Table 5. Proportion of respondents reporting each socio-economic indicator in each round and the extent of agreement between each round for respondents using the same mode of questionnaire delivery in Rounds 1 and 2.

	(n = 30)		p-value	kappa	(n = 234)		p-value	kappa
Indicator	IAQ R1 a	IAQ R2 b			SA R1 c	SA R2 d
Ability to afford essential items:
Cannot afford:
to cook with oil at each meal	43.3	50.0	0.62	0.73	59.4	57.7	0.60	0.49
to eat meat or fish at least 4x/wk	70.0	66.7	>0.99	0.46	76.9	75.6	0.64	0.52
to drink tea once/day	50.0	36.7	0.22	0.60	41.9	49.6	0.05	0.30
soap to wash clothes	23.3	16.7	0.62	0.59	27.4	26.1	0.68	0.40
to pay clinic fees if sick	23.3	43.3	0.07	0.42	46.2	43.2	0.28	0.63
All in household do not own at least 1 pair of shoes	26.7	30.0	>0.99	0.75	42.7	44.0	0.65	0.63
Been absent from school - no money for fees	66.7	53.3	0.22	0.59	50.0	47.9	0.57	0.34
Food security:
Adult skipped a meal in last week	13.3	13.3	>0.99	1.00	24.9	22.6	0.41	0.54
Gone a day without food in the last week	13.3	16.7	0.50	0.63	21.1	22.4	0.63	0.48
Sometimes I go to bed hungry	23.3	26.7	>0.99	0.73	21.8	23.1	0.63	0.52
Cannot afford to eat more than one meal/day	23.3	16.7	0.69	0.38	28.6	35.5	0.04	0.39

^aInterview-administered questionnaire completed in round 1.

^bInterview-administered questionnaire mode completed in round 2.

^cSelf-administered questionnaire mode (i.e. SAQ, AudioSAQ or ACASI) completed in round 1.

^dSelf-administered questionnaire mode completed in round 2.