Table 4.
Proportion reaching excess BMI > 50% at 5 years after surgery.
| N | EBMIL > 50% | Unadjusted OR (95% CI) | Adjusted ORa (95% CI) | adjusted pa | |
|---|---|---|---|---|---|
| Age | |||||
| <30 | 1877 | 1553 (82.7%) | Reference | ||
| 30–40 | 3474 | 2862 (82.4%) | 0.98 (0.84–1.13) | ||
| 40–50 | 4303 | 3402 (79.1%) | 0.79 (0.68–0.91) | ||
| 50–60 | 2798 | 2167 (77.4%) | 0.72 (0.62–0.83) | ||
| >60 | 823 | 588 (71.4%) | 0.52 (0.43–0.63) | ||
| BMI | |||||
| <40 | 4617 | 3992 (86.5%) | Reference | ||
| 40–50 | 7521 | 5855 (77.8%) | 0.55 (0.50–0.61) | ||
| 50–60 | 1048 | 676 (64.5%) | 0.28 (0.24–0.33) | ||
| >60 | 89 | 49 (55.1%) | 0.19 (0.13–0.29) | ||
| Sex | |||||
| Female | 10,308 | 8430 (81.8%) | Reference | ||
| Male | 2967 | 2142 (72.2%) | 0.58 (0.53–0.64) | ||
| Comorbidity, n (%) | |||||
| Sleep apnoea, n (%) | 1275 | 913 (71.6%) | 0.61 (0.54–0.70) | ||
| Hypertension, n (%) | 3574 | 2647 (74.1%) | 0.64 (0.58–0.70) | ||
| Diabetes, n (%) | 2604 | 1828 (70.2%) | 0.52 (0.47–0.57) | ||
| Dyslipidaemia, n (%) | 1412 | 1021 (72.3%) | 0.63 (0.56–0.72) | ||
| Dyspepsia/GERD, n (%) | 1053 | 820 (77.9%) | 0.89 (0.77–1.04) | ||
| Depression, n (%) | 1731 | 1256 (72.6%) | 0.63 (0.56–0.71) | ||
| Cardiovascular comorbidity, n (%) | 705 | 520 (73.8%) | 0.70 (0.59–0.84) | ||
| Education | |||||
| Primary education < 9 years | 2232 | 1746 (78.2%) | 0.89 (0.79–1.00) | 0.98 (0.87–1.10) | 0.733 |
| Secondary education | 8154 | 6535 (80.1%) | Reference | Reference | Reference |
| Higher education < 3 years | 1408 | 1112 (79.0%) | 0.93 (0.81–1.07) | 0.89 (0.77–1.02) | 0.096 |
| Higher education > 3years | 1425 | 1146 (80.4%) | 1.02 (0.88–1.17) | 0.93 (0.80–1.08) | 0.321 |
| Profession | |||||
| Senior officials and management | 479 | 405 (84.6%) | 1.19 (0.92–1.54) | 1.42 (1.08–1.87) | 0.011 |
| Professionals and technicians | 2815 | 2253 (80.0%) | 0.87 (0.77–0.98) | 1.01 (0.86–1.15) | 0.864 |
| Clerical support workers | 1291 | 1031 (79.9%) | 0.86 (0.74–1.00) | 0.94 (0.80–1.11) | 0.475 |
| Services and sales workers | 4534 | 3726 (82.2%) | Reference | Reference | Reference |
| Manual labour | 1773 | 1350 (76.1%) | 0.69 (0.61–0.79) | 1.04 (0.89–1.22) | 0.611 |
| Elementary occupation | 904 | 713 (78.9%) | 0.81 (0.68–0.97) | 0.97 (0.80–1.16) | 0.712 |
| Disposable income | |||||
| <20th percentile | 3183 | 2464 (77.4%) | Reference | Reference | Reference |
| 20–50th percentile | 4442 | 3537 (79.6%) | 1.14 (1.02–1.27) | 1.06 (0.94–1.19) | 0.359 |
| 50–80th percentile | 3982 | 3221 (80.9%) | 1.24 (1.10–1.39) | 1.11 (0.99–1.26) | 0.085 |
| >80th percentile | 1231 | 1231 (81.1%) | 1.25 (1.07–1.46) | 1.20 (1.02–1.41) | 0.026 |
| Residence | |||||
| Large city and municipality | 4930 | 3920 (79.5%) | Reference | Reference | Reference |
| Medium-sized town and municipality | 4260 | 3367 (79.0%) | 0.97 (0.88–1.07) | 1.07 (0.96–1.19) | 0.230 |
| Small town, urban area, rural municipality | 4070 | 3270 (80.3%) | 1.05 (0.95–1.17) | 1.12 (1.01–1.25) | 0.039 |
| Marital status | |||||
| Married/partner | 6012 | 4841 (80.5%) | Reference | Reference | Reference |
| Divorced/widow/widower | 2085 | 1649 (79.1%) | 0.91 (0.81–1.03) | 0.99 (0.87–1.12) | 0.821 |
| Single | 5167 | 4071 (78.8%) | 0.90 (0.82–0.99) | 0.91 (0.82–1.01) | 0.067 |
| Financial aid | |||||
| None | 10,196 | 8292 (81.3%) | Reference | Reference | Reference |
| Retirement pension | 236 | 166 (70.3%) | 0.54 (0.41–0.72) | 0.84 (0.63–1.14) | 0.267 |
| Disability pension/early retirement | 2145 | 1591 (74.2%) | 0.66 (0.59–0.74) | 0.81 (0.71–0.91) | 0.0004 |
| Social benefits | 698 | 523 (74.9%) | 0.69 (0.57–0.82) | 0.75 (0.62–0.91) | 0.003 |
| Heritage | |||||
| Swedish born, Swedish descendant | 10,665 | 8604 (80.7%) | Reference | Reference | Reference |
| Swedish born, non-Swedish descendant | 709 | 572 (80.7%) | 1.00 (0.82–1.21) | 0.94 (0.77–1.15) | 0.561 |
| Born outside Sweden | 1889 | 1384 (73.3%) | 0.66 (0.59–0.73) | 0.64 (0.57–0.72) | <0.0001 |
Results of logistic regression model on the proportion of patients achieving satisfactory weight loss, defined as >50% excess BMI loss, 5 years after primary gastric bypass.
aLogistic regression model, adjusted for age, preoperative BMI, sex, sleep apnoea, hypertension, T2DM, dyslipidaemia, dyspepsia/GERD, depression, and cardiovascular comorbidity.