Table 2.

Number of spirometric (S) and fractional exhaled nitric oxide (F) measurements by week and day of the week 2 in children enrolled in the Panel 5 and Panel 20 studies in Sarroch (Sardinia), Italy (January–June 2007).

			Weekday
			Monday		Tuesday		Wednesday		Thursday		Friday		Saturday		Total
Week	Panel		S	F	S	F	S	F	S	F	S	F	S	F	S	F
1	5		23		40		39		30		35		-		167
1		20	-	8	14	16 b	6	6	7	6	10	13	-	-	37	49
2		20	-	-	-	-	-	-	16	25	16	19	-	-	32	44
3		20	-	-	-	-	33	38	-	-	-	-	5	6	38	44
4		20	-	-	30	45	-	-	-	-	-	-	4	5	34	50
5	5		20		75		27		28		22		18		190
5		20	-	-	40	44	-	-	-	-	-	-	7	7	47	51
6		20	-	-	29	31	-	-	-	-	-	-	11	15 b	40	46
7		20	-	-	-	-	37	39	-	-	-	-	11	11	48	50
8		20	-	-	-	-	-	-	34 a	38	-	-	13	13	47	51
9	5		23		79		24		23		21		23		193
9		20	-	-	42	42	-	-	-	-	-	-	9a	9	51	51
10		20	-	-	-	-	36 a	38	-	-	-	-	13	15	49	53
11		20	-	-	-	-	41	46	Easter School Holiday						41	46
12		20	Easter School Holiday						-	-	11	13 b	-	-	11	13
13	5		20		42		23		20		46		29		180
13		20	-	-	5	6	-	-	-	-	20	20	17	19	42	45
14		20	36	40	-	-	-	-	-	-	-	-	-	-	36	40
15		20	School Holiday
16		20	-	23	-	-	-	-	-	-	-	-	19 a	19 b	19	42
17	5		41		42		26		21		27		22		179
17		20	19	24 b	-	-	-	-	-	-	-	-	19	20	38	44
18		20	-	-	-	-	23	23 b	-	-	-	-	24	25	47	48
19		20	25	25	24 a	25	-	-	-	-	-	-	-	-	49	50
20		20	-	-	-	-	31	35 b	-	-	-	-	10	12	41	47
Total Panel 5			127		278		139		122		151		92		909
Total Panel 20			80	120	184	109	207	225	57	69	57	65	162	176	747	864

^a cells refer to days with peaks (hourly SO₂ ≥ 100 µg/m³) occurring 2 days before the spirometric measurement. ^b cells refer to days with peaks (SO₂ ≥ 10 µg/m³ 12-h mean) occurring the night before the FeNO measurement.