Table 3.

Results from multivariable linear regression models testing HFIAS score in relation to HWISE score separated into the item on food (sometimes/often v. never/rarely having to change what was eaten due to water problems) and the remaining eleven items (n 136 households)

	β	95 % CI	P	Adj R2	β	95 % CI	P	Adj R2	β	95 % CI	P	Adj R2
Sometimes/often changing what was eaten due to water problems (reference: never/rarely changing what was eaten)	2·14	0·55, 3·74	0·017		1·84	0·40, 3·28	0·021		1·78	0·41, 3·14	0·019
11-item HWISE score*	0·44	0·19, 0·69	0·0049		0·44	0·23, 0·66	0·0021		0·42	0·18, 0·67	0·0055
PCA-derived SES score †					−0·80	−1·58, –0·03	0·044		−0·76	−1·56, 0·04	0·059
Age of female household head (years)									0·039	−0·027, 0·10	0·20
Number of children in household									0·035	−0·39, 0·46	0·85
Times moved in the previous years									0·047	−0·21, 0·30	0·66
h/d spent collecting water									0·032	−0·33, 0·39	0·83
				0·469				0·496				0·488

HFIAS, Household Food Insecurity and Access Scale; HWISE, Household Water Insecurity Experience; PCA, principal component analysis; SES, socio-economic status.

Results from multivariable linear regression models with SE clustered on community and adjusting for community fixed effects (community coefficients not shown). The baseline model adjusts only for the community. Model 2 adds the PCA-derived SES score. Model 3 adds the covariates for age of female household head, number of children in household, number of times moved in the previous year and h/d spent collecting water.

^*Eleven-item HWISE score is the HWISE score with the scores for the food item subtracted from it (range 0–33).

^†SES score was derived from the first component of a principal component analysis (PCA) conducted with ln(household monthly income+1), ln(livestock wealth+1) and average perceived social status score of household heads (ranging from 1 to 10).