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Table 1 Study population in a randomised controlled trial at Swedish primary heath care centres. The confidence intervals indicate the 95% confidence interval for the difference between the proportion in the intervention group (n = 132) and in the control group (n = 139)

From: Does early identification of high work related stress affect pharmacological treatment of primary care patients? - analysis of Swedish pharmacy dispensing data in a randomised control study

 TotalInterventionControlDifference in proportion95% CI for difference in proportion
  n%n%  
Total number of patients271132100.1-139100.0-  
Sex
 Women1858866.79769.83.1−0.080-0.14
 Men864433.34230.23.1−0.080-0.14
Age (years)
 18–29452015.22518.02.8−0.061-0.12
 30–491275541.77251.810.1−0.22-0.017
 50–65995743.24230.2130.016–0.24
Number of general practitioners632934