Table 4.

Oxygen saturation (SpO₂) and clinical outcomes of participants with at least one SpO₂ < 92 % at any study visit among young infants undergoing routine pulse oximetry at primary care clinics in Karachi, Pakistan

ID	Age (days)1	SpO2 attempt #1 (%)a	SpO2 Attempt #2 (%)a	IMCI signsa,b	Physician diagnosisa	# of study visitsc	SpO2 range (%)c	Vital status at 59 days of age
1	3	72	-	RR, NM	Acute respiratory infection	1	N/A	Alive
2	5	73	99	RR, NM	Sepsis	5	91 – 99	Alive
3	37	87	88	RR	Acute respiratory infection, congenital heart disease	5	82 – 93	Alive
4	7	84	91	None	No acute illness	1	N/A	Deceased
5	3	84	94	None	Hyperbilirubinemia	3	97 – 99	Alive
6	1	86	-	RR	Acute respiratory infection	10	93 – 100	Alive
7	0	90	-	None	No acute illness	1	N/A	Alive
8	1	91	-	FVR, RR, LCI, PF	Sepsis	5	94 – 100	Alive
9	14	91	-	RR, LCI	Sepsis	4	97	Alive
10	2	91	-	None	No acute illness	2	97	Lost to follow Up

^aRefers to first clinic visit at which hypoxemia (SpO₂ < 92 %) was detected for each infant

^bIntegrated management of childhood illness (IMCI) algorithm signs of very severe disease in a young infant, as detected by the study worker: RR = Respiratory rate ≥ 60; NM = No movement or movement only on stimulation; FVR = Fever; LCI = Severe lower chest wall in-drawing; PF = History of poor feeding

^cRefers to other clinic visits by the same infant during first 2 months of life