Characteristic Overall, N = 502,4091 0, N = 489,8641 1, N = 12,5451
age_at_recruit 58.0 (50.0-63.0) 58.0 (50.0-63.0) 56.0 (48.0-62.0)
    Unknown 3 3 0
age_at_assess 58.0 (50.0-63.0) 58.0 (50.0-63.0) 56.0 (48.0-62.0)
sex
    Female 273,325 (54%) 266,427 (54%) 6,898 (55%)
    Male 229,084 (46%) 223,437 (46%) 5,647 (45%)
deprivation -2.1 (-3.6-0.5) -2.1 (-3.6-0.6) -2.2 (-3.7-0.3)
    Unknown 626 610 16
ethnicity
    Prefer not to answer 1,661 (0.3%) 1,624 (0.3%) 37 (0.3%)
    Do not know 217 (<0.1%) 213 (<0.1%) 4 (<0.1%)
    White 569 (0.1%) 556 (0.1%) 13 (0.1%)
    Mixed 49 (<0.1%) 49 (<0.1%) 0 (0%)
    Asian or Asian British 43 (<0.1%) 41 (<0.1%) 2 (<0.1%)
    Black or Black British 27 (<0.1%) 26 (<0.1%) 1 (<0.1%)
    Chinese 1,573 (0.3%) 1,526 (0.3%) 47 (0.4%)
    Other ethnic group 4,557 (0.9%) 4,492 (0.9%) 65 (0.5%)
    British 442,514 (88%) 431,258 (88%) 11,256 (90%)
    Irish 13,201 (2.6%) 12,899 (2.6%) 302 (2.4%)
    Any other white background 16,326 (3.3%) 15,922 (3.3%) 404 (3.2%)
    White and Black Caribbean 619 (0.1%) 602 (0.1%) 17 (0.1%)
    White and Black African 425 (<0.1%) 413 (<0.1%) 12 (<0.1%)
    White and Asian 830 (0.2%) 797 (0.2%) 33 (0.3%)
    Any other mixed background 1,031 (0.2%) 997 (0.2%) 34 (0.3%)
    Indian 5,951 (1.2%) 5,830 (1.2%) 121 (1.0%)
    Pakistani 1,835 (0.4%) 1,802 (0.4%) 33 (0.3%)
    Bangladeshi 236 (<0.1%) 231 (<0.1%) 5 (<0.1%)
    Any other Asian background 1,814 (0.4%) 1,787 (0.4%) 27 (0.2%)
    Caribbean 4,515 (0.9%) 4,423 (0.9%) 92 (0.7%)
    African 3,393 (0.7%) 3,368 (0.7%) 25 (0.2%)
    Any other Black background 123 (<0.1%) 120 (<0.1%) 3 (<0.1%)
    Unknown 900 888 12
hh_inc
    Prefer not to answer 49,830 (10%) 48,773 (10%) 1,057 (8.5%)
    Do not know 21,300 (4.3%) 20,811 (4.3%) 489 (3.9%)
    Less than 18,000 97,180 (20%) 94,819 (20%) 2,361 (19%)
    18,000 to 30,999 108,157 (22%) 105,536 (22%) 2,621 (21%)
    31,000 to 51,999 110,751 (22%) 107,797 (22%) 2,954 (24%)
    52,000 to 100,000 86,250 (17%) 83,864 (17%) 2,386 (19%)
    Greater than 100,000 22,927 (4.6%) 22,305 (4.6%) 622 (5.0%)
    Unknown 6,014 5,959 55
emplyment
    None of the above 2,800 (0.6%) 2,726 (0.6%) 74 (0.6%)
    Prefer not to answer 2,079 (0.4%) 2,044 (0.4%) 35 (0.3%)
    In paid employment or self-employed 287,080 (57%) 279,515 (57%) 7,565 (60%)
    Retired 166,968 (33%) 163,370 (33%) 3,598 (29%)
    Looking after home and/or family 13,855 (2.8%) 13,472 (2.8%) 383 (3.1%)
    Unable to work because of sickness or disability 16,823 (3.4%) 16,273 (3.3%) 550 (4.4%)
    Unemployed 8,263 (1.6%) 8,049 (1.6%) 214 (1.7%)
    Doing unpaid or voluntary work 2,326 (0.5%) 2,259 (0.5%) 67 (0.5%)
    Full or part-time student 1,343 (0.3%) 1,296 (0.3%) 47 (0.4%)
    Unknown 872 860 12
qualifications
    None of the above 85,259 (17%) 83,636 (17%) 1,623 (13%)
    Prefer not to answer 5,490 (1.1%) 5,403 (1.1%) 87 (0.7%)
