Table 1

Baseline characteristics of study participants stratified by trial arm

Control

Diet

Exercise

Diet+Exercise

N = 87

N = 118

N = 117

N = 117


Demographics

Age (years), mean (SD)

57.4 (4.4)

58.1 (5.9)

58.1 (5.0)

58.0 (4.5)

Ethnicity, N (%)

Non-Hispanic white

74 (85.1)

101 (85.6)

98 (83.8)

100 (85.5)

Education, N (%)

College degree

59 (67.8)

76 (64.4)

70 (59.8)

82 (70.1)

Marital status a, N (%)

Married or with partner

59 (67.8)

79 (67.0)

71 (60.7)

70 (60.3)

Employment b, N (%)

Employed

72 (97.3)

92 (87.6)

87 (90.6)

94 (91.2)

Unemployed

2 (2.7)

13 (12.4)

9 (9.4)

9 (8.7)


Anthropometrics, mean (SD)

BMI(kg/m2),

30.7 (3.9)

31.0 (3.9)

30.7 (3.7)

31.0 (4.3)

Body fat (%)

47.8 (4.5)

47.6 (4.4)

47.9 (4.1)

48.0 (4.6)

Waist circumference (cm)

94.3 (11.3)

94.6 (10.2)

95.1 (10.1)

93.7 (9.9)


Antidepressants/anxiolytics use, N (%)

Yes

29 (33.3)

35 (29.7)

41 (35.0)

44 (37.6)


Lifestyle factors, mean (SD)

Aerobic fitness (ml/kg/min),

23.1 (4.1)

22.6 (3.8)

22.5 (4.1)

23.5 (4.1)

Physical activity (min/week)

23.8 (41.2)

33.6 (45.5)

37.7 (43.7)

33.6 (44.7)

Calorie intake (kcal/day) c

1988 (669)

1884 (661)

1986 (589)

1890 (638)


Psychosocial factors, mean (SD)

Depression

48.0 (9.0)

49.4 (9.8)

48.3 (9.4)

48.3 (8.7)

Anxiety

45.3 (7.0)

44.9 (6.8)

43.5 (6.1)

44.2 (6.8)

Perceived stress

3.71 (2.64)

3.47 (2.66)

3.43 (2.75)

3.04 (2.35)

Social support

81.0 (20.1)

80.0 (19.3)

81.4 (15.9)

81.7 (19.4)


Health-related quality of life, mean (SD)

Physical functioning

86.8 (11.7)

86.2 (11.0)

87.8 (11.1)

86.7 (12.1)

Role-physical

81.6 (30.1)

83.5 (26.8)

82.8 (29.3)

83.5 (25.9)

Bodily pain

75.8 (17.2)

76.9 (15.1)

77.8 (16.5)

78.8 (16.8)

General health

57.1 (8.0)

55.9 (7.7)

56.9 (6.7)

57.6 (6.4)

Vitality

57.4 (16.0)

56.6 (17.7)

60.3 (16.3)

58.7 (18.6)

Social functioning

87.8 (18.0)

88.1 (17.1)

91.4 (13.1)

90.8 (13.4)

Role-emotional

84.1 (26.9)

82.2 (28.5)

87.5 (25.5)

88.6 (20.1)

Mental health

77.1 (13.5)

76.8 (13.1)

81.1 (10.0)

79.1 (12.3)


a marital status (n = 438); b employment (n = 378); c calorie intake (n = 427)

Imayama et al. International Journal of Behavioral Nutrition and Physical Activity 2011 8:118   doi:10.1186/1479-5868-8-118

Open Data