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Table 3 Re-extracted information on initial mean weight, final weight, and mean weight change

From: Correcting calculation and data errors reveals that the original conclusions were incorrect in “The best drug supplement for obesity treatment: a systematic review and network meta-analysis”

   

Initial Weight (kg)

Final Weight (kg)

Mean Weight Change (kg)

Study

Year

Groups

Mean

SD

Mean

Mean

SE

SD

N a

Apovian [9]

2013

Placebo

99.2

15.9

97.7

-1.5

0.5

8.17

267

  

32 mg/ day naltrexone SR + 360 mg/day bupropion SR (NB32)

100.3

16.6

92.4

-7.9

0.3

6.25

434

Aronne [10]

2010

Placebo

107

22

104.9

-2.1

0.9

6.85

58

  

Pramlintide (120 µg sc)

102

19

98.4

-3.6

0.7

5.33

58

  

*Pramlintide (120 µg sc t.i.d.) + sibutramine (10 mg oral q.a.m.)

101

(NA)

16

(NA)

89.7

(NA)

-11.3

(NA)

1.2

(NA)

9.06

(NA)

57

  

*Pramlintide (120 µg sc t.i.d.) + phentermine (37.5 mg oral q.a.m.)

102

(NA)

18

(NA)

90.7

(NA)

-11.3

(NA)

0.9

(NA)

6.91

(NA)

59

Davies [7]

2015

*Placebo

106.5

21.3

101.3

(104.3)

-5.2

(-2.2)

1.44

(NA)

20.86

(NA)

211

  

*Liraglutide 3.0 mg

105.7

21.9

98.2

(99.3)

-7.5

(-6.4)

1.04

(NA)

21.13

(NA)

412

  

*Liraglutide 1.8 mg

105.8

21

99.8

(100.8)

-6

(-5)

1.47

(NA)

21.05

(NA)

204

Fidler [11]

2011

Placebo

100.8

16.2

97.9

-2.9

0.163

(NA)

6.4

1541

  

Lorcaserin 10 mg BID

100.3

15.7

94.5

-5.8

0.162

(NA)

6.4

1561

  

Lorcaserin 10 mg QD

100.1

16.7

95.4

-4.7

0.23

(NA)

6.4

771

Gadde [12]

2011

Placebo

103.3

18.1

101.9

-1.4

0.36

(NA)

11.2

(NA)

979

  

Phentermine 7.5 mg + topiramate 46.0 mg

102.6

18.2

94.5

-8.1

0.51

(NA)

11.3

(NA)

488

  

*Phentermine 15.0 mg + topiramate 92.0 mg

103.3

(103)

17.6

93.1

(92.8)

-10.2

0.46

(NA)

14.4

(NA)

981

Greenway [8]

2010

Placebo

99.5

14.3

97.6

-1.9

0.5

8.5

(NA)

290

  

Naltrexone16.0 mg + bupropion

99.5

14.8

93

-6.5

0.5

8.4

(NA)

284

  

Naltrexone32.0 mg + bupropion

99.7

15.9

91.7

-8

0.5

8.6

(NA)

296

Le Roux [13]

2017

Placebo

107.9

21.8

105.9

-2

0.27

(NA)

7.3

738

  

Liraglutide 3.0 mg

107.5

21.6

101

-6.5

0.21

(NA)

8.1

1472

Lu [14]

2018

Placebo

91.5

14.5

87.9

-3.6

0.65

(NA)

5.87

(NA)

82

  

Lorcaserin 10.0 mg

92.6

13.3

86.8

-5.8

0.56

(NA)

5.14

(NA)

84

O’Neil [15]

2012

*Placebo

101.6

18.1

99.7

(101.7)

-1.9

(NA)

0.5

(NA)

6.26

(NA)

157

  

*Lorcaserin 10 mg BID

104.7

17.9

99.1

(104.7)

-5.6

(NA)

0.5

(NA)

6.50

(NA)

169

  

*Lorcaserin 10 mg QD

105.4

(105.9)

19

99.5

(105.4)

-5.9

(NA)

0.7

(NA)

6.06

(NA)

75

Pi-Sunyer [16]

2015

Placebo

106.2

21.7

103.4

-2.8

0.19

(NA)

6.5

1225

  

Liraglutide 3.0 mg QD

106.2

21.2

97.8

-8.4

0.15

(NA)

7.3

2437

Smith [17]

2010

Placebo

99.7

15.93

(0.4)

97.5

-2.2

0.1

3.87

(NA)

1499

  

Lorcaserin 10.0 mg

100.4

15.97

(0.4)

94.6

-5.8

0.2

7.84

(NA)

1538

  1. Original results reported in Salari et al.’s paper1 are shown in parentheses. Discrepant results are shown in red. Abbreviations: BID, twice a day; q.a.m., every morning; QD, every day; sc, subcutaneous; t.i.d., three times a day
  2. a: The number of participants is from completers
  3. *: The treatment groups from which the data were re-extracted and/or calculated differed from those reported by Salari et al