    College or University degree 161,127 (32%) 156,280 (32%) 4,847 (39%)
    A levels/AS levels or equivalent 55,308 (11%) 53,810 (11%) 1,498 (12%)
    O levels/GCSEs or equivalent 105,175 (21%) 102,667 (21%) 2,508 (20%)
    CSEs or equivalent 26,885 (5.4%) 26,254 (5.4%) 631 (5.0%)
    NVQ or HND or HNC or equivalent 32,724 (6.6%) 31,962 (6.6%) 762 (6.1%)
    Other professional qualifications eg: nursing, teaching 25,799 (5.2%) 25,232 (5.2%) 567 (4.5%)
    Unknown 4,642 4,620 22
age_cat
    [37,47] 90,200 (18%) 87,290 (18%) 2,910 (23%)
    (47,53] 87,868 (17%) 85,538 (17%) 2,330 (19%)
    (53,58] 86,917 (17%) 84,690 (17%) 2,227 (18%)
    (58,61] 70,417 (14%) 68,862 (14%) 1,555 (12%)
    (61,65] 93,139 (19%) 91,133 (19%) 2,006 (16%)
    (65,73] 73,868 (15%) 72,351 (15%) 1,517 (12%)
age_eczema 24.0 (5.0-47.0) NA (NA-NA) 24.0 (5.0-47.0)
    Unknown 489,864 489,864 0
age_psoriasis 29.0 (16.0-46.0) 28.0 (15.0-45.0) 36.0 (17.0-51.0)
    Unknown 496,835 484,579 12,256
psoriasis
    0 496,835 (99%) 484,579 (99%) 12,256 (98%)
    1 5,574 (1.1%) 5,285 (1.1%) 289 (2.3%)
age_anxiety 44.0 (32.0-53.0) 44.0 (33.0-53.0) 40.0 (27.2-50.0)
    Unknown 495,686 483,423 12,263
anxiety
    0 495,686 (99%) 483,423 (99%) 12,263 (98%)
    1 6,723 (1.3%) 6,441 (1.3%) 282 (2.2%)
age_depression 43.0 (32.0-52.0) 44.0 (33.0-52.0) 40.0 (27.0-49.0)
    Unknown 474,210 462,751 11,459
depression
    0 474,210 (94%) 462,751 (94%) 11,459 (91%)
    1 28,199 (5.6%) 27,113 (5.5%) 1,086 (8.7%)
age_smi 34.0 (25.0-44.0) 34.0 (25.0-44.0) 32.0 (25.0-42.0)
    Unknown 500,223 487,741 12,482
smi
    0 500,223 (100%) 487,741 (100%) 12,482 (99%)
    1 2,186 (0.4%) 2,123 (0.4%) 63 (0.5%)
age_asthma 30.0 (10.0-45.0) 30.0 (10.0-45.0) 13.0 (4.0-35.0)
    Unknown 444,147 435,277 8,870
asthma
    0 444,147 (88%) 435,277 (89%) 8,870 (71%)
    1 58,262 (12%) 54,587 (11%) 3,675 (29%)
age_psoarth 45.0 (35.0-52.0) 45.0 (35.0-52.0) 45.0 (35.0-53.8)
    Unknown 501,471 488,948 12,523
psoarth
    0 501,471 (100%) 488,948 (100%) 12,523 (100%)
    1 938 (0.2%) 916 (0.2%) 22 (0.2%)
age_hayfever_allergicrhinitis 21.0 (12.0-38.0) 21.0 (12.0-38.0) 15.0 (9.0-30.0)
    Unknown 474,265 464,253 10,012
hayfever_allergicrhinitis
    0 474,265 (94%) 464,253 (95%) 10,012 (80%)
    1 28,144 (5.6%) 25,611 (5.2%) 2,533 (20%)
allergic_touchscreen 115,636 (23%) 106,424 (22%) 9,212 (73%)
bmi 26.7 (24.1-29.9) 26.7 (24.2-29.9) 26.6 (23.9-29.8)
    Unknown 10,136 9,917 219
mod_exercise
    -3 2,272 (0.5%) 2,223 (0.5%) 49 (0.4%)
    -1 24,114 (4.8%) 23,567 (4.8%) 547 (4.4%)
    0 61,140 (12%) 59,395 (12%) 1,745 (14%)
    1 38,275 (7.6%) 37,126 (7.6%) 1,149 (9.2%)
    2 69,765 (14%) 67,928 (14%) 1,837 (15%)
    3 71,483 (14%) 69,740 (14%) 1,743 (14%)
    4 47,177 (9.4%) 46,010 (9.4%) 1,167 (9.3%)
    5 71,406 (14%) 69,779 (14%) 1,627 (13%)
    6 26,429 (5.3%) 25,787 (5.3%) 642 (5.1%)
    7 89,468 (18%) 87,441 (18%) 2,027 (16%)
