Table 3.

Demographic data and follow-up time for the patients who underwent SIJ fusion surgery

	Successful	Partly successful	Unsuccessful
Number of patients	24	12	14
Age (years)	60 (57–63)	58 (52–64)	55 (50–60)
Follow-up (years)	24 (22–23)	22 (20–23)	23 (21–25)
Body mass index	27 (25–29)	29 (25–33)	26 (24–28)
Education (years)	13 (12–15)	11 (10–13)	11 (10–12)

The three subgroups were defined by the patient’s worse joint, based on the 1-year outcomes

The means are presented with a 95 % confidence interval