Table 2.
Factors affecting patients’ adherence to scheduled visits in total patients and patients in visits under 1 year and above 1 year
| Characteristic | Total follow-up | First-year follow-up | Beyond the first-year follow-up | |||
|---|---|---|---|---|---|---|
| OR (95% CI) | p-value | OR (95% CI) | p-value | OR (95% CI) | p-value | |
| Sex (male) | 0.93 (0.80 to 1.07) | 0.30 | 0.89 (0.76 to 1.03) | 0.11 | 0.68 (0.57 to 0.82) | < 0.001 |
| Age at surgery | 1.02 (1.01 to 1.03) | < 0.001 | 1.01 (1.00 to 1.02) | < 0.001 | 1.00 (1.00 to 1.01) | 0.36 |
| BMI3 at first visit | 1.01 (1.00 to 1.02) | 0.003 | 1.02 (1.01 to 1.03) | < 0.001 | 1.02 (1.00 to 1.03) | 0.007 |
| Education (diploma or less) | 1.12 (0.99 to 1.27) | 0.067 | 1.05 (0.93 to 1.19) | 0.42 | 1.37 (1.18 to 1.60) | < 0.001 |
| Region | ||||||
| Tehran City | 11 | 1 | ||||
| Tehran Province | 1.16 (0.98 to 1.36) | 0.083 | 1.17 (0.99 to 1.38) | 0.066 | ||
| Other | 0.82 (0.70 to 0.95) | 0.008 | 0.69 (0.59 to 0.80) | < 0.001 | ||
| Smoke history (smoker) | 0.78 (0.64 to 0.94) | 0.011 | 0.82 (0.68 to 0.99) | 0.038 | 0.71 (0.56 to 0.90) | 0.006 |
| Hypertension at baseline | 1.05 (0.90 to 1.23) | 0.53 | 1.01 (0.86 to 1.18) | 0.93 | 0.86 (0.71 to 1.05) | 0.14 |
| Type 2 diabetes mellitus at baseline | 0.85 (0.72 to 1.01) | 0.064 | 0.92 (0.78 to 1.08) | 0.30 | 0.90 (0.74 to 1.10) | 0.30 |
| Dyslipidemia at baseline | 1.09 (0.96 to 1.23) | 0.18 | 1.25 (1.10 to 1.41) | < 0.001 | 1.51 (1.30 to 1.75) | < 0.001 |
| Low back pain at baseline | 1.08 (0.96 to 1.22) | 0.21 | 1.05 (0.93 to 1.19) | 0.40 | 1.08 (0.94 to 1.24) | 0.30 |
| Knee pain at baseline | 0.98 (0.87 to 1.11) | 0.77 | 1.00 (0.89 to 1.14) | 0.96 | ||
| Cardiovascular disease | 1.04 (0.77 to 1.40) | 0.80 | 0.60 (0.41 to 0.86) | 0.007 | ||
| Psychiatric problems at baseline | 1.35 (1.16 to 1.57) | < 0.001 | ||||
| Waiting time (year) | 1.17 (1.04 to 1.32) | 0.012 | ||||
| Length of stay | ||||||
| One day | 1 | 1 | 1 | |||
| 2–3 days | 0.61 (0.51 to 0.73) | < 0.001 | 0.64 (0.54 to 0.77) | < 0.001 | 1.22 (1.00 to 1.49) | 0.051 |
| More than 3 days | 0.58 (0.40 to 0.85) | 0.005 | 0.57 (0.39 to 0.83) | 0.003 | 1.64 (1.10 to 2.48) | 0.017 |
| Surgery type | ||||||
| GS | 1 | 1 | 1 | |||
| OAGB | 1.14 (0.99 to 1.32) | 0.073 | 1.34 (1.15 to 1.55) | < 0.001 | 2.17 (1.76 to 2.69) | < 0.001 |
| RYGB | 0.98 (0.84 to 1.15) | 0.82 | 1.33 (1.13 to 1.56) | < 0.001 | 2.06 (1.65 to 2.57) | < 0.001 |
| Readmission | 2.29 (1.70 to 3.10) | < 0.001 | ||||
| Marital status | ||||||
| Single | 1 | 1 | ||||
| Live without partner | 0.74 (0.56 to 0.98) | 0.033 | 0.85 (0.60 to 1.19) | 0.34 | ||
| Live with partner | 0.85 (0.72 to 1.00) | 0.051 | 0.90 (0.74 to 1.10) | 0.30 | ||
| Type of hospital (general) | 1.28 (1.10 to 1.50) | 0.002 | 2.02 (1.76 to 2.32) | < 0.001 | 1.48 (1.27 to 1.73) | < 0.001 |
1Reference group
OR odds ratio, CI confidence interval, BMI body mass index, GS gastric sleeve, OAGB one-anastomosis gastric bypass, RYGB Roux-en-Y gastric bypass