Table 4.

Age-stratified associations between household-level characteristics and underweight by multilevel logistic regression among girls and women (n 6140), former internally displaced persons living in a rural post-conflict area of northern Uganda, 2011–2013

	Age 0–4 years (n 1314)		Age 5–12 years (n 1616)		Age 13–19 years (n 782)		Age ≥20 years (n 2428)
	OR	95 % CI	OR	95 % CI	OR	95 % CI	OR	95 % CI
Headship
Male	1·00	Ref.	1·00	Ref.	1·00	Ref.	1·00	Ref.
Female	1·51	0·97, 2·34*	1·30	0·76, 2·22	0·46	0·22, 0·97†	1·20	0·89, 1·61
Polygamy
No	1·00	Ref.	1·00	Ref.	1·00	Ref.	1·00	Ref.
Yes	0·86	0·53, 1·40	0·69	0·37, 1·30	0·44	0·18, 1·08*	0·90	0·61, 1·33
Household size (members)
7 members	1·00	Ref.	1·00	Ref.	1·00	Ref.	1·00	Ref.
1 member	–	–	–	–	–	–	1·36	0·71, 2·61
2–4 members	0·57	0·29, 1·12	0·86	0·37, 1·97	0·60	0·21, 1·73	1·02	0·64, 1·63
5–6 members	0·90	0·51, 1·58	0·63	0·32, 1·24	0·76	0·30, 1·93	0·91	0·58, 1·41
8–9 members	0·89	0·50, 1·56	0·79	0·41, 1·51	0·49	0·19, 1·21	0·80	0·49, 1·30
10–18 members	0·78	0·42, 1·44	0·69	0·33, 1·44	0·84	0·36, 1·91	1·02	0·61, 1·72
Child-to-adult ratio
1 (lowest, ratio=0·1)	1·00	Ref.	1·00	Ref.	1·00	Ref.	1·00	Ref.
2 (second lowest, ratio=1·1–1·5)	0·65	0·38, 1·10	1·34	0·68, 2·65	1·33	0·62, 2·85	1·21	0·82, 1·78
3 (second highest, ratio=1·6–2)	0·82	0·50, 1·36	0·85	0·44, 1·66	0·89	0·38, 2·07	1·19	0·83, 1·73
4 (highest, ratio=2·25–7)	0·50	0·30, 0·85*	0·92	0·50, 1·70	1·18	0·52, 2·69	0·79	0·53, 1·18
Living with ≥1 stunted person
No	1·00	Ref.	1·00	Ref.	1·00	Ref.	1·00	Ref.
Yes	2·01	1·45, 2·80†	1·49	0·97, 2·28*	1·26	0·72, 2·19	1·07	0·83, 1·40
Living with ≥1 overweight person
No	1·00	Ref.	1·00	Ref.	1·00	Ref.	1·00	Ref.
Yes	0·58	0·28, 1·20	0·27	0·10, 0·77†	0·53	0·18, 1·56	0·65	0·28, 1·55
Deprived area
No	1·00	Ref.	1·00	Ref.	1·00	Ref.	1·00	Ref.
Yes	1·66	0·97, 2·82*	1·14	0·54, 2·42	1·55	0·66, 3·66	1·38	0·87, 2·22

n, number of observations (individuals included in each model); SES, socio-economic status; Ref., reference category.

OR and corresponding 95 % CI are presented by four-level multilevel logistic regression models, where level 1 represents observations, level 2 represents individuals, level 3 represents households and level 4 represents villages.

All OR adjusted for age, sex, season when the anthropometric measurements were taken, sex of household head, polygamy, household size, child-to-adult ratio, living with ≥1 stunted person, living with ≥1 overweight person and deprived area.

Entries in bold mark statistically significant associations. Significance level: *P<0·10 and †P<0·05 by testparm (Stata version 14).