    Unknown 880 868 12
vig_exercise
    -3 4,114 (0.8%) 4,037 (0.8%) 77 (0.6%)
    -1 22,581 (4.5%) 22,126 (4.5%) 455 (3.6%)
    0 178,181 (36%) 173,455 (35%) 4,726 (38%)
    1 66,828 (13%) 64,959 (13%) 1,869 (15%)
    2 75,032 (15%) 73,174 (15%) 1,858 (15%)
    3 65,250 (13%) 63,687 (13%) 1,563 (12%)
    4 30,689 (6.1%) 29,975 (6.1%) 714 (5.7%)
    5 32,436 (6.5%) 31,704 (6.5%) 732 (5.8%)
    6 9,426 (1.9%) 9,231 (1.9%) 195 (1.6%)
    7 16,992 (3.4%) 16,648 (3.4%) 344 (2.7%)
    Unknown 880 868 12
met_score 217,838 (54%) 212,648 (54%) 5,190 (51%)
    Unknown 100,108 97,796 2,312
age_alcohol 38.0 (25.0-47.0) 38.0 (25.0-47.0) 33.0 (24.0-43.0)
    Unknown 501,601 489,081 12,520
alcohol
    0 501,601 (100%) 489,081 (100%) 12,520 (100%)
    1 808 (0.2%) 783 (0.2%) 25 (0.2%)
alcohol_touchscreen
    Prefer not to answer 603 (0.1%) 587 (0.1%) 16 (0.1%)
    Daily or almost daily 101,753 (20%) 99,090 (20%) 2,663 (21%)
    Three or four times a week 115,422 (23%) 112,448 (23%) 2,974 (24%)
    Once or twice a week 129,269 (26%) 126,168 (26%) 3,101 (25%)
    One to three times a month 55,840 (11%) 54,409 (11%) 1,431 (11%)
    Special occasions only 57,996 (12%) 56,633 (12%) 1,363 (11%)
    Never 40,627 (8.1%) 39,642 (8.1%) 985 (7.9%)
    Unknown 899 887 12
age_insomnia 52.0 (44.8-58.0) 52.0 (45.0-58.0) 51.0 (44.0-58.0)
    Unknown 500,301 487,833 12,468
insomnia
    0 500,301 (100%) 487,833 (100%) 12,468 (99%)
    1 2,108 (0.4%) 2,031 (0.4%) 77 (0.6%)
insomnia_touchscreen
    Prefer not to answer 612 (0.1%) 594 (0.1%) 18 (0.1%)
    Never/rarely 120,753 (24%) 117,887 (24%) 2,866 (23%)
    Sometimes 238,787 (48%) 232,827 (48%) 5,960 (48%)
    Usually 141,364 (28%) 137,675 (28%) 3,689 (29%)
    Unknown 893 881 12
sleep_duration 7.0 (6.0-8.0) 7.0 (6.0-8.0) 7.0 (6.0-8.0)
    Unknown 889 877 12
smoking
    Prefer not to answer 2,057 (0.4%) 2,014 (0.4%) 43 (0.3%)
    Never 273,473 (55%) 266,678 (55%) 6,795 (54%)
    Previous 173,024 (35%) 168,653 (34%) 4,371 (35%)
    Current 52,962 (11%) 51,638 (11%) 1,324 (11%)
    Unknown 893 881 12
socsup_activity
    0 154,046 (31%) 150,153 (31%) 3,893 (31%)
    1 348,363 (69%) 339,711 (69%) 8,652 (69%)
socsup_visits
    Prefer not to answer 1,563 (0.3%) 1,534 (0.3%) 29 (0.2%)
    Do not know 1,716 (0.3%) 1,676 (0.3%) 40 (0.3%)
    Almost daily 57,756 (12%) 56,414 (12%) 1,342 (11%)
    2-4 times a week 152,010 (31%) 148,248 (31%) 3,762 (30%)
    About once a week 176,376 (35%) 171,923 (35%) 4,453 (36%)
    About once a month 66,477 (13%) 64,688 (13%) 1,789 (14%)
    Once every few months 33,147 (6.7%) 32,260 (6.6%) 887 (7.1%)
    Never or almost never 7,405 (1.5%) 7,220 (1.5%) 185 (1.5%)
    No friends/family outside household 1,305 (0.3%) 1,269 (0.3%) 36 (0.3%)
    Unknown 4,654 4,632 22
healthrating
    Prefer not to answer 365 (<0.1%) 359 (<0.1%) 6 (<0.1%)
