Table 1.
Demographic, Anthropometric, and Procedural Characteristics of the Participants.*
| Characteristic | All Participants (N = 228) | Gastric Bypass (N = 161) | Sleeve Gastrectomy (N = 67) |
|---|---|---|---|
| Age — yr | 17±1.6 | 17±1.5 | 17±1.7 |
| Age group — no. (%) | |||
| 13–15 yr | 66 (29) | 42 (26) | 24 (36) |
| 16–17 yr | 94 (41) | 71 (44) | 23 (34) |
| 18–19 yr | 68 (30) | 48 (30) | 20 (30) |
| Sex — no. (%) | |||
| Female | 171 (75) | 126 (78) | 45 (67) |
| Male | 57 (25) | 35 (22) | 22 (33) |
| Race or ethnic background — no. (%)† | |||
| White | 164 (72) | 119 (74) | 45 (67) |
| Black | 50 (22) | 35 (22) | 15 (22) |
| Asian | 1 (<1) | 1 (1) | 0 |
| American Indian or Alaskan native | 1 (<1) | 0 | 1 (1) |
| More than one race or ethnic background | 12 (5) | 6 (4) | 6 (9) |
| Hispanic ethnic background — no. (%)† | 16 (7) | 15 (9) | 1 (1) |
| Household income — no./total no. (%) | |||
| <$25,000 | 83/218 (38) | 51/156 (33) | 32/62 (52) |
| $25,000–$49,999 | 44/218 (20) | 31/156 (20) | 13/62 (21) |
| $50,000–$74,999 | 38/218 (17) | 28/156 (18) | 10/62 (16) |
| ≥$75,000 | 53/218 (24) | 46/156 (29) | 7/62 (11) |
| Caregiver level of education — no./total no. (%) | |||
| Less than high school | 23/221 (10) | 11/157 (7) | 12/64 (19) |
| High-school graduate | 68/221 (31) | 47/157 (30) | 21/64 (33) |
| Some college | 89/221 (40) | 67/157 (43) | 22/64 (34) |
| College graduate | 41/221 (19) | 32/157 (20) | 9/64 (14) |
| Mean weight (95% CI) | |||
| Baseline — kg | 149 (145 to 153) | 151 (146 to 156) | 144 (136 to 152) |
| 3 Yr‡ — kg | 108 (103 to 113) | 109 (104 to 115) | 105 (96 to 113) |
| Absolute change‡ — kg | –41 (–45 to –37) | –42 (–47 to –38) | –38 (–44 to –31) |
| Percent change‡ | –27 (–29 to –25) | –28 (–30 to –25) | –26 (–30 to –22) |
| Model-estimated percent change | –28 (–26 to –30) | –29 (–26 to –31) | –27 (–23 to –31) |
| Mean height (95% CI) | |||
| Baseline — cm | 167.9 (166.7 to 169.1) | 167.5 (166.2 to 168.9) | 168.7 (166.1 to 171.2) |
| 3 Yr§ — cm | 168.3 (166.9 to 169.7) | 168.3 (166.7 to 169.8) | 168.5 (165.1 to 171.9) |
| Absolute change§ — cm | 0.51 (0.23 to 0.80) | 0.54 (0.20 to 0.88) | 0.44 (–0.12 to 1.00) |
| Percent change§ | 0.31 (0.14 to 0.48) | 0.32 (0.12 to 0.53) | 0.25 (–0.07 to 0.57) |
| Model-estimated percent change | 0.29 (0.09 to 0.49) | 0.31 (0.12 to 0.51) | 0.27 (–0.07 to 0.60) |
| Mean BMI (95% CI) | |||
| Baseline | 53 (51 to 54) | 54 (52 to 55) | 50 (48 to 52) |
| 3 Yr¶ | 38 (37 to 40) | 39 (37 to 41) | 37 (34 to 39) |
| Absolute change¶ | –15 (–16 to –13) | –15 (–17 to –14) | –13 (–15 to –11) |
| Percent change¶ | –28 (–30 to –25) | –28 (–31 to –25) | –26 (–30 to –22) |
| Model-estimated percent change | –29 (–27 to –31) | –29 (–27 to –32) | –27 (–23 to –31) |
Plus-minus values are means ±SD. CI denotes confidence interval.
Race and ethnic background were self-reported.
Data are for 183 participants in total (131 participants who underwent gastric bypass and 52 participants who underwent sleeve gastrectomy), with values from 7 patients (6 participants who underwent gastric bypass and 1 participant who underwent sleeve gastrectomy) excluded because of pregnancy.
Data are for 179 participants in total (131 participants who underwent gastric bypass and 48 participants who underwent sleeve gastrectomy).
Data are for 173 participants in total (125 participants who underwent gastric bypass and 48 participants who underwent sleeve gastrectomy), with values from 7 patients (6 participants who underwent gastric bypass and 1 participant who underwent sleeve gastrectomy) excluded because of pregnancy.