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Table 1 Study population, number and characteristics

From: Comparison of medical costs generated by IBS patients in primary and secondary care in the Netherlands

 

Primary care patients

Primary care controls

Secondary care patients

Secondary care controls

Total number

N

326

652

9274

18548

Female gender

N / %

230 / 70 %

460 / 70 %

6506 / 70 %

13012 / 70 %

Patients with data before diagnosis

N

133

266

5972

11944

Patients with data after diagnosis

N

326

652

7538

15076

Age

Average (SD)

49 (17)

49 (17)

53 (18)

53 (18)