Table 2. Baseline Characteristics (n = 278) Median age in years (range) Ethnicity, No. (%) White Black Hispanic/Latina Asian/Pacific Islander Mixed/Other Primary Language, No. (%) English Spanish Midwife Provider Type, No. (%) Nurse Practitioner Physician Prior HIV testing, No. (%) Decisional Conflict Score, No. (%) [95% Confidence Interval] Low DCS (#25) High DCS (.25) Mean Decisional Conflict Score (SD) [95% Confidence Interval] Median Decisional Conflict Score (range) Mean knowledge score (SD) [95% Confidence Interval] Median knowledge score (range) Testing Uptake, No. (%) [95% Confidence Interval] doi:10.1371/journal.pone.0005166.t003 PLoS ONE | www.plosone.org Median # months since prior HIV test (range) Self-perceived likeliness of HIV infection: Median (range)@ *Wilcoxon Mann-Whitney test #Fisher’s Exact Test @Self-perceived likeliness of HIV infection based on 5 point Liekert scale 1 = very likelyR5 = very unlikely [14] doi:10.1371/journal.pone.0005166.t002 women in the abbreviated arm being less likely to know that HIV- infected pregnant women can take medication to decrease the risk of perinatal HIV transmission. As more institutions and prenatal practices institute the CDC recommended abbreviated HIV pre- test counseling, our data identify gaps in knowledge among low- income, ethnically-diverse pregnant patients and may assist in guiding population-level campaigns that will likely replace the one- on-one pre-test counseling session as a source of patient education. Table 3. Decisional conflict, satisfaction, knowledge and testing uptake Abbreviated (n = 134) 26.0 (17–38) 8 (6.0) 23 (17.2) 84 (62.7) 18 (13.4) 1 (0.7) 62 (46.3) 72 (53.7) 82 (61.2) 13 (9.7) 39 (29.1) 80 (59.7) 24.0 (0.6–169.1) 5.0 (1–5) 96 38 (71.6%) [64.0–79.3] (28.4%) [20.7–36.0] 19.9 (21.0) [16.3–23.5] 10.0 (0–90) 78.4 (15.5) [75.7–81.0] 133 (99.3) [97.8–100] 5 Abbreviated n = 134 (48.2) Standard n = 144 (51.8) 77.8 (11.1–100.0) 88.9 (44.4–100.0) Pretest HIV Counseling Trial p-value .57 * .15 # .67 .57 .34 .17 * .81 * p-value .37 .17 ,.01 .12 Standard (n = 144) 26.0 (16–42) 16 (11.1) 19 (13.2) 98 (68.1) 11 (7.6) 0 (0) 63 (43.8) 81 (56.3) 96 (66.7) 10 (6.9) 38 (26.4) 94 (65.3) 17.7 (1.3–176.7) 5.0 (1–5) 110 (76.4%) [69.5–83.3] 34 (23.6%) [16.7–30.5] 16.0 (17.4) [13.1–18.9] 10.0 (0–70) 83.7 (13.2 ) [81.5–85.9] 139 (96.5) [93.5–99.5] April 2009 | Volume 4 | Issue 4 | e5166