Table 4.

Time spent at different categories of SpO₂ levels for 4 weeks with a interquartile range

Time spent	Pre-intervention			Post-intervention			Total
	median	25th percentile	75th percentile	median	25th percentile	75th percentile	median	25th percentile	75th percentile
Week 1
Below 91%	2	0	6	3.2	1	5.7	2.3	0.5	6
On 91–95%	30.5	11	58	45.5	20.8	67.9	38	16.7	59.9
Above 95%	66	35	88	50.3	25.7	78.7	58.9	30.1	82.8
Week 2
Below 91%	1	0	7.8	3.4	1.1	7.9	2	0	7.9
On 91–95%	29.5	6	57.8	45.3	15.1	69.4	38	9	61
Above 95%	67	30	93.5	50.9	20.8	84.9	59	26.1	91
Week 3
Below 91%	2	0	10	3.5	0.6	8.1	2.8	0	9
On 91–95%	32	6	55	35.7	19.4	67	33.9	7.8	60
Above 95%	63	30	93	61	24.7	78.2	61.8	27.9	90.8
Week 4
Below 91%	2	0	10	3.1	1	7.5	2.4	0	9
On 91–95%	22.5	5	50	28.9	10	60.4	23	7	55.7
Above 95%	75	35.3	94	67.9	28.6	86.2	74	33	92