| Characteristic | Lepto+ | Lepto− | p Value‡ | UU-2+ | UU-2− | p Value‡ | UP+ | UP− | p Value | A vaginae+ | A vaginae− | p Value‡ | BVAB1+ | BVAB1− | p Value‡ |
| n = 19 (%) | n = 10 (%) | n = 9 (%) | n = 20 (%) | n = 10 (%) | n = 18 (%) | n = 17 (%) | n = 12 (%) | n = 8 (%) | n = 21 (%) | ||||||
| Anaerobic bacteria† | 42.1 | 0.0 | 0.02 | 33.3 | 25.0 | 0.30 | 40.0 | 22.2 | 0.21 | 41.2 | 8.3 | 0.06 | 37.5 | 23.8 | 0.27 |
| M hominis | 21.4 | 0.0 | 0.18 | 0.0 | 15.8 | 0.48 | 0.0 | 18.8 | 0.28 | 21.4 | 0.0 | 0.18 | 25.0 | 6.3 | 0.22 |
| G vaginalis | 42.1 | 10.0 | 0.08 | 33.3 | 30.0 | 0.33 | 60.0 | 16.7 | 0.02 | 41.2 | 16.7 | 0.13 | 37.5 | 28.6 | 0.30 |
*Anaerobic bacteria, M hominis and G vaginalis endometrial cultures available on a subset of 29 women. †Selected Gram-negative anaerobes include: Prevotellabivia, P disiens, Prevotellaoralis/veroralis, P oulora/veroralis, P buccalis/oralis, P oris/buccae, Preveotella species, Bacteroides ureolyticus, anaerobic GNR non-pigmented, black anaerobic negative rod, Prevotella intermedia, P corporis, P denticola/loeschii, P denticola/melaninogenica, Porphyromonas asaccharolytica, P endodontails/asaccharolytica, Bactercides levii, Bacteroides fragilis, Bacteroides thetaiotaormicron, Bacteroides distasonis, Bacteroides ovatus, Bacteroides caccae, Bacteroides uniformis, Bacteroides vulgatus, Bacteroides merdae, Bacteroides, Fusobacterium nucleatum, Fusobacterium spp, and Veillonella sp. Selected anaerobic Gram-positive cocci include: P anaerobius, P asaccharolyticus, P magnus/micros, P prevottii, P tetradius, Peptococcusniger, Peptostreptococcus species and not speciated anaerobic Gram-positive cocci. ‡Fisher’s exact. BV, bacterial vaginosis; BVAB1, bacterial vaginosis-associated bacteria type 1; Lepto, Leptotrichia; UP, Ureaplasma parvum; UU-2, Ureaplasma urealyticum biovar 2.