Table 1.

Demographic Characteristics of 52 Cases With Invasive Group A Streptococcal Infection and 172 Controls With Uncomplicated Varicella

CharacteristicCases
(n = 52) %
Controls
(n = 172) %
P Value
Race, white6479<.05
Hispanic origin3320NS
Sex, male5647NS
Mean age in months (standard deviation)58 (32)62 (34)NS
Respondent's education level
 <High school128NS
 High school3532
 Some college2734
 College+2726
 Unknown01
Household income
 <$15k298<.01
 $15–29k2522
 $30–44k1720
 $45–59k1017
 $60+k1424
 Unknown/refused68
Mean persons per bedroom
 ≤1.01228<.01
 1.1–1.53343
 >1.55629
  • NS indicates not significant.