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Table 2 Number of patient-years of follow-up by population and treatment cohort in psoriasis patients with self-reported PsA enrolled in PSOLAR

From: Serious infections in patients with self-reported psoriatic arthritis from the Psoriasis Longitudinal Assessment and Registry (PSOLAR) treated with biologics

 

Ustekinumab

TNF inhibitorsa

Infliximab

Etanercept

Adalimumab

Non-biologic/MTXb

Non-biologic/non-MTXc

Alld

Overall population

 N

628

1413

258

481

674

98

208

2401

 Patient-years

2009

4101

756

1432

1913

366

694

7244

Duration of follow-up, years

 Mean ± SD

5.0 ± 1.9

4.9 ± 2.2

4.7 ± 2.3

4.8 ± 2.3

5.0 ± 2.1

4.2 ± 2.2

3.7 ± 2.6

4.8 ± 2.2

 Median

5.16

5.16

4.70

5.16

5.35

4.32

3.50

5.11

Incident population

 N

326

486

64

130

292

98

208

1163

 Patient-years

904

1082

125

291

665

366

694

3101

Duration of follow-up, years

 Mean ± SD

5.4 ± 1.9

5.4 ± 2.0

5.3 ± 2.0

5.5 ± 2.0

5.4 ± 2.0

4.2 ± 2.2

3.7 ± 2.6

5.0 ± 2.2

 Median

5.71

5.61

5.67

5.64

5.59

4.32

3.50

5.40

Bionaive population

 N

56

167

14

72

81

98

208

532

 Patient-years

144

419

35

180

204

366

694

1626

Duration of follow-up, years

 Mean ± SD

4.4 ± 2.0

5.2 ± 2.0

4.6 ± 1.8

5.6 ± 2.2

4.8 ± 1.9

4.2 ± 2.2

3.7 ± 2.6

4.4 ± 2.3

 Median

4.66

5.52

4.39

6.17

5.14

4.32

3.50

4.70

  1. The biologic user cohort includes patients who are on the cohort defining biologic at entry or start the biologic after entry; previous use or current exposure is allowed for MTX, but not for other systemic immunomodulators
  2. MTX methotrexate; PsA, psoriatic arthritis; PSOLAR, Psoriasis Longitudinal Assessment and Registry; SD, standard deviation
  3. aTumor necrosis factor (TNF) inhibitors include infliximab, etanercept, and adalimumab
  4. bThe non-biologic/MTX cohort includes patients who are receiving MTX at entry or start methotrexate during the registry and haven’t been exposed to other systemic immunomodulators previously or concurrently
  5. cNon-biologic, non-MTX therapies may include, but are not limited to, cyclosporine, tacrolimus, mycophenolate mofetil, azathioprine, oral corticosteroids, systemic retinoids, psoralen plus ultraviolet (UV), or UVB phototherapy. The non-biologic/non-MTX cohort includes patients who are receiving other systemic immunomodulators (including cyclosporine, tacrolimus, mycophenolate mofetil, other immunomodulators, and oral corticosteroids) at entry or start other immunomodulators after registry and who haven’t been exposed to MTX previously or concurrently; patients who receive only topical and/or phototherapy at/after registry entry are also in this cohort
  6. dIncludes “Other biologics” group (n = 54); data not shown