Table 1.

Rates of Group B Streptococcal Detection: Patient-Collected Vs Provider-Collected Specimens

Relative Risk (95% CI)χ2PPatient Self-CollectionUsual CareTotals
Site 11.49 (0.85-2.63)1.94.16
    GBS+212243
    GBS-144236380
    Totals165258423
    Rate of positive tests12.73%8.53%
Site 21.11 (0.64-1.87)0.11.74
    GBS+183250
    GBS-110217327
    Totals128249377
    Rate of positive tests14.06%12.85%
Overall1.25 (0.85-1.84)1.28.26
    GBS+395493
    GBS-254453707
    Totals293507800
    Rate of positive tests13.31%10.65%

  • GBS+, group B streptococcal positive; GBS-, group B streptococcal negative.