Table 3.

Predictors of underweight among Ugandan women aged 20–49 years

Characteristics	Crude model (n = 4640) OR (95%CI)	P-value	Model 1a (n = 4640) OR 1 (95%CI)	Sensitivity Model 2b (n = 3327) OR 2 (95%CI)
Age		0.131
40 to 49	1		1	1
30 to 39	0.76 (0.54–1.06)		0.83 (0.59–1.17)	0.78 (0.55–1.10)
20 to 29	0.74 (0.55–1.00)		0.92 (0.66–1.28)	0.76 (0.54–1.07)
Education Level		< 0.001
Higher	1		1	1
Secondary	1.50 (0.66–3.43)		1.43 (0.63–3.23)	1.29 (0.56–2.96)
Primary	2.56 (1.17–5.57)		1.58 (0.75–3.30)	1.42 (0.66–3.07)
No Education	4.00 (1.77–9.07)		2.16 (0.97–4.81)	1.96 (0.85–4.50)
Marital Status		0.409
Not married	1		1	1
Married	0.89 (0.68–1.17)		0.81 (0.60–1.11)	0.89 (0.65–1.22)
Working Status		0.334
Working	1		1	1
Not working	0.84 (0.59–1.20)		1.09 (0.75–1.58)	1.06 (0.73–1.54)
Region		< 0.001
Northern	1		1	1
Western	0.25 (0.18–0.35)		0.30 (0.20–0.44) *	0.35 (0.24–0.51)
Eastern	0.34 (0.23–0.50)		0.42 (0.28–0.63) *	0.44 (0.29–0.67)
Central	0.25 (0.16–0.39)		0.42 (0.25–0.72) *	0.51 (0.30–0.89)
Household Size		0.04
Less than 6	1		1	1
Six and above	1.29 (1.01–1.65)		1.13 (0.88–1.46)	1.13 (0.87–1.45)
Wealth Index		< 0.001
Richest	1		1	1
Richer	1.41 (0.80–2.49)		1.56 (0.86–2.83)	1.20 (0.63–2.27)
Middle	2.15 (1.24–3.71)		2.49 (1.25–4.99) *	1.75 (0.85–3.62)
Poorer	3.24 (1.92–5.46)		3.07 (1.57–5.97) *	2.00 (0.99–4.01)
Poorest	5.28 (3.25–8.57)		3.60 (1.85–7.00) *	2.24 (1.12–4.48)
Residence		0.05
Urban	1		1	1
Rural	1.43 (0.99–2.04)		0.63 (0.41–0.96) *	0.60 (0.39–0.94) *
Male	1		1	1
Female	1.18 (0.91–1.54)		1.16 (0.85–1.60)	1.15 (0.83–1.59)

* = Significant at p-value < 0.05, Final model - Adjusted for residence, region, sex of household, household size, occupation, marital status, age, education level and wealth index. Sensitivity model – Included only women with low and normal BMI and excluded women with BMI above 25.0. AOR Adjusted odds ratio. COR Crude Odds Ratio