Table 2 BMI, weight, waist circumference, Fat and Percent Fat, serum glucose and HbA1c levels evolution during the follow-up across the two OSA groups.

From: The influence of obstructive sleep apnea syndrome on anthropometric parameters at 12 months after laparoscopic sleeve gastrectomy

 

Baseline

6 Months

12 Months

P*

P

BMI, kg/m2

No OSA (N = 25)

44.6 ± 5.5

32.79 (30.02–35.56)

29.19 (25.47–32.9)

 < 0.001

0.58

OSA (N = 48)

45.9 ± 6.7

35.13 (32.56–37.7)

33.15 (29.85–36.45)

P

0.24

0.128

Weight, kg

No OSA (N = 25)

122.6 ± 18.7

89.38 (80.99–97.75)

79.4 (69.42–89.38)

 < 0.001

0.71

OSA (N = 48)

128.9 ± 19.6

99.23 (91.81–106.66)

93.7 (83.24–104.16)

P

 

0.092

0.076

Waist circumference, cm

No OSA (N = 25)

122.0 ± 11.9

97.87 (90.63–105.11)

91.89 (82.96–100.82)

 < 0.001

0.51

OSA (N = 48)

129.9 ± 12.8

107.78 (102.03–113.53)

105.47 (97.22–113.72)

P

0.034

0.035

Fat, kg

No OSA (N = 25)

54.9 (50.6–59.1)

33.1 (29.9–36.3)

27.5 (23.6–31.3)

 < 0.001

0.45

OSA (N = 48)

58.3 (55.3–61.3)

34.9 (32.3–37.6)

31.7 (28.7–34.7)

P

0.38

0.09

Percent Fat, %

No OSA (N = 25)

44.9 (42.8–47.2)

35.4 (33.8–36.9)

30.8 (28.8–32.7)

 < 0.001

0.02

OSA (N = 48)

45.3 (43.7–46.9)

36.9 (35.6–38.3)

34.8 (33.2–36.3)

P

0.16

0.002

Serum glucose, mg/dL

No OSA (N = 25)

96.0 (85.0–102.0)

86.53 (82.62–90.44)

88.6 (82.56–94.64)

 < 0.001

0.19

OSA (N = 48)

102.5 (93.5–122.5)

90.5 (82.02–98.97)

86.85 (82.15–91.55)

P

0.5

0.64

HbA1c, %

No OSA (N = 25)

5.3 (4.9–5.5)

5.2 (5–5.3)

5 (4.7–5.3)

 < 0.001

0.4

OSA (N = 48)

5.7 (5.3–6.0)

5.4 (5.1–5.7)

5.2 (5–5.3)

P

0.335

0.172

  1. Data are presented as mean (95%CI) at baseline, and least-squares mean (95%CI) at 6 and 12 months. Analysis was conducted using a mixed model for repeated measures, adjusting for baseline values. Adjusting also for diabetes didn’t change the significance of the results.
  2. *P value for time effect – trend over time in all arms.
  3. P value for treatment x time interaction – evaluates if changes in one group are different from the changes in the other group.
  4. P value for comparison between groups at each moment; BMI—body mass index; HbA1c—glycated hemoglobin.