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Table 2 Comparison of the proportion of examinations per nursing home bed in areas with and without mobile radiography services

From: Impact of mobile radiography services in nursing homes on the utilisation of diagnostic imaging procedures

  With mobile radiography service Without mobile radiography service Diff. (% point) 95% Confidence interval P value
n Proportion of examinations per bed (%) n Proportion of examinations per bed (%) Min. Max.
Nursing home beds 14,500   10,305      
All examinations 7306 50.00 3760 36.00 14.0 12.7 15.10 < 0.001
Plain radiographs 6638 45.80 2962 28.70 17.10 15.8 18.20 < 0.001
CT 368 2.50 483 4.70 −2.20 −2.6 −1.70 < 0.001
Ultrasound 206 1.40 225 2.20 −0.80 −1.0 −0.40 < 0.001
MRI 53 0.37 43 0.42 −0.05 − 0.2 0.10 0.587
Nuclear medicine 27 0.20 32 0.30 −0.10 − 0.3 0.01 0.065
Other 14 0.10 15 0.15 −0.05 − 0.15 0.05 0.355