Table 1. Body weight and body composition.
| Row | Variable | Reg, Sham(n = 9) | Reg, Prox (n = 9) | Reg, Dist (n = 8) | HF, Sham (n = 12) | HF, Prox (n = 11) | HF, Dist (n = 13) | Overall *p-value | *Pairwise p (Reg) | *Pairwise p (HF) | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sham/Prox | Sham/Dist | Sham/Prox | Sham/Dist | |||||||||
| 1 | iBW (g) | 678 (648, 722) | 731 (663, 800) | 648 (614, 705) | 878 (844, 931) | 946 (838, 1015) | 955 (857, 1064) | <0.0001 | 0.54 | 0.41 | 0.48 | 0.34 |
| 2 | ∆BW (g) | −58 (−72, −51) | −85 (−91, −59) | −73 (−128, −66) | −91 (−117, −63) | −108 (−162, −79) | −94 (−118, −67) | 0.0644 | ||||
| 3 | ∆BW (%) | −8.3 (−11, −7.0) | −11 (−12, −9.9) | −12 (−18, −10) | −9.7 (−13, −7.1) | −10 (−17, −9.5) | −8.8 (−14, −7.3) | 0.2264 | ||||
| 4 | iFat (g) | 132 (104, 157) | 134 (93, 140) | 109 (87, 123) | 294 (252, 337) | 309 (243, 346) | 289 (216, 346) | <0.0001 | 0.99 | 0.36 | 0.75 | 0.69 |
| 5 | i%BF | 19 (16, 22) | 17 (15, 19) | 17 (14, 19) | 34 (29, 37) | 34 (29, 36) | 31 (25, 36) | <0.0001 | 0.79 | 0.53 | 0.60 | 0.15 |
| 6 | ∆Fat (g) | −17 (−24, −10) | −28 (−33, −22) | −24 (−58, −16) | −48 (−81, −33) | −46 (−91, −39) | −30 (−71, −21) | 0.0086 | 0.25 | 0.14 | 0.60 | 0.47 |
| 7 | ∆Fat (%)† | −13 (−23, −8.6) | −20 (−28, −14) | −27 (−39, −16) | −13 (−26, −12) | −19 (−27, −15) | −14 (−26, −8) | 0.2140 | ||||
| 8 | iLean (g) | 466 (454, 501) | 513 (484, 535) | 467 (428, 498) | 488 (472, 518) | 499 (483, 515) | 537 (450, 575) | 0.1347 | ||||
| 9 | ∆Lean (g) | −25 (−34, −16) | −42 (−47, −23) | −45 (−53, −21) | −23 (−28, −13) | −22 (−37, −7.2) | −20 (−32, −5.1) | 0.1523 | ||||
| 10 | ∆Lean (%)† | −5.3 (−6.5, −3.6) | −7.7 (−9.2, −4.6) | −9.7 (−11, −4.8) | −4.7 (−6.2, −2.7) | −4.7 (−6.7, −1.5) | −3.7 (−6.5, −1.2) | 0.0689 | ||||
| 11 | ∆Intake (kcal) | −71 (−168, 95) | −167 (−172, 80) | 177 (−90, 401) | −167 (−396, 75) | 239 (−9, 719) | −6 (−126, 71) | 0.0406 | 0.86 | 0.27 | 0.01 | 0.24 |
Initial (i) values represent measurements taken immediately prior to operation; delta (∆) values represent the difference between the necropsy and initial measurements.
†Percentages represent the delta value divided by the initial value. BW = body weight; Fat = fat mass; %BF = percent body fat; Lean = lean mass; ∆Intake = cumulative change in caloric intake during postoperative observation period relative to the preoperative period; Reg = rats fed regular rat chow; HF = rats fed high-fat diet; Sham = sham resection; Prox = 50% proximal enterectomy; Dist = 50% distal enterectomy. Each value is given as the median with the 25th and 75th percentiles in parentheses.
*Kruskal-Wallis test (significant results in bold font/high-lighted in yellow); pair-wise comparisons performed if overall p-value was <0.05.