Table 4. Proportion of respondents reporting each socio-economic indicator in each round and the extent of agreement between each round for respondents using IAQ in one round and self-administered in the other.

	(n = 65)		p-value	kappa	(n = 66)		p-value	kappa
Indicator	IAQ R1 a	SA R2 b			SA R1 c	IAQ R2 d
Ability to afford essential items:
Cannot afford:
to cook with oil at each meal	41.5	55.4	0.05	0.36	59.1	45.4	0.04	0.55
to eat meat or fish at least 4x/wk	58.5	73.8	0.01	0.53	75.8	74.2	0.80	0.31
to drink tea once/day	40.0	50.8	0.16	0.23	47.0	13.6	<0.001	0.18
soap to wash clothes	12.3	16.9	0.51	0.44	19.7	4.6	0.02	−0.08
to pay clinic fees if sick	35.4	46.2	0.09	0.59	47.0	36.7	0.09	0.48
All in household do not own at least 1 pair of shoes	23.1	44.7	<0.001	0.41	37.9	22.7	0.01	0.51
Been absent from school - no money for fees	49.2	53.8	0.49	0.42	50.0	39.4	0.12	0.54
Food security:
Adult skipped a meal in last week	12.3	24.6	0.02	0.50	27.4	12.9	0.04	0.27
Gone a day without food in the last week	10.8	21.5	0.06	0.39	22.2	6.4	0.01	0.26
Sometimes I go to bed hungry	18.5	27.7	0.18	0.40	21.2	12.1	0.15	0.36
Cannot afford to eat more than one meal/day	21.5	40.0	0.004	0.44	30.3	15.2	0.03	0.25

^aInterview-administered questionnaire completed in round 1.

^bSelf-administered questionnaire mode (i.e. SAQ, AudioSAQ or ACASI) completed in round 2.

^cSelf-administered questionnaire mode completed in round 1.

^dInterview-administered questionnaire mode completed in round 2.