Table 1 Baseline characteristics of the patients who had bariatric surgery compared to those who did not (n = 411).
Variable | All (n = 411) | Surgery group (186) | Non-surgery group (225) | P-value |
|---|---|---|---|---|
Age (years), mean (SD) | 48.3 (8.5) | 49.0 (8.1) | 47 (8.7) | 0.095 |
Duration of diabetes (years) median (IQR) | 4 (1.7–8.4) | 5.0 (2.0–9.0) | 3.0 (1.1–7.7) | <0.001a |
Sex | ||||
Male (%) | 151 (36.7) | 64 (34.4) | 87 (38.7) | 0.373 |
Female (%) | 260 (63.3) | 122 (65.6) | 138 (61.3) | |
Referral BMI, mean (SD) | 47.4 (7.9) | 47.1 (8.1) | 47.6 (7.7) | 0.473 |
Referral HbA1c, mean (SD) | 7.8 (1.5) | 7.7 (1.6) | 7.8 (1.5) | 0.316 |
BMI Obesity Classes | 0.811 | |||
Class 1 (30 to < 35) (%) | 9 (2.2) | 5 (2.7) | 4 (1.8) | |
Class 2 (35 to < 40) (%) | 59 (14.4) | 26 (14.0) | 33 (14.7) | |
Class 3 (≥40) (%) | 343 (83.4) | 155 (83.4) | 188 (83.5) | |
Insulin use | ||||
No (%) | 336 (81.8) | 155 (83.3) | 181 (80.4) | 0.450 |
Yes (%) | 75 (18.2) | 31 (16.7) | 44 (19.6) | |
Other comorbidities | ||||
Hypertension | 0.332 | |||
No (%) | 157 (53.2) | 103 (55.4) | 54 (49.5) | |
Yes (%) | 138 (46.8) | 83 (44.6) | 55 (50.5) | |
Missing = 116 | ||||
Depression | ||||
No (%) | 137 (46.6) | 96 (51.6) | 41 (37.9) | 0.024a |
Yes (%) | 157 (53.4) | 90 (48.4) | 67 (62.1) | |
Missing = 117 | ||||
Sleep apnoea | 0.712 | |||
No (%) | 339 (82.5) | 152 (81.7) | 187 (83.1) | |
Yes (%) | 72 (17.5) | 34 (18.3) | 38 (16.9) | |
Deprivation quintile | 0.313 | |||
SIMD 1 (most deprived) (%) | 177 (43.1) | 74 (39.8) | 103 (45.9) | |
SIMD 2 (%) | 91 (22.2) | 41 (22 1) | 50 (22.3) | |
SIMD 3 (%) | 75 (18.3) | 33 (17.7) | 42 (18.8) | |
SIMD 4 (%) | 39 (9.5) | 21 (11.3) | 18 (8.0) | |
SIMD 5 (least deprived) (%) | 28 (6.8) | 17 (9.1) | 11 (4.9) | |
Missing = 1 | ||||
