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. 2019 Jan 16;364:k5222. doi: 10.1136/bmj.k5222

Table 1.

Characteristics of sample, stratified by p.C282Y genotype (homozygotes, heterozygotes, and no p.C282Y mutations, sex and age

Characteristics Men Women
Homozygotes Heterozygotes No p.C282Y mutations* Homozygotes Heterozygotes No p.C282Y mutations*
All ages (40-70 years):
 No (%) 1294 (0.6) 29 536 (14.3) 175 539 (85.1) 1596 (0.65) 34 908 (14.3) 208 370 (85.1)
 Mean (SD) age (years) 56.85 (8.18) 57.01 (8.12) 57.00 (8.11) 56.94 (7.98) 56.48 (7.97) 56.61 (7.94)
 No (%) consuming alcohol daily† 324 (25.1) 7544 (25.6) 46 342 (26.4) 256 (16.0) 5765 (16.5) 35 191 (16.90)
 No (%) with haemochromatosis baseline diagnosis 156 (12.1) 56 (0.2) 55 (0.03) 54 (3.4) 17 (0.05) 16 (0.01)
Older ages (60-70 years):
 No (%) 593 (0.6) 13 599 (14.3) 80 945 (85.1) 719 (0.7) 14 905 (14.1) 90 214 (85.2)
 Mean (SD) age (years) 64.19 (2.84) 64.29 (2.85) 64.25 (2.86) 64.26 (2.82) 64.02 (2.86) 64.04 (2.84)
 No (%) consuming alcohol daily† 173 (29.2) 3962 (29.2) 24 277 (30.0) 125 (17.4) 2696 (18.1) 16 714 (18.5)
 No (%) with haemochromatosis baseline diagnosis 81 (13.7) 31 (0.2) 35 (0.04) 34 (4.7) 7 (0.05) 5 (0.01)
*

No p.C282Y mutations, irrespective of p.H63D status.

0.07% of participants with missing data were excluded.