TABLE 1.
Descriptive Characteristics for the Matched Population
| Total Matched Population, n = 335,901 | Bariatric Surgery Cohort, n = 111,967 | Obesity Cohort, n = 111,967 | Nonobesity Cohort, n = 111,967 | P | |
|---|---|---|---|---|---|
| Age, n (%) | |||||
| 34 or less | 80,436 (23.95) | 26,812 (23.95) | >0.999 | ||
| 35–44 | 85,128 (25.34) | 28,376 (25.34) | |||
| 45–54 | 87,345 (26.00) | 29,115 (26.00) | |||
| 55–64 | 61,644 (18.35) | 20,548 (18.35) | |||
| 65–74 | 20,910 (6.23) | 6970 (6.23) | |||
| 75 or more | 438 (0.13) | 146 (0.13) | |||
| Gender, n (%) | |||||
| Female | 255,981 (76.21) | 85,327 (76.21) | >0.999 | ||
| Male | 79,920 (23.79) | 26,640 (23.79) | |||
| Comorbidities, n (%) | |||||
| Hypertension | 114,483 (34.08) | 38,161 (34.08) | >0.999 | ||
| Coronary artery disease | 426 (0.13) | 142 (0.13) | >0.999 | ||
| Anemia deficiency | 34,038 (10.13) | 11,346 (10.13) | >0.999 | ||
| Hypothyroidism | 43,923 (13.08) | 14,641 (13.08) | >0.999 | ||
| Diabetes mellitus, type II | 61,896 (18.43) | 20,632 (18.43) | >0.999 | ||
| Peptic ulcer disease | 9534 (2.84) | 3178 (2.84) | >0.999 | ||
| Gastroesophageal reflux disease | 97,191 (28.93) | 32,397 (28.93) | >0.999 | ||
| Nonalcoholic fatty liver disease | 10,416 (3.10) | 3472 (3.10) | >0.999 | ||
| Rheumatoid arthritis | 4413 (1.31) | 1471 (1.31) | >0.999 | ||
| Osteoarthritis | 56,178 (16.72) | 18,726 (16.72) | >0.999 | ||
| Obstructive sleep apnea | 63,840 (19.01) | 21,280 (19.01) | >0.999 | ||
| Smoking | 35,622 (10.60) | 11,874 (10.60) | >0.999 | ||
| 5-y UE neuropathy outcomes, n (%) | |||||
| Any neuropathy | 16,225 (4.83) | 5153 (4.60) | 5860 (5.23) | 5212 (4.65) | <0.0005* |
| Carpal tunnel syndrome | 12,863 (3.83) | 4022 (3.59) | 4713 (4.21) | 4128 (3.69) | <0.0005* |
| Other median nerve neuropathy | 515 (0.15) | 160 (0.14) | 190 (0.17) | 165 (0.15) | 0.0881 |
| Radial nerve neuropathy | 229 (0.07) | 83 (0.07) | 66 (0.06) | 80 (0.07) | 0.3398 |
| Ulnar nerve neuropathy | 2618 (0.78) | 888 (0.79) | 891 (0.80) | 839 (0.75) | 0.3737 |
| 2 or more neuropathies | 2231 (0.66) | 763 (0.68) | 839 (0.75) | 629 (0.56) | <0.0005* |
*Statistically significant value (P < 0.05).
UE indicates upper extremity.