Table 2

Characteristics of subjects who did or did not achieve remission of type 2 diabetes following surgery

People with pre-existing T2D who underwent surgery
No remission (n=45)Remission (n=179)P value
Male (n, %)21490.013
Age at referral (years)*47.5 (8.3)44.7 (8.7)0.053
Ethnicity (%)0.384
 European21 (46.7)68 (38.0)
 Pasifika12 (26.7)38 (21.2)
 Māori7 (15.6)43 (24.0)
 Other5 (11.1)30 (16.8)
BMI at referral (kg/m2)*42.8 (5.3)47.3 (7.0)0.000
Change in BMI at 1 year (kg/m2)*−11.8 (3.1)−13.9 (4.7)0.005
Change in BMI at 3 years (kg/m2)*−10.8 (2.4)−11.1 (4.8)0.866
Change in BMI at 5 years (kg/m2)*−9.9 (3.8)−9.0 (5.3)0.649
Mean HbA1c at referral (mmol/mol)*79 (15)63 (17)0.000
 (%)*9.4 (3.5)7.9 (3.7)
On insulin at referral, n (%)36 (80)34 (19.0)0.000
Roux-en-Y bypass, n (%)32 (71)86 (48)0.006
Duration of diabetes before surgery (years)10.1 (4.6)6.1 (4.8)0.000
  • *Results expressed as mean (±SD).

  • BMI, body mass index; hbA1c, glycated hemoglobin; T2D, type 2 diabetes.