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Table 1 Baseline demographic and clinical characteristics of the pooled study populations

From: Maintenance treatment with esomeprazole following initial relief of non-steroidal anti-inflammatory drug-associated upper gastrointestinal symptoms: the NASA2 and SPACE2 studies

 

Pooled population

Characteristic

Placebo (n = 209)

Esomeprazole 20 mg (n = 201)

Esomeprazole 40 mg (n = 194)

Male/female gender, percentage

27.3:72.7

21.4:78.6

24.2: 75.8

Age in years, mean (standard deviation)

57.1 (13.4)

54.4 (11.9)

55.7 (13.6)

Type of chronic condition, percentage

   

   Rheumatoid arthritis

24.4

18.4

20.6

   Osteoarthritis

43.1

45.3

42.8

   Other chronic condition

32.5

36.3

36.6

Time since first diagnosis of chronic condition in years, median

9

7

9

Helicobacter pylori status (histology), percentagea

   

   Negative

95.7

93.0

95.9

   Positive

3.3

6.5

3.1

   Unknown

1.0

0.5

1.0

NSAID type, percentage

   

   Non-selective

64.1

65.7

67.0

   Selective COX-2 inhibitor

35.9

34.3

33.0

Study drug in acute study, percentage

   

   Placebo

24.4

29.3

32.5

   Esomeprazole 20 mg

43.1

32.8

36.1

   Esomeprazole 40 mg

32.5

37.8

31.4

  1. aH. pylori status derived from the acute studies (NASA1 [Nexium Anti-inflammatory Symptom Amelioration] and SPACE1 [Symptom Prevention by Acid Control with Esomeprazole]). COX-2, cyclo-oxygenase-2; NSAID, non-steroidal anti-inflammatory drug.