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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
Total number of patients271132100.1-139100.0-  
Age (years)
Number of general practitioners632934