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. 2017 Dec 28;3(2):e000588. doi: 10.1136/rmdopen-2017-000588

Table 3.

Prevalence and incidence rates of comorbidities observed among patients with psoriatic arthritis

Comorbid condition† Psoriatic arthritis population
(n=94 302)
Continuously enrolled population* (n=47 438) Psoriatic arthritis population
(n=94 302)
Continuously enrolled population*
(n=47 438)
Prevalence‡, n (%) Incidence§, n (%) Rate per 100 patient-years Incidence§, n (%) Rate per 100
patient-years
Hyperlipidaemia¶ 44 768 (47.47) 23 811 (50.19) 23 156 (35.0) 27.11 8202 (30.02) 21.31
Hypertension¶ 44 583 (47.28) 23 447 (49.43) 20 599 (31.25) 23.91 6773 (24.25) 17.15
Depression 19 995 (21.2) 10 656 (22.46) 12 853 (15.44) 10.16 5671 (14.34) 9.50
Type 2 diabetes mellitus¶ 19 037 (20.19) 10 036 (21.16) 11 794 (13.49) 8.72 5558 (13.14) 8.57
Fibromyalgia 15 635 (16.58) 8306 (17.51) 10 453 (12.36) 8.07 4848 (11.96) 7.94
Obesity¶ 15 510 (16.45) 8331 (17.56) 8742 (10.65) 7.05 3425 (8.69) 5.78
Ischaemic heart disease¶ 10 918 (11.58) 6005 (12.66) 7256 (8.10) 5.19 3704 (8.44) 5.54
Cardiac dysrhythmias¶ 9756 (10.35) 5510 (11.62) 6819 (7.73) 5.01 3022 (7.05) 4.66
Osteoporosis 8802 (9.33) 4665 (9.83) 6415 (7.16) 4.63 3017 (6.85) 4.56
Peripheral vascular disease 7298 (7.74) 4202 (8.86) 6275 (6.91) 4.40 3352 (7.49) 4.94
Infections** 7159 (7.59) 4058 (8.55) 5656 (6.26) 3.98 2967 (6.66) 4.37
Cerebrovascular disease¶ 6903 (7.32) 3953 (8.33) 5478 (6.02) 3.84 2829 (6.31) 4.14
Major depression 6686 (7.09) 3655 (7.7) 4730 (5.14) 3.27 2391 (5.23) 3.43
Solid tumours, including melanoma 5963 (6.32) 3340 (7.04) 4343 (4.80) 3.04 2098 (4.69) 3.08
Gout 5673 (6.02) 3278 (6.91) 3757 (4.12) 2.62 1789 (3.97) 2.60
Non-alcoholic liver disease 5440 (5.77) 2930 (6.18) 3587 (3.88) 2.46 1780 (3.86) 2.53
Chronic renal insufficiency 4867 (5.16) 2637 (5.56) 3466 (3.85) 2.44 1777 (4.00) 2.63
Non-melanoma skin cancers 3707 (3.93) 2069 (4.36) 3041 (3.29) 2.08 1548 (3.36) 2.21
Congestive heart failure 3698 (3.92) 2157 (4.55) 2852 (3.07) 1.94 1539 (3.32) 2.18
Atherosclerosis¶ 3355 (3.56) 1942 (4.09) 2803 (3.02) 1.91 1524 (3.3) 2.16
Uveitis 1466 (1.55) 790 (1.67) 949 (1.02) 0.64 424 (0.91) 0.59
Ulcerative colitis 1206 (1.28) 656 (1.38) 801 (0.86) 0.54 365 (0.778) 0.51
Haematological malignancies 1079 (1.14) 604 (1.27) 771 (0.82) 0.52 412 (0.88) 0.57
Crohn’s disease 1070 (1.13) 604 (1.27) 626 (0.67) 0.42 303 (0.64) 0.42
Acute myocardial infarction**†† 524 (0.56) 292 (0.62) 506 (0.54) 0.34 281 (0.59) 0.39
Suicide and suicidal ideation 453 (0.48) 253 (0.53) 434 (0.46) 0.29 245 (0.52) 0.34
Any stroke**‡‡ 445 (0.47) 255 (0.54) 420 (0.45) 0.28 234 (0.49) 0.32
Ischaemic stroke**‡‡ 342 (0.36) 198 (0.42) 332 (0.35) 0.22 189 (0.40) 0.26

*Continuous enrolment with a minimum of 12 months: 6 months before the index date and 6 months after the index date.

†Includes all claims and any diagnosis field unless specified otherwise.

‡Prevalence is the proportion of occurrences for the specific comorbidity during the study period divided by the total population.

§Incidence is the proportion of new occurrences of the specific comorbidity divided by the population at risk for developing the comorbidity after the index date (ie, patients who had a claim for the comorbidity before the index date are excluded).

¶Medical conditions that can be associated with an increased risk of major adverse cardiac event.

**Includes only serious medical conditions (ie, those with an inpatient diagnosis).

††Acute myocardial infarction was based on the inpatient primary discharge diagnosis claims (ie, the primary discharge diagnosis).

‡‡Cases that likely represent a major adverse cardiac event.