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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)