Table 4. Factors associated with MCS in multivariable general linear model.

Variables	Difference in Estimated Marginal Mean MCS (95% CI)	p values
Monthly household income (VND) (ref: ≥ 6 million)
3–5 million	-3.02 (-4.74, -1.30)	0.001
< 3 million	-4.19 (-6.11, -2.27)	<0.0001
Drinking water treatment (ref: Point of use treated)
Out-side treated	-1.59 (-3.21, 0.02)	0.053
Untreated	-3.26 (-6.11, -0.42)	0.025
Household food insecurity (ref: Food secure)
Food insecure	-2.99 (-4.92, -1.07)	0.002
Food availability score	0.95 (0.41, 1.49)	0.001
HFI*quantity of water used pppd	-5.95 (-9.73, -2.18)	0.002

MCS, mental composite score; CI, confidence interval; VND, Vietnamese dong; Ref, reference; HFI, household food insecurity; pppd, per person per day.

Only factors with significant differences with p<0.05 or 0.01 are reported.

Variables included in the MCS model: population group, monthly household income, HFI, PCS, household diet diversity and food availability scores, drinking water treatment, quantity of water used pppd.