Table 6 Comparison of nutrition indexes among three groups

 Preoperative

66.33 ± 3.116

66.10 ± 3.618

66.36 ± 3.824

0.844

 Postoperative 3 months

59.54 ± 4.393

58.47 ± 4.385

57.36 ± 5.683

0.008

 Postoperative 6 months

62.57 ± 3.407

60.80 ± 3.851

56.59 ± 4.936

< 0.001

 Postoperative 12 months

63.17 ± 3.162

62.27 ± 3.425

57.84 ± 4.117

< 0.001

 Postoperative 18 months

64.85 ± 3.020

64.08 ± 2.569

58.25 ± 4.246

< 0.001

 Preoperative

126.64 ± 5.562

128.06 ± 4.671

127.00 ± 5.449

0.137

 Postoperative 3 months

120.24 ± 4.393

119.29 ± 4.807

114.48 ± 4.767

< 0.001

 Postoperative 6 months

118.27 ± 4.123

117.40 ± 4.138

111.11 ± 5.099

< 0.001

 Postoperative 12 months

120.98 ± 3.287

120.59 ± 3.382

115.72 ± 3.201

< 0.001

 Postoperative 18 months

121.08 ± 3.289

120.56 ± 2.404

118.83 ± 3.207

< 0.001

 Preoperative

72.12 ± 3.967

72.60 ± 3.861

72.69 ± 3.762

0.543

 Postoperative 3 months

71.04 ± 3.548

71.40 ± 2.684

69.39 ± 2.494

< 0.001

 Postoperative 6 months

68.36 ± 3.253

68.46 ± 3.183

65.34 ± 2.177

< 0.001

 Postoperative 12 months

71.73 ± 2.595

70.73 ± 3.075

68.74 ± 1.747

< 0.001

 Postoperative 18 months

71.45 ± 1.916

71.54 ± 1.984

70.09 ± 1.660

< 0.001

 Preoperative

46.07 ± 2.412

45.50 ± 2.807

46.21 ± 3.354

0.183

 Postoperative 3 months

44.09 ± 1.777

42.48 ± 2.244

42.63 ± 2.068

< 0.001

 Postoperative 6 months

44.38 ± 1.897

43.81 ± 1.966

41.00 ± 1.922

< 0.001

 Postoperative 12 months

44.76 ± 1.878

44.60 ± 2.157

42.84 ± 2.315

< 0.001

 Postoperative 18 months

46.27 ± 2.952

44.00 ± 2.240

43.13 ± 2.207

< 0.001

 Preoperative

177.16 ± 5.807

176.05 ± 3.889

176.04 ± 5.443

0.248

 Postoperative 3 months

170.26 ± 3.862

168.08 ± 3.741

157.02 ± 4.679

< 0.001

 Postoperative 6 months

164.98 ± 3.956

154.13 ± 6.981

139.19 ± 4.690

< 0.001

 Postoperative 12 months

167.87 ± 2.987

144.77 ± 6.588

114.86 ± 9.765

< 0.001

 Postoperative 18 months

164.56 ± 3.840

147.16 ± 6.624

104.36 ± 9.494

< 0.001