1.12. Analysis.
Comparison 1 Surgery versus non‐surgery, Outcome 12 Other weight change data.
| Other weight change data | ||||
|---|---|---|---|---|
| Study | Outcome | Surgery | No surgery | P value |
| Dixon 2008 | Waist to hip ratio at 2 years, cm, mean (SD) | 0.90 (0.06) | 0.95 (0.08) | Difference in change ‐0.05 (95% CI ‐0.07 to ‐0.007); P = 0.02 |
| Dixon 2008 | Waist circumference at 2 years, cm, mean (SD) | 95.8 (10.3) | 112.7 (10.3) | Difference (in change) ‐13.9 (95% CI ‐19.0 to ‐8.7); P < 0.001 |
| Dixon 2008 | ||||
| Dixon 2008 | ||||
| Dixon 2008 | ||||
| Dixon 2008 | ||||
| Dixon 2008 | ||||
| Dixon 2008 | ||||
| Dixon 2012 | Waist circumference at 2 years, cm, mean (95% CI) | 119.8 (112 to 126) | 124 (119 to 128) | Not reported |
| Dixon 2012 | Change in waist circumference, baseline to 2 years, cm, mean (95% CI) | ‐18.1 (‐12.7 to ‐23.6) | ‐2.9 (‐5.6 to 0.0) | ‐15.2 (‐21.1 to ‐9.33); P = 0.01 |
| Dixon 2012 | Neck circumference at 2 years, cm, mean (95% CI) | 42 (39.1 to 45) | 44.6 (6.0) | Not reported |
| Dixon 2012 | Change in neck circumference, baseline to 2 years, cm, mean (95% CI) | ‐5.2 (‐8.3 to ‐2.07) | ‐1.8 (‐3.3 to ‐0.23) | ‐3.4 (‐7.5 to 0.65); P = 0.10 |
| Dixon 2012 | ||||
| Dixon 2012 | ||||
| Dixon 2012 | ||||
| Dixon 2012 | ||||
| Ikramuddin 2013 | Waist circumference, cm, at 12 mo, mean (SD) | 90 (11) | 105 (11) | Difference ‐15 (95% CI ‐18 to ‐11) |
| Ikramuddin 2013 | ||||
| Ikramuddin 2013 | ||||
| Ikramuddin 2013 | ||||
| Ikramuddin 2013 | ||||
| Ikramuddin 2013 | ||||
| Ikramuddin 2013 | ||||
| Ikramuddin 2013 | ||||
| Mingrone 2012 | Waist, cm at 2 years, mean (SD) | 98.58 (13.06) | 116.33 (12.14) | P < 0.001 |
| Mingrone 2012 | Waist, cm change from baseline at 2 years, mean (SD) | ‐19.91 (8.44) | ‐7.69 (7.80) | |
| Mingrone 2012 | ||||
| Mingrone 2012 | ||||
| Mingrone 2012 | ||||
| Mingrone 2012 | ||||
| Mingrone 2012 | ||||
| Mingrone 2012 | ||||
| O'Brien 2006 | Proportion achieving excess weight loss (> 50%) at 2 years (%) | 33/39 (85%) | 8/31 (26%) | P < 0.001 |
| O'Brien 2006 | Proportion achieving satisfactory weight loss (> 25%) at 2 years (%) |
39/40 (98%) | 14/40 (35%) | P < 0.001 |
| O'Brien 2006 | ||||
| O'Brien 2006 | ||||
| O'Brien 2006 | ||||
| O'Brien 2006 | ||||
| O'Brien 2006 | ||||
| O'Brien 2006 | ||||
| Schauer 2012 | Waist at 12 months, cm, mean (SD): LRYGB | 93.4 (9.0) | 108.8 (10.8) | P < 0.001 |
| Schauer 2012 | Waist at 12 months, cm, mean (SD): LSG | 93.5 (8.8) | 108.8 (10.8) | P < 0.001 |
| Schauer 2012 | Change in waist at 12 months, cm, mean (SD): LRYGB | ‐23.0 (8.3) | ‐4.1 (8.5) | P < 0.001 |
| Schauer 2012 | Change in waist at 12 months, cm, mean (SD): LSG | 20.1 (9.0) | ‐4.1 (8.5) | P < 0.001 |
| Schauer 2012 | Waist:hip ratio at 12 months, mean (SD): LRYGB | 0.91 (0.06) | 0.93 (0.08) | P = 0.12 |
| Schauer 2012 | Waist:hip ratio at 12 months, mean (SD): LSG | 0.92 (0.07) | 0.93 (0.08) | P = 0.07 |
| Schauer 2012 | Change in waist:hip ratio at 12 months, mean (SD): LRYGB | ‐0.05 (0.06) | ‐0.01 (0.04) | P < 0.001 |
| Schauer 2012 | Change in waist:hip ratio at 12 months, mean (SD): LSG | ‐0.05 (0.07) | ‐0.01 (0.04) | P = 0.02 |