Table 1 Baseline characteristics of participants.

From: Predictors of BMI reduction with phentermine/topiramate in adolescents with obesity

 

Placebo

Mid-dose PHEN/TPM

Top-dose PHEN/TPM

N

56

54

112

Age, years (Mean ± SD)

14.0 (1.4)

14.1 (1.3)

14.0 (1.3)

Age category, N (%)a

   

 12–14 years

34 (60.7)

33 (61.1)

68 (60.7)

 15–16 years

22 (39.3)

21 (38.9)

44 (39.3)

Sex, N (%)

   

 Female

30 (53.6)

28 (51.9)

63 (56.2)

 Male

26 (46.4)

26 (48.1)

49 (43.8)

Race, N (%)

   

 American Indian or Alaska Native

0 (0.0)

0 (0.0)

1 (0.9)

 Asian

0 (0.0)

0 (0.0)

1 (0.9)

 Black or African American

10 (17.9)

14 (25.9)

36 (32.1)

 Otherb

4 (7.1)

4 (7.4)

4 (3.6)

 White

42 (75.0)

36 (66.7)

70 (62.5)

Ethnicity, N (%)

   

 Hispanic or Latino

13 (23.6)

25 (47.2)

33 (29.5)

 Non-Hispanic or Non-Latino

42 (76.4)

28 (52.8)

79 (70.5)

 Missing

1

1

0

Race/Ethnicity, N (%)

   

 Hispanic and/or not White

27 (48.2)

38 (71.7)

72 (64.3)

 Non-Hispanic White

29 (51.8)

15 (28.3)

40 (35.7)

 Missing

0

1

0

Baseline BMI, kg/m2 (Mean ± SD)

36.4 (6.4)

36.9 (6.7)

39.0 (7.5)

% of the 95th BMI percentile (Mean ± SD)

136.7 (23.0)

138.7 (25.2)

147.0 (28.7)

Tanner stage, N (%)

   

 Stages 2 and 3

23 (41.1)

16 (29.6)

37 (33.0)

 Stages 4 and 5

33 (58.9)

38 (70.4)

75 (67.0)

Glycemic status, N (%)

   

 Normoglycemic

40 (75.5)

37 (69.8)

82 (77.4)

 Prediabetes

13 (24.5)

16 (30.2)

24 (22.6)

 Missing

3

1

6

Depression status, N (%)

   

 None

50 (89.3)

45 (83.3)

83 (76.1)

 Mild

6 (10.7)

9 (16.7)

26 (23.9)

 Missing

0

0

3

CANTAB-Spatial Span Score (Mean ± SD)

6.6 (1.4)

6.8 (1.5)

6.8 (1.4)

CANTAB-Spatial Span Score, N (%)

 Low (<7)

27 (48.2)

17 (31.5)

52 (46.4)

 High (≥7)

29 (51.8)

37 (68.5)

60 (53.6)

IWQOL-Kids total score (Mean ± SD) [Missing]

87.6 (10.3)

85.5 (12.9)

82.6 (14.3) [2]

IWQOL-Kids total score, N (%)

 Low (<85)

18 (32.1)

25 (46.3)

48 (43.6)

 High (≥85)

38 (67.9)

29 (53.7)

62 (56.4)

 Missing

0

0

2

  1. BMI body mass index, CANTAB Cambridge Neuropsychological Test Automated Battery, IWQOL The Impact of Weight on Quality of Life.
  2. aAge category was the randomization stratification variable and adjusted for in models.
  3. bOther races included: Mexican, Middle Eastern, and Multiple.