Table 4

Agreement between households and provider in OOPs by number of health expenditure items and spending category

No of health items within each spending category	No of households	Total no of health questions	Mean ratio	95% limits of agreement of mean ratio	Estimated difference in mean ratio between questionnaire versions and CI and p value	Estimated diffference in SD of mean ratio between questionnaire versions and CI and p value
	Outpatient care				p=0.49	p=0.50
2 health items	44	11	1.02	0.05 to 21.2	–	–
12 health items	126	44	1.21	0.05 to 26.7	1.29 (0.74 to 2.23)	1.02 (0.73 to 1.42)
12 health items	47	56	1.56	0.12 to 19.6	1.47 (0.77 to 2.80)	0.84 (0.57 to 1.25)
	Inpatient care				p=0.003	p=0.01
2 health items	91	11	3.88	0.17 to 86.2	–	–
14 health items	99	44	6.61	0.16 to 270.7	1.63 (0.99 to 2.69)	1.35 (1.03 to 1.76)
14 health items	100	56	9.19	0.51 to 161.2	2.34 (1.44 to 3.83)	0.93 (0.71–1.21)
	Medicines				p=0.023	p=0.33
2 health items	302	11	1.26	0.10 to 16.0	–	–
9 health items	381	44	1.35	0.09 to 19.5	1.14 (0.91 to 1.42)	1.04 (0.91 to 1.19)
16 health items	354	56	1.62	0.18 to 15.0	1.36 (1.01 to 1.70)	0.95 (0.83 to 1.08)
	Preventive care				p=0.290	p=0.51
2 health items	86	11	1.21	0.09 to 15.15	–	–
5 health items	67	44	0.89	0.04 to 18.9	0.74 (0.46 to 1.14)	1.19 (0.88 to 1.62)
5 health items	22	56	1.33	0.08 to 22.4	1.07 (0.55 to 2.05)	1.04 (0.68 to 1.60)

Note: The unit of the estimated difference is the mean ratio expressed as a ratio between household and provider for each questionnaire version.
OOP, out-of-pocket.