Skip to main content

Table 1 Basic characteristics of 262 patients in the Swedish National Patient Register included in the review

From: Validating surgical procedure codes for inflammatory bowel disease in the Swedish National Patient Register

No. of reviewed patients262
No. females/males (%)119 (45)/143 (55)
Mean age (range) at first validated procedure code38 (14–74)
No. of hospitals included27
Mean patient chart coverage (years)5.4
No. of patients with surgical procedures validated53
No. of separate surgical occasions validated103
No. of surgical procedure codes validated155
Mean no. of surgical procedure codes (SD) per hospital6.1 (13.2)
Mean no. of surgical procedure codes (SD) per patient3.1 (4.5)
Mean no. of surgical sessions (SD) per patient1.9 (2.6)
  1. NPR National patient register, SD Standard deviation