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Table 2 Mean body mass index, percent body fat and waist circumference of women (n = 365) by selected socio-demographic characteristics

From: Predictors of overweight and obesity in adult women in Nairobi Province, Kenya

 

Mean BMI (SD)

Mean% body fat (SD)

Mean WC (SD)

Mean

27.9 (5.3)

39.5 (7.6)

86.9 (13.5)

Age (years)

P <0.001c

P <0.001 c

P <0.001 c

25-29

25.6 (5.0)

35.7 (6.6)

80.7 (11.2

30-34

28.1 (4.4)

39.3 (6.3)

86.0 (11.0)

35-39

28.7 (4.6)

40.8 (6.7)

87.7 (8.7)

40-44

28.9 (5.5)

41.7 (7.5)

90.1 (9.1)

45-49

28.8 (6.5)

41.2 (7.8)

90.9 (18.4)

50-54

31.8 (4.7)

46.6 (7.8)

99.5 (14.6)

Socio-economic group

P = 0.005b

P = 0.021a

P = 0.083

Lower

26.4 (5.2)

37.6 (6.8)

86.1 (12.2)

Upper-lower

27.6 (4.8)

39.2(7.9)

85.9 (12.2)

Middle

27.7 (4.9)

39.3(7.8)

84.5 (11.8)

Lower-upper

29.5 (%.3)

41.1(7.1)

90.3 (14.7)

Upper

29.1 (6.3)

42.1 (8.3)

88.8 (17.7)

Marital status

P = 0.01a

P = 0.06

P <0.001 c

Single

26.1 (4.8)

37.8 (8.0)

82.4 (11.9)

Married

28.3 (5.4)

39.9 (7.1)

87.6 (13.2)

Divorced/separated

30.1 (4.8)

42.5 (8.9)

93.0 (16.2)

Widowed

29.5 (4.7)

41.1 (8.5)

93.0 (14.3)

Parity

P <0.001 c

P <0.001 c

P <0.001 c

0-1 child

26.4 (5.0)

37.6 (7.3)

82.5 (12.8)

2-3children

28.1 (4.6)

39.8 (6.6)

86.5 (11.5)

> = 4 children

30.0 (5.8)

42.1 (8.8)

94.3 (14.2)

Education level

P = 0.744

P = 0.764

P = 0.123

None

27.7 (5.3)

40.1 (8.9)

89.1 (15.2)

Primary

28.4 (5.4)

39.9 (7.3)

89.0 (13.1)

Secondary

27.6 (6.4)

38.7 (8.8)

85.8(14.9)

>Secondary

27.8 (4.7)

39.5 (6.9)

85.3 (12.4)

Occupation

P = 0.366

P = 0.471

P = 0.314

Casual worker

26.9 (6.3)

37.4 (7.9)

86.6 (15.7)

Self employed

28.7 (5.3)

40.3 (7.5)

89.2 (13.5)

Formal sector

27.7 (4.8)

39.4 (6.9)

85.5 (12.3)

Housewife

27.6 (5.5)

39.7 (8.4)

86.1 (13.7)

Other

26.9(6.0)

38.0 (10.1)

86.0 (17.3)

Number rooms

P <0.001 c

P <.0.001 c

P <0.001 c

1-2

26.8 (5.4)

37.6 (7.0)

84.9 (12.4)

3-4

27.8 (4.6)

40.0 (7.0)

85.4 (11.5)

5-6

30.3 (5.4)

42.7 (7.6)

92.6 (15.4)

> = 7

28.9 (5.2)

40.9 (8.5)

90.7 (16.2)

Expenditure (Ksh)

P <0.001 c

P <0.001 c

P = 0.014a

<10 000

26.2 (5.1)

37.2 (7.7)

83.8 (12.7)

10 001–20 000

28.1 (5.3)

39.8 (7.2)

86.8 (12.5)

20 001–30 000

28.9 (4.8)

41.4 (7.5)

88.8 (12.4)

30 001–40 000

29.4 (5.6)

40.4 (8.1)

91.7 (16.7)

> = 40 000

29.7 (4.9)

42.3 (6.7)

89.4 (14.7)

  1. BMI = body mass index; WC = waist circumference; SD = standard deviation; Ksh = Kenyan shillings.
  2. a Significant differences at p <0.05; b Significant differences at p <0.01; c Significant differences at p <0.001.