Appendix A Distribution of Annotated Clinical Findings for Influenza

Influenza Clinical Finding	IH	UPMC	Influenza Clinical Finding	IH	UPMC
Abdominal Pain	92	91	Myalgia	41	91
Abdominal Tenderness	165	201	Nasal Flaring	73	5
Acute Onset of Symptoms	9	24	Nausea	39	121
Anorexia	81	67	Nonproductive Cough	20	28
Apnea	21	9	Other Abnormal Breath Sounds	227	196
Arthralgia	8	5	Other Abnormal X-ray Finding	75	164
Barking Cough	14	5	Other Cough	357	310
Bilateral Acute Conjunctivitis	124	87	Other Pneumonia	113	162
Bronchiolitis	31	16	Paroxysmal Cough	2	4
Bronchitis	4	22	Pharyngitis Diagnosis	18	13
Cervical Lymphadenopathy	110	79	Pharyngitis on Exam	153	130
Chest Pain	34	107	Poor Antipyretics Response	54	23
Chest Wall Retractions	116	51	Poor Feeding	85	96
Chills	10	81	Productive Cough	9	48
Conjunctivitis	1	3	Rales	217	181
Crackles	220	206	Reported Fever	580	623
Croup	19	26	Respiratory Distress	250	192
Cyanosis	100	39	Rhonchi	272	187
Decreased Activity	74	56	Rigor	1	4
Diarrhea	142	145	RSV Lab Testing Only Ordered	18	1
Dyspnea	137	306	RSV Positive Result	45	2
Grunting	70	8	Runny Nose	191	85
Headache	96	126	Seizures	18	19
Hemoptysis	4	12	Sore Throat	77	77
Highest Measured Temperature	189	188	Streptococcus Positive Result	46	10
Hoarseness	9	2	Stridor	47	30
Hypoxemia (Sp02 < 90% on RA)	278	183	Stuffy Nose	127	94
Ill Appearing	85	57	Tachypnea	264	239
Infiltrate	120	224	Toxic Appearance	101	14
Influenza Lab Testing Only Ordered	45	116	Upper Respiratory Infection	51	129
Influenza Positive Result	146	10	Viral Pneumonia	16	1
Influenza-like Illness or URI	210	109	Viral Syndrome	192	136
Lab Ordered (Nasal Swab)	4	62	Vomiting	254	221
Lab Testing 2+ Resp. Pathogens Including Influenza	112	8	Weakness and Fatigue	47	132
Malaise	11	21	Wheezing	349	324