Background
Methods
Study design and setting
Study population
Measurements
Statistical analysis
Results
Characteristics | Number (n) = 980 |
---|---|
Age (years), median (IQR) | 48 (40–56) |
Female sex | 718 (73.6) |
Race/ethnicitya
| |
Non-Hispanic white | 512 (54.8) |
Non-Hispanic black | 254 (27.2) |
Hispanic | 142 (15.2) |
Other | 26 (2.8) |
Primary insurance | |
Medicare | 240 (24.5) |
Medicaid | 108 (11.0) |
Private | 560 (57.2) |
Other | 71 (7.3) |
Quartiles for median household income of patient's ZIP code | |
1 (lowest) | 301 (31.1) |
2 | 265 (27.4) |
3 | 235 (24.3) |
4 (highest) | 167 (17.3) |
Season of bariatric surgery | |
January–March | 204 (20.8) |
April–June | 234 (23.9) |
July–September | 281 (28.7) |
October–December | 261 (26.6) |
State | |
California | 600 (61.2) |
Florida | 368 (37.6) |
Nebraska | 12 (1.2) |
Time interval and outcome | Number of patients | Risk, % (95% CI) | aOR (95% CI)a
|
P value |
---|---|---|---|---|
(n = 980) | ||||
13–24 months before bariatric surgery | ||||
ED visit or hospitalizationb
| 174 | 17.8 (15.4–20.2) | Reference | – |
ED visitc
| 130 | 13.3 (11.1–15.4) | Reference | – |
Hospitalizationd
| 44 | 4.5 (3.2–5.8) | Reference | – |
1–12 months before bariatric surgery | ||||
ED visit or hospitalizationb
| 178 | 18.2 (15.7–20.6) | 1.02 (0.83–1.27) | 0.83 |
ED visitc
| 130 | 13.3 (11.1–15.4) | 1.00 (0.78–1.28) | 0.99 |
Hospitalizationd
| 50 | 5.1 (3.7–6.5) | 1.14 (0.76–1.73) | 0.53 |
0–12 months after bariatric surgery | ||||
ED visit or hospitalizationb
| 103 | 10.5 (8.6–12.4) | 0.58 (0.45–0.74) | <0.0001 |
ED visitc
| 91 | 9.3 (7.5–11.1) | 0.69 (0.53–0.91) | 0.008 |
Hospitalizationd
| 14 | 1.4 (0.7–2.2) | 0.31 (0.17–0.57) | <0.0001 |
13–24 months after bariatric surgery | ||||
ED visit or hospitalizationb
| 126 | 12.9 (10.8–15.0) | 0.71 (0.57–0.90) | 0.005 |
ED visitc
| 100 | 10.2 (8.3–12.1) | 0.76 (0.58–0.99) | 0.04 |
Hospitalizationd
| 30 | 3.1 (2.0–4.1) | 0.68 (0.42–1.08) | 0.10 |
Number of patients | Risk, % (95% CI)a
| aOR (95% CI)b
|
P value | |
---|---|---|---|---|
Time interval | (n = 325) | |||
13–24 months before bariatric surgery | 59 | 18.2 (13.9–22.4) | Reference | – |
1–12 months before bariatric surgery | 52 | 16.0 (12.0–20.0) | 0.87 (0.59–1.29) | 0.49 |
0–12 months after bariatric surgery | 29 | 8.9 (5.8–12.0) | 0.47 (0.30–0.74) | 0.001 |
13–24 months after bariatric surgery | 41 | 12.6 (9.0–16.2) | 0.68 (0.45–1.02) | 0.06 |
Time interval and surgery | Number of patients | Risk, % (95% CI)a
| aOR (95% CI)b
|
P value |
---|---|---|---|---|
Cholecystectomy | (n = 378) | |||
13–24 months before surgery | 64 | 16.9 (13.1–20.7) | Reference | – |
1–12 months before surgery | 129 | 34.1 (29.3–38.9) | 2.13 (1.56–2.91) | <0.0001 |
0–12 months after surgery | 135 | 35.7 (30.9–40.6) | 2.24 (1.65–3.06) | <0.0001 |
13–24 months after surgery | 67 | 17.7 (13.9–21.6) | 1.05 (0.74–1.49) | 0.79 |
Hysterectomy | (n = 112) | |||
13–24 months before surgery | 20 | 17.9 (10.7–25.1) | Reference | – |
1–12 months before surgery | 42 | 37.5 (28.4–46.6) | 2.26 (1.29–3.95) | 0.004 |
0–12 months after surgery | 34 | 30.4 (21.7–39.0) | 1.78 (1.002–3.18) | 0.049 |
13–24 months after surgery | 21 | 18.8 (11.4–26.1) | 1.05 (0.56–1.99) | 0.87 |
Spinal fusion | (n = 61) | |||
13–24 months before surgery | 11 | 18.0 (8.1–28.0) | Reference | – |
1–12 months before surgery | 20 | 32.8 (20.7–44.9) | 1.92 (0.89–4.14) | 0.10 |
0–12 months after surgery | 17 | 27.9 (16.3–39.4) | 1.60 (0.73–3.53) | 0.24 |
13–24 months after surgery | 11 | 18.0 (8.1–28.0) | 1.00 (0.42–2.37) | 0.99 |
Mastectomy | (n = 30) | |||
13–24 months before surgery | 5 | 16.7 (25.1–30.8) | Reference | – |
1–12 months before surgery | 11 | 36.7 (18.4–55.0) | 2.34 (0.78–6.98) | 0.13 |
0–12 months after surgery | 9 | 30.0 (12.6–47.4) | 1.87 (0.61–5.78) | 0.28 |
13–24 months after surgery | 5 | 16.7 (25.1–30.8) | 1.00 (0.28–3.55) | 0.99 |