    Do not know 2,203 (0.4%) 2,155 (0.4%) 48 (0.4%)
    Excellent 81,845 (16%) 80,117 (16%) 1,728 (14%)
    Good 288,965 (58%) 281,808 (58%) 7,157 (57%)
    Fair 105,342 (21%) 102,472 (21%) 2,870 (23%)
    Poor 22,769 (4.5%) 22,045 (4.5%) 724 (5.8%)
    Unknown 920 908 12
year_entry
    2006 3,796 (0.8%) 3,786 (0.8%) 10 (<0.1%)
    2007 49,808 (9.9%) 48,173 (9.8%) 1,635 (13%)
    2008 187,157 (37%) 182,338 (37%) 4,819 (38%)
    2009 173,407 (35%) 168,920 (34%) 4,487 (36%)
    2010 88,241 (18%) 86,647 (18%) 1,594 (13%)
age_hes_anxiety 52.5 (45.0-58.6) 52.5 (45.0-58.6) 49.7 (43.8-56.0)
    Unknown 499,929 487,453 12,476
hes_anxiety
    0 499,929 (100%) 487,453 (100%) 12,476 (99%)
    1 2,480 (0.5%) 2,411 (0.5%) 69 (0.6%)
age_hes_depression 51.3 (44.1-57.8) 51.4 (44.2-57.8) 50.2 (40.1-55.4)
    Unknown 496,794 484,418 12,376
hes_depression
    0 496,794 (99%) 484,418 (99%) 12,376 (99%)
    1 5,615 (1.1%) 5,446 (1.1%) 169 (1.3%)
age_hes_eczema 53.8 (45.5-59.8) 54.0 (46.0-59.9) 52.6 (44.6-59.0)
    Unknown 501,704 489,367 12,337
hes_eczema
    0 501,704 (100%) 489,367 (100%) 12,337 (98%)
    1 705 (0.1%) 497 (0.1%) 208 (1.7%)
age_hes_psoriasis 54.3 (47.0-59.4) 54.3 (46.9-59.4) 56.1 (50.4-59.8)
    Unknown 501,196 488,689 12,507
hes_psoriasis
    0 501,196 (100%) 488,689 (100%) 12,507 (100%)
    1 1,213 (0.2%) 1,175 (0.2%) 38 (0.3%)
age_hes_smi 48.3 (41.4-55.0) 48.3 (41.5-55.2) 45.7 (39.1-53.3)
    Unknown 501,043 488,530 12,513
hes_smi
    0 501,043 (100%) 488,530 (100%) 12,513 (100%)
    1 1,366 (0.3%) 1,334 (0.3%) 32 (0.3%)
date_mh_survey 17,050.0 (17,038.0-17,065.0) 17,050.0 (17,038.0-17,065.0) 17,050.0 (17,038.0-17,065.0)
    Unknown 345,065 336,918 8,147
ever_anxious_worried
    Prefer not to answer 786 (0.5%) 766 (0.5%) 20 (0.5%)
    Do not know 9,672 (6.1%) 9,314 (6.1%) 358 (8.1%)
    No 107,860 (69%) 105,112 (69%) 2,748 (62%)
    Yes 38,995 (25%) 37,724 (25%) 1,271 (29%)
    Unknown 345,096 336,948 8,148
ever_depressed_sad
    Prefer not to answer 406 (0.3%) 396 (0.3%) 10 (0.2%)
    No 70,984 (45%) 69,232 (45%) 1,752 (40%)
    Yes 85,923 (55%) 83,288 (54%) 2,635 (60%)
    Unknown 345,096 336,948 8,148
ever_soughthelp
    Prefer not to answer 228 (0.1%) 224 (0.1%) 4 (<0.1%)
    Do not know 309 (0.2%) 302 (0.2%) 7 (0.2%)
    No 95,329 (61%) 92,975 (61%) 2,354 (54%)
    Yes 61,447 (39%) 59,415 (39%) 2,032 (46%)
    Unknown 345,096 336,948 8,148
happy
    Prefer not to answer 129 (<0.1%) 128 (<0.1%) 1 (<0.1%)
    Do not know 777 (0.5%) 747 (0.5%) 30 (0.7%)
    Extremely happy 15,652 (9.9%) 15,328 (10%) 324 (7.4%)
    Very happy 69,435 (44%) 67,637 (44%) 1,798 (41%)
    Moderately happy 62,597 (40%) 60,672 (40%) 1,925 (44%)
    Moderately unhappy 6,909 (4.4%) 6,653 (4.4%) 256 (5.8%)
    Very unhappy 1,382 (0.9%) 1,331 (0.9%) 51 (1.2%)
    Extremely unhappy 432 (0.3%) 420 (0.3%) 12 (0.3%)
    Unknown 345,096 336,948 8,148
1 Median (IQR) or Frequency (%)