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Table 1 Comparison of responders (achieved sample) with all West Sussex GPs (target sample)

From: General practitioners believe that hypnotherapy could be a useful treatment for irritable bowel syndrome in primary care

Characteristic Achieved sample Target sample Test
  % n % n  
Aged 35 & under 17.4% 27 16.5% 67  
Aged 36–45 43.9% 68 41.6% 169  
Aged 46–55 31.0% 48 28.3% 115  
Aged 56 & over 6.5% 10 12.3% 50 p = 0.17 X2
Male 68.4% 106 73.4% 298  
Female 31.0% 48 26.6% 108 p = 0.20 X2
Full time 83.9% 130 88.7% 360  
Part time 15.5% 24 11.3% 46 p = 0.09 X2
Research active % (95%CI) 12.9% (7.1–18.6) 20 5.7% (3.4–7.9) 23 n.s. Test of Proportion
Training 53.50% 83 16.05% 65  
Non training 43.90% 68 83.95% 341 p < 0.001 X2
Single handed 5.2% 8 10.2% 41  
Group 92.3% 143 89.8% 365 p < 0.05 X2
Total   155   406  
  1. (Source of GP data in West Sussex: NHS Executive Oct 1997)
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