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. Author manuscript; available in PMC: 2013 Jun 11.
Published in final edited form as: Arch Intern Med. 2012 Jun 11;172(11):847–852. doi: 10.1001/archinternmed.2012.950

Table 4.

Risk of GAS Pharyngitis by Age Group for Retail Health Clinic Patients with 0, 1, 2, 3 or 4 Clinical Predictors, n = 206,870

Number GAS positive/Total (% GAS positive) by Age Group
Number of Clinical
Predictors Present		 3-14 years old
n=64,789		 15-44 years old
n=114,803		 >=45 years old
n=27,278
0 Predictors
(# positive/ total)
(% positive, 95% CI)
670/4009
(17, 16-18))
745/9778
(8, 7-8))
258/3825
(7, 6-8))
1 Predictor 3816/16,683
(23, 22-24))		 4218/34,381
(12, 12-13)		 1031/10,699
(10, 9-10))
2 Predictors 7866/22,811
(34, 34-35))		 8548/38,542
(22, 22-23)		 1562/8625
(18, 17-19))
3 Predictors 8079/16,122
(50, 49-51))		 9099/23,409
(39, 38-39))		 1162/3360
(35, 33-36))
4 Predictors 3528/5164
(68, 67-70))		 4975/8693
(57, 56-58))		 456/769
(59, 56-63))
Overall 23,959/64,789
(37, 37-37)		 27,585/114,803
(24, 24-24)		 4469/27,278
(16, 16-17)