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Table 2 Post-operative weight data for all patients and patients grouped according to diabetes status

From: Phosphatidylcholine and its relation to apolipoproteins A-1 and B changes after Roux-en-Y gastric bypass: a cohort study

  All NDM DMH-DMH DMH-NDM ANOVA p-value
N Mean (95% CI) N Mean (95% CI) N Mean (95% CI) N Mean (95% CI)
3 months after RYGB
 Weight (kg) 168 102.6 (99.7–105.4) 116 102.9 (99.4–106.4) 14 98.4 (88.3–108.6) 26 103.7 (95.9–111.5) 0.671
 BMI (kg/m2) 168 34.7 (34.0–35.5) 116 35.2 (34.3–36.2) 14 32.4 (30.5–34.2) 26 34.3 (32.1–36.4) 0.112
 Weight loss (kg) 168 22.3 (21.2–23.4) 116 22.6 (21.3–23.9) 14 23.4 (19.3–27.5) 26 21.8 (18.8–24.9) 0.797
 Weight loss (%) 168 17.8 (17.1–18.5) 116 17.9 (17.1–18.7) 14 19.1 (16.7–21.4) 26 17.5 (15.4–19.5) 0.556
6 months after RYGB
 Weight (kg) 152 94.5 (91.7–97.4) 104 95.0 (91.5–98.6) 15 92.1 (82.4–101.9) 23 93.0 (85.0–100.9) 0.782
 BMI (kg/m2) 152 32.1 (31.3–32.8) 104 32.6 (31.6–33.5) 15 30.4 (28.5–32.3) 23 31.1 (28.8–33.4) 0.155
 Weight loss (kg) 152 30.5 (28.9–32.0) 104 31.2 (29.4–33.0) 15 28.2 (24.1–32.3) 23 29.7 (25.2–34.1) 0.442
 Weight loss (%) 152 24.3 (23.3–25.2) 104 24.7 (23.6–25.7) 15 23.4 (21.0–25.8) 23 24.2 (21.1–27.3) 0.724
12 months after RYGB
 Weight (kg) 115 86.8 (83.7–90.0) 82 85.5 (81.8–89.2) 14 87.6 (76.6–98.7) 14 91.7 (81.9–101.4) 0.448
 BMI (kg/m2) 115 29.8 (28.9–30.6) 82 29.6 (28.6–30.7) 14 29.0 (26.8–31.3) 14 30.6 (27.8 (33.5) 0.664
 Weight loss (kg) 115 35.5 (33.2–37.8) 82 36.7 (34.1–39.3) 14 31.7 (26.9–36.6) 14 32.8 (25.0–40.7) 0.231
 Weight loss (%) 115 29.0 (27.4–30.5) 82 30.0 (28.2–31.7) 14 26.7 (23.4–30.0) 14 26.3 (20.7–31.8) 0.139
24 months after RYGB       Mean (min - max)    
 Weight (kg) 38 87.2 (81.6–92.8) 26 82.6 (77.0–88.3) 2 69.6 (60.7–78.4)* 7 99.9 (83.2–116.6) 0.013
 BMI (kg/m2) 38 29.7 (28.3–31.2) 26 28.8 (27.1–30.5) 2 26.8 (25.9–27.7) 7 32.6 (28.2–36.9) 0.094
 Weight loss (kg) 38 35.9 (31.1–40.7) 26 38.4 (32.4–44.4) 2 36.4 (24.0–48.6) 7 30.1 (18.2–42.0) 0.421
 Weight loss (%) 38 29.0 (25.7–32.3) 26 31.3 (27.5–35.0) 2 33.3 (28.3–38.3) 7 23.5 (13.8–33.1) 0.146
  1. Data are reported as mean (95% CI), except for 24 months postoperative in the DMH-DMH group, where the numbers in parenthesis resembles minimum and maximum values (N = 2). BMI Body mass index, CI Confidence interval, NDM Patients without diabetes mellitus (DM), DMH-NDM Patients with DM in remission after Roux-en-y gastric bypass surgery (RYGB), DMH-DMH Patients with DM not in remission after RYGB. All patients also include 15 patients who belong to other subgroups than the three showed in table; p-value from One-way ANOVA compares the three patient-subgroup means; * indicates significant difference (p < 0,05) when compared to the NDM group. No significant differences were found between the two diabetes subgroups