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. 2022 Mar 8;72(720):e528–e537. doi: 10.3399/BJGP.2021.0595

Table 2.

Characteristics of people with RA and IBD not experiencing blood-test abnormalities over 2 years

Characteristic People with RA on methotrexate (prevalent and incident) not experiencing any NICE-specified blood-test abnormalities,an (%)b All people with RA on methotrexate (prevalent and incident), n (%)b People with IBD on azathioprine (prevalent and incident) not experiencing any of the NICE-specified blood-test abnormalities,a n (%)b All people with IBD on azathioprine (prevalent and incident), n (%)b
Total 1585 (52.8) 3001 657 (56.5) 1162

Age, years
  Median (range) 63 (53–71) 66 (56–75) 43 (32–54) 44 (32–58)
  Mean (SD) 61 (14) 65 (14) 44 (15) 46 (17)

Age group, years
  18–39 113 (71.1) 159 279 (57.9) 482
  40–59 547 (63.8) 857 275 (65.0) 423
  60–79 805 (50.9) 1583 100 (43.5) 230
  ≥80 119 (29.6) 402 Suppressedc 27|

Sex
  Male 495 (50.9) 972 330 (58.1) 568
  Female 1089 (53.7) 2029 329 (55.4) 594

Socioeconomic status, IMD quintile
  1 (most deprived) 208 (52.7) 395 85 (52.5) 162
  2 248 (52.9) 469 102 (53.7) 190
  3 294 (52.4) 561 131 (54.1) 242
  4 355 (53.2) 667 173 (64.1) 270
  5 (least deprived) 466 (52.4) 889 157 (56.1) 280
  Missing 13 (65.0) 20 11 (61.1) 18

Long-term conditions at baseline
  CKD 60 (14.9) 403 10 (21.3) 47
  CVDd 148 (29.9) 495 16 (23.9) 67
  Heart failure 26 (15.5) 168 Suppressedc 22
  Diabetes 142 (34.0) 418 33 (33.3) 99
  Hypertension 524 (41.2) 1271 70 (37.8) 185
  Osteoarthritis 429 (39.9) 1076 42 (40.4) 104
a

NICE-recommended test thresholds: white blood count ≥3.5×109/L; mean cell volume ≤105 fL; neutrophils ≥1.6×109/L; platelets ≥140×109/L; eosinophils ≤0.5×109/L; alanine aminotransferase ≤100 U/L; aspartate transaminase ≤100 U/L; albumin ≥30 g/L; and estimated glomerular filtration rate ≥60 ml/min/1.73 m2.

b

Unless otherwise stated.

c

Data not provided for confidentiality reasons, due to small numbers in this category.

d

Includes ischaemic heart disease, cerebrovascular disease, and peripheral vascular disease. CKD = chronic kidney disease. CVD = cardiovascular disease. IBD = inflammatory bowel disease. IMD = Index of Multiple Deprivation. NICE = National Institute for Health and Care Excellence. RA = rheumatoid arthritis. SD = standard deviation.