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Table 3 Multivariate analysis of the factors associated with dispensation of selective COX-2 inhibitors versus traditional nonselective NSAIDs

From: Prescription channeling of COX-2 inhibitors and traditional nonselective nonsteroidal anti-inflammatory drugs: a population-based case–control study

 

Crude OR (95% CI)

Adjusted OR (95% CI)

Age group (years)

  

   75+

3.17 (3.01–3.34)

4.22 (3.95–4.51)

   55 to ≤74

2.86 (2.74–2.99)

3.23 (3.06–3.40)

   18–54

Reference

Reference

Female sex

1.61 (1.52–1.66)

1.52 (1.45–1.58)

Income level (lower)

0.72 (0.68–0.76)

0.90 (0.85–0.96)

Prior diagnosis of gastropathy

1.93 (1.75–2.11)

1.21 (1.08–1.36)

Prior gastrointestinal procedures

1.94 (1.71–2.22)

1.09 (0.94–1.27)

Prior dispensation of gastroprotective agents

2.37 (2.25–2.50)

1.57 (1.47–1.67)

Prior referral to gastroenterologist

1.89 (1.69–2.12)

1.23 (1.08–1.39)

Prior history of NSAID use

  

   Recent, first time

2.39 (2.14–2.66)

2.17 (1.93–2.43)

   Recent, chronic

1.58 (1.46–1.70)

1.21 (1.11–1.32)

   >1 to 3 months

1.12 (1.06–1.19)

0.95 (0.89–1.01)

   >3 to 12 months

0.93 (0.88–0.98)

0.84 (0.80–0.89)

   No use in past year

Reference

Reference

Corticosteroids

1.72 (1.62–1.82)

1.16 (1.07–1.24)

Anticoagulants

2.53 (2.15–2.98)

1.56 (1.32–1.85)

Antidepressants

1.69 (1.59–1.80)

1.37 (1.28–1.46)

Benzodiazepines

1.87 (1.78–1.95)

1.20 (1.14–1.26)

Acetaminophen

1.85 (1.76–1.94)

1.41 (1.34–1.49)

Low dose ASA

0.85 (0.81–0.89)

0.56 (0.52–0.59)

Chronic Disease Score

  

   10+

2.88 (2.65–3.14)

1.26 (1.13–1.41)

   5–9

2.21 (2.10–2.32)

1.28 (1.20–1.37)

   1–4

1.88 (1.80–1.97)

1.26 (1.19–1.33)

   0

Reference

Reference

Specialist (versus GP)

0.99 (0.94–1.04)

0.89 (0.84–0.94)

Dosage

  

   High dose

1.91 (1.80–2.03)

2.19 (2.06–2.33)

   Low dose

0.40 (0.38–0.42)

0.29 (0.27–0.30)

   Standard dose

Reference

Reference

Time period

  

   January–June

0.72 (0.68–0.76)

0.54 (0.51–0.57)

   July–Sept

1.02 (0.95–1.09)

0.99 (0.92–1.06)

   October–December

Reference

Reference

  1. All covariables included simultaneously in the models are listed in this table; models were not adjusted for any other factors. ASA, acetylsalicylic acid; CI, confidence interval; COX, cyclo-oxygenase; GP, general practitioner; NSAID, nonsteroidal anti-inflammatory drug; OR, odds ratio.