Table 3: Marginal effects calculated after generalized linear model estimation.

Prevalent casesIncident cases
value value

Age 18–39−320 0.227 −1040 0.045
Age 40–64−155 0.555 −673 0.144
Age 65+ReferenceReference
Female−70 0.456 −177 0.332
Region
 Eastern Anatolia region 226 0.622 402 0.707
 Southeastern Anatolia regionReferenceReference
 Marmara region−203 0.549 −282 0.740
 Aegean region−204 0.481 −633 0438
 Mediterranean region−350 0.312 −513 0.534
 Black Sea region−150 0.698 −178 0.839
 Central Anatolia region 48 0.890 −13 0.987
Elixhauser index 2
129 0.669
Individual comorbidities
 Diabetics 184 0.238 −46 0.906
 Respiratory 288 0.002 168 0.428
 Allergy−187 0.336 −234 0.442
 Cardiovascular 131 0.234 320 0.243
Medications
 Biologics 6258 0 5518 0.000
 NSAIDs−53 0.588 −263 0.239
 DMARDs−56 0.599 101 0.653

NSAIDs: nonsteroidal anti-inflammatory drugs; DMARDs: disease-modifying antirheumatic drugs.