Table 2.
Variablea | Parameter estimate | SE | ||
---|---|---|---|---|
| ||||
Pooled individual-level data analysis | Distributed regression | Pooled individual-level data analysis | Distributed regression | |
| ||||
Exposureb | −0.05312 | −0.05312 | 0.00105 | 0.00105 |
Age | ||||
20–44 | −0.01662 | −0.01662 | 0.00106 | 0.00106 |
45–64 | Reference | Reference | Reference | Reference |
65–80 | 0.01339 | 0.01339 | 0.00218 | 0.00218 |
Male sex | 0.02162 | 0.02162 | 0.00133 | 0.00133 |
Race | ||||
White | Reference | Reference | Reference | Reference |
Black | 0.02873 | 0.02873 | 0.00130 | 0.00130 |
Other | 0.00883 | 0.00883 | 0.00153 | 0.00153 |
Hispanic ethnicity | 0.00227 | 0.00227 | 0.00147 | 0.00147 |
Year of procedure | ||||
2005–2009 | −0.00319 | −0.00319 | 0.00218 | 0.00218 |
2010 | −0.00301 | −0.00301 | 0.00169 | 0.00169 |
2011 | −0.00326 | −0.00326 | 0.00144 | 0.00144 |
2012 | Reference | Reference | Reference | Reference |
2013 | 0.00384 | 0.00384 | 0.00141 | 0.00141 |
2014 | 0.00569 | 0.00569 | 0.00145 | 0.00145 |
2015 | 0.03664 | 0.03664 | 0.00288 | 0.00288 |
Comorbidity scorec,d | 0.00576 | 0.00576 | 0.00069243 | 0.00069243 |
Baseline weightc,d | −0.00025096 | −0.00025096 | 0.00000921 | 0.00000921 |
Baseline weight proximityd,e | 0.00012330 | 0.00012330 | 0.00001430 | 0.00001430 |
Smokingc | −0.00657 | −0.00657 | 0.00163 | 0.00163 |
Days of hospitalizationc,d | 0.00017944 | 0.00017944 | 0.00006129 | 0.00006129 |
Diagnosis ofc | ||||
Anxiety | 0.00036721 | 0.00036721 | 0.00119 | 0.00119 |
Deep vein thrombosis | 0.00245 | 0.00245 | 0.00530 | 0.00530 |
Depression | 0.00412 | 0.00412 | 0.00107 | 0.00107 |
Diabetes | 0.01914 | 0.01914 | 0.00107 | 0.00107 |
Dyslipidemia | 0.00169 | 0.00169 | 0.00103 | 0.00103 |
Eating disorder | −0.00247 | −0.00247 | 0.00236 | 0.00236 |
GERD | −0.00132 | −0.00132 | 0.00095329 | 0.00095329 |
Hypertension | 0.01454 | 0.01454 | 0.00124 | 0.00124 |
Infertility | 0.00842 | 0.00842 | 0.00521 | 0.00521 |
Kidney disease | 0.00059350 | 0.00059350 | 0.00176 | 0.00176 |
NAFLD | −0.00652 | −0.00652 | 0.00150 | 0.00150 |
Osteoarthritis | −0.00253 | −0.00253 | 0.00337 | 0.00337 |
PCOS | 0.00118 | 0.00118 | 0.00212 | 0.00212 |
Psychosis | 0.00006296 | 0.00006296 | 0.00226 | 0.00226 |
Pulmonary embolism | 0.00722 | 0.00722 | 0.00414 | 0.00414 |
Sleep apnea | −0.00153 | −0.00153 | 0.00098117 | 0.00098117 |
Substance use disorder | −0.00729 | −0.00729 | 0.00310 | 0.00310 |
Notes:
Also adjusted for sites (35 indicator variables; results not shown for brevity);
Roux-en-Y gastric bypass vs sleeve gastrectomy;
measured in the year prior to the surgery;
modeled as a continuous variable;
number of days between baseline weight measurement and index procedure.
Abbreviations: GERD, gastroesophageal reflux disease; NAFLD, nonalcoholic fatty liver disease; PCORnet, National Patient-Centered Clinical Research Network; PCOS, polycystic ovarian syndrome; SE, standard error.