Table 1 |
||||||
|
Comparison of new scorecard with other scoring systems used in diagnosing group A streptococcal (GAS) pharyngitis |
||||||
| Study author (year) |
Features included in final algorithm |
Age group (years) |
Sample size |
Sensitivity (%) |
Specificity (%) |
Positive predictive value(%) |
|
|
||||||
| The current scorecard |
Ten criteria (See Figure 1) |
5 yrs to 99 yrs |
106 |
93.3 |
63.2 |
50 |
|
|
||||||
| Breese‡ (1977)15 |
Season (late winter or early spring) Age (5-10 years) Elevated white blood cell count
Temperature > 38°C Sore throat Absence of cough Headache Pharyngeal erythema or oedema
or exudates Tender or enlarged cervical lymph nodes |
Children |
670 |
68 |
85 |
84 |
|
|
||||||
| Centor† (1981)16 |
History of fever Tonsillar exudates Tender and enlarged anterior cervical lymph nodes
Absence of cough |
> 15 |
234 |
65-83 |
67-91 |
56 |
|
|
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|
Bakare and Schattner Asia Pacific Family Medicine 2010 9:9 doi:10.1186/1447-056X-9-9 |
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