Table 2. Interviews carried out, households visited, and the “non-response” rate (NRR) of households according to the primary sampling unit (PSU) in Teresina and Picos. Piauí, ISAD-PI, 2019.

	Teresina					Picos
	Interviews conducted	Drawn households	172 interviewed households.	% NRR Absence	% Total NRR	Interviews conducted	Drawn households	172 interviewed households.	% NRR (Refusal)	% NRR Absence	% Total NRR
	48	49	15	11.5	42.3	37	43	18	9.3	48.8	58.1
	42	12	19	9.4	40.6	35	33	17	9.1	39.4	48.5
	9	24	5	25.0	68.8	23	27	13	14.8	37.0	51.9
	17	13	7	5.9	35.3	27	28	14	7.1	42.9	50.0
	33	26	15	40.0	40.0	35	32	18	15.6	28.1	43.8
	39	33	15	26.9	42.3	54	38	22	10.5	31.6	42.1
	78	36	30	12.2	38.8	32	26	14	23.1	23.1	46.2
	33	51	12	0.0	0.0	72	37	33	5.4	5.4	10.8
	25	17	11	16.7	54.2	48	25	20	8.3	8.3	16.7
	30	20	13	0.0	0.0	33	26	17	7.7	26.9	34.6
	47	26	15	7.7	42.3	9	12	6	8.3	41.7	50.0
	40	29	18	15.2	45.5	40	30	17	6.7	36.7	43.3
	75	31	24	11.1	33.3	48	28	19	14.3	17.9	32.1
	60	32	25	15.7	51.0	25	10	10	0.0	0.0	0.0
	49	23	17	0.0	0.0	61	35	26	17.1	8.6	25.7
	17	28	11	35.0	45.0	35	34	16	14.7	38.2	52.9
	50	31	20	11.5	23.1	36	17	17	0.0	0.0	0.0
	38	30	15	37.9	48.3	27	32	11	31.3	34.4	65.6
	62	35	20	22.6	35.5	28	29	11	20.7	41.4	62.1
	61	31	20	22.6	38.7	39	30	18	13.8	24.1	37.9
	25	13	9	21.7	60.9	78	37	29	13.5	8.1	21.6
	46	28	15	17.9	46.4	65	43	24	14.0	30.2	44.2
	54	22	17	22.6	45.2	46	20	20	0.0	0.0	0.0
	29	26	16	33.3	46.7	80	45	31	15.6	15.6	31.1
	53	26.8	27	8.6	22.9	-	-	-	-	-	-
	45	49	17	16.1	45.2	-	-	-	-	-	-
	27	12	13	0.0	0.0	-	-	-	-	-	-
	54	24	19	17.9	32.1	-	-	-	-	-	-
	49	13	17	0.0	22.7	-	-	-	-	-	-
	50	26	20	3.8	23.1	-	-	-	-	-	-
Mean ± DP	42.8 ± 16.4	26.8 ± 9.3	19.0 ± 5.5			42.2 ± 18.1	29.9 ± 9	18.4 ± 6.6
Total	1,285	804	497		38.2	1,013	717	441			38.3

ISAD-PI: Home Health Survey in Piauí; PSU: primary sampling unit; %RR: % response rate; %OF: % offside rate.