 10.3389/fneur.2019.01368

Table 3.

Differences between cases and controls who did or did not provide information regarding IM history.

Cases Controls
IM history P value for difference between groups IM history P value for difference between groups
Known Unknown Known Unknown
Women, n (%) 3,910 (74) 686 (67) < 0.0001 4,199 (77) 540 (69) < 0.0001
Swedish, n (%) 4,335 (82) 781 (76) 0.0002 4,369 (80) 572 (73) < 0.0001
Median anti-EBNA-1 antibody levels 7,802 7,566 0.48 5,603 5,703 0.72
Smoking status
Never, n (%) 2,369 (45) 405 (40) 2,914 (54) 384 (49)
Current, n (%) 1,893 (36) 432 (42) 1,481 (27) 220 (28)
Past, n (%) 1,054 (20) 187 (18) 0.08 1,036 (19) 184 (23) 0.003
Mean adolescent BMI (SD) 22.0 (4.3) 22.2 (6.1) 0.47 21.7 (4.0) 22.1 (6.2) 0.11
DRB1*15:01 status
Negative, n (%) 2,235 (42) 451 (44) 3,877 (71) 590 (75)
Heterozygotes, n (%) 2,531 (48) 476 (46) 1,408 (26) 176 (22)
Homozygotes, n (%) 550 (10) 97 (9.5) 0.20 146 (2.7) 22 (2.8) 0.05
A*02:01 status
Negative, n (%) 3,043 (57) 578 (56) 2,418 (45) 353 (45)
Heterozygotes, n (%) 1,906 (36) 376 (37) 2,386 (44) 342 (44)
Homozygotes, n (%) 367 (6.9) 70 (6.8) 0.68 627 (12) 93 (12) 0.96