| |
alpha antigen (
bca
) ‡
|
beta antigen (
bac
) ‡
|
Rib protein (
rib
)
|
|---|
|
GBS Collection
|
Number screened
|
n
|
(%)
|
Number screened
|
n
|
(%)
|
Number screened
|
n
|
(%)
|
|---|
|
1. Sexually active college women with UTI and sex partner†
|
145
|
63
|
(43)
|
147
|
26
|
(18)
|
146
|
33
|
(23)
|
|
2. Sexually active college women without UTI and their sex partner
|
93
|
58
|
(62)
|
93
|
26
|
(28)
|
93
|
17
|
(18)
|
|
3. Infected newborns < 7 days of age
|
100
|
29
|
(29)
|
100
|
20
|
(20)
|
100
|
28
|
(28)
|
|
4. Random sample of college students†
|
53
|
25
|
(47)
|
53
|
18
|
(34)
|
53
|
13
|
(25)
|
|
5. Pregnant women
|
135
|
41
|
(30)
|
131
|
18
|
(14)
|
134
|
27
|
(20)
|
|
Total
|
526
|
216
|
(41)
|
524
|
108
|
(21)
|
526
|
118
|
(22)
|
- Note: n (%) represents the number of participants with the respective gene in each population; the number screened varies slightly by gene and population because a result could not be obtained for 4 strains tested for rib and bca, and 6 strains tested for bac despite repeated testing.
- †There was no difference in gene frequency by gender so the results were combined for presentation.
- ‡Using the Chi-square test, a significant difference at the p = .05 significance level was observed between bca frequencies in collection 2 versus 3 (p < .0001), 5 (p < .0001) and 1 (p = .004); and between bac frequencies in collection 2 versus 5 (p = .008).
