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Table 2 Prevalence (95 % CI) of BMI category by socio-demographic characteristics

From: Body mass index, waist-hip ratio and risk of chronic medical condition in the elderly population: results from the Well-being of the Singapore Elderly (WiSE) Study

Variable

BMI

Underweight

Overweight

Obese

Odds Ratio

(95 % CI)

P Value

Odds Ratio

(95 % CI)

P Value

Odds Ratio

(95 % CI)

P Value

Age Group (in years)

85+

2.5

(1.2,5.2)

0.02

0.6

(0.4,1.0)

0.065

0.2

(0.1,0.5)

<0.000

75–84

1.8

(0.9,3.4)

0.074

0.9

(0.6,1.2)

0.371

0.4

(0.3,0.7)

<0.000

60–74

1 (reference)

  

1 (reference)

  

1 (reference)

  

Ethnicity

Malay

1.3

(0.8,2.1)

0.235

1.4

(1.1,1.9)

0.01

3.2

(2.3,4.3)

<0.000

Indian

0.8

(0.5,1.4)

0.496

1.9

(0.9,1.7)

0.058

3.3

(2.4,4.4)

<0.000

Others

1.2

(0.1,11.6)

0.871

1.7

(0.6,4.7)

0.348

5.9

(2.0,17.0)

0.001

Chinese

1 (reference)

  

1 (reference)

  

1 (reference)

  

Gender

Women

0.8

(0.4,1.6)

0.482

0.8

(0.6,1.2)

0.361

1.1

(0.7,1.8)

0.544

Men

1 (reference)

  

1 (reference)

  

1 (reference)

  

Marital Status

Never Married

0.94

(0.3,2.7)

0.235

0.4

(0.3,0.8)

0.004

0.7

(0.3,1.3)

0.213

Widowed

1.1

(0.5,2.2)

0.881

0.9

(0.7,1.4)

0.884

0.8

(0.5,1.3)

0.451

Divorced/Separated

0.6

(0.1,2.9)

0.501

0.7

(0.4,1.4)

0.315

0.7

(0.3,1.5)

0.31

Married/Cohabiting

1 (reference)

        

Education

None

2.6

(0.7,9.5)

0.138

0.6

(0.3,1.1)

0.087

1.3

(0.7,2.7)

0.425

Some, but did not complete primary

2.7

(0.8,8.6)

0.126

0.8

(0.5,1.3)

0.341

1.4

(0.7,2.6)

0.308

Completed primary

2.4

(0.7,7.9)

0.17

0.7

(0.4,1.1)

0.16

1

(0.5,1.9)

0.979

Completed secondary

1.8

(0.8,3.9)

0.203

1

(0.6,1.7)

0.971

1.2

(0.6,2.2)

0.585

Completed tertiary

1 (reference)

  

1 (reference)

  

1 (reference)

  

Employment Status

Unemployed

1.1

(0.2,6.9)

0.93

2.6

(0.7,9.8)

0.158

1.6

(0.3,7.9)

0.534

Homemaker

1.8

(0.7,4.6)

0.239

1.4

(0.9,2.2)

0.156

1.7

(1.0,2.9)

0.057

Retired

1.8

(0.8,3.9)

0.15

1.1

(0.8,1.6)

0.447

1.2

(0.8,1.8)

0.406

Paid work (part-time and full-time)

1 (reference)

  

1 (reference)

  

1 (reference)