Skip to main content

Table 3 MRI-scanners in Norway, by geographic region

From: Magnetic resonance imaging of the knee in Norway 2002–2004 (national survey): rapid increase, older patients, large geographic differences

  Mean* (rate = mean per million persons in region) Change in rate# from 2002 to 2004, %
  2002 2003 2004  
North 7.5 (16.2) 8.0 (17.3) 8.5 (18.4) + 13
Central 8.5 (13.3) 13.5 (21.1) 16.0 (24.9) + 87
West 7.0 (7.6) 9.5 (10.2) 13.0 (13.8) + 83
South/East 43.5 (17.4) 52.5 (20.9) 58.5 (23.1) + 33
Norway 66.5 (14.7) 83.5 (18.3) 96.0 (21.0) + 43
  1. MRI = magnetic resonance imaging.
  2. * Mean number of scanners each year is mean of numbers 1. January same and next year.
  3. # Mantel-Haenszel chi-square test for linear trend in change: p = 0.03 for Norway, p = 0.81 for region North and p = 0.16–0.19 for the other regions.