{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,24]],"date-time":"2026-08-24T23:11:48Z","timestamp":1787613108583,"version":"build-2736575974"},"reference-count":25,"publisher":"Wiley","issue":"1","license":[{"start":{"date-parts":[[2016,12,2]],"date-time":"2016-12-02T00:00:00Z","timestamp":1480636800000},"content-version":"vor","delay-in-days":2254,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Intl J Gynecology &amp; Obste"],"published-print":{"date-parts":[[2010,10]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:sec><jats:title>Objective<\/jats:title><jats:p>To assess the accuracy of a sign of bacterial vaginosis and a sign of cervical insufficiency in predicting preterm labor (PTL, occurring in the 37th week or earlier) and early PTL (occurring in the 34th week or earlier) in a low\u2010risk cohort of 316 pregnant women.<\/jats:p><\/jats:sec><jats:sec><jats:title>Method<\/jats:title><jats:p>Vaginal pH was assessed using test gloves and cervical length (CL) was measured by transvaginal ultrasound. A pH value less than 5.0 (the 95th\u2010percentile threshold) and a CL greater than 26 mm (the 5th\u2010percentile threshold) were considered normal.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>There were 14 participants (4.4%) with an elevated vaginal pH and 15 (4.7%) with a shortened CL. The incidence of PTL (&lt; 37 weeks) was 7.2%, while incidence of early PTL (\u2264 34 weeks) was 2.5%. A shortened CL was significantly correlated with PTL (likelihood ratio [LR] weighted by prevalence; 2.7; 95% CI, 1.1\u20136.7) but not with early PTL (LR, 0.8; 95% CI, 0.4\u20131.8). An elevated vaginal pH was a better predictor of PTL (LR, 3.7; 95% CI, 1.3\u201310.4) and early PTL (LR, 1.7; 95% CI, 1.1\u20133.1).<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusion<\/jats:title><jats:p>An elevated vaginal pH was a better predictor of early PTL than a shortened CL in this cohort of pregnant women at low risk.<\/jats:p><\/jats:sec>","DOI":"10.1016\/j.ijgo.2010.05.011","type":"journal-article","created":{"date-parts":[[2010,7,8]],"date-time":"2010-07-08T08:27:59Z","timestamp":1278577679000},"page":"41-44","source":"Crossref","is-referenced-by-count":10,"title":["Vaginal pH versus cervical length in the mid\u2010trimester as screening predictors of preterm labor in a low\u2010risk population"],"prefix":"10.1002","volume":"111","author":[{"given":"Ratko","family":"Matijevic","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ozren","family":"Grgic","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Mario","family":"Knezevic","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2016,12,2]]},"reference":[{"key":"e_1_2_6_2_2","doi-asserted-by":"publisher","DOI":"10.1016\/S0140-6736(08)60074-4"},{"key":"e_1_2_6_3_2","doi-asserted-by":"publisher","DOI":"10.1097\/GCO.0b013e3280895dd3"},{"key":"e_1_2_6_4_2","doi-asserted-by":"publisher","DOI":"10.1067\/mob.2003.339"},{"key":"e_1_2_6_5_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.clp.2005.05.007"},{"key":"e_1_2_6_6_2","doi-asserted-by":"publisher","DOI":"10.7326\/0003-4819-148-3-200802050-00008"},{"key":"e_1_2_6_7_2","doi-asserted-by":"publisher","DOI":"10.1097\/00007435-200105000-00011"},{"key":"e_1_2_6_8_2","doi-asserted-by":"publisher","DOI":"10.1067\/mob.2000.106766"},{"key":"e_1_2_6_9_2","doi-asserted-by":"publisher","DOI":"10.1136\/bmj.38169.519653.EB"},{"key":"e_1_2_6_10_2","doi-asserted-by":"publisher","DOI":"10.1056\/NEJM199512283332604"},{"key":"e_1_2_6_11_2","doi-asserted-by":"publisher","DOI":"10.1016\/S0002-9378(94)70098-2"},{"key":"e_1_2_6_12_2","doi-asserted-by":"publisher","DOI":"10.1067\/S0002-9378(03)00582-9"},{"key":"e_1_2_6_13_2","doi-asserted-by":"publisher","DOI":"10.1111\/j.1471-0528.2006.01087.x"},{"issue":"1","key":"e_1_2_6_14_2","first-page":"CD000262","article-title":"Antibiotics for treating bacterial vaginosis in pregnancy","volume":"24","author":"McDonald H.M.","year":"2007","journal-title":"Cochrane Database Syst Rev"},{"key":"e_1_2_6_15_2","doi-asserted-by":"publisher","DOI":"10.1001\/jama.286.11.1340"},{"key":"e_1_2_6_16_2","doi-asserted-by":"publisher","DOI":"10.1056\/NEJM199602293340904"},{"key":"e_1_2_6_17_2","doi-asserted-by":"publisher","DOI":"10.1016\/S0029-7844(98)00346-9"},{"key":"e_1_2_6_18_2","doi-asserted-by":"publisher","DOI":"10.1067\/mob.2000.106851"},{"key":"e_1_2_6_19_2","doi-asserted-by":"publisher","DOI":"10.1080\/00016340600935722"},{"key":"e_1_2_6_20_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.ultrasmedbio.2005.12.010"},{"key":"e_1_2_6_21_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.ijgo.2008.04.022"},{"key":"e_1_2_6_22_2","doi-asserted-by":"publisher","DOI":"10.1080\/jmf.11.1.30.33"},{"key":"e_1_2_6_23_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.ajog.2004.07.023"},{"key":"e_1_2_6_24_2","doi-asserted-by":"publisher","DOI":"10.1067\/mob.2003.184"},{"key":"e_1_2_6_25_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.bpobgyn.2006.12.005"},{"key":"e_1_2_6_26_2","doi-asserted-by":"publisher","DOI":"10.1016\/S0140-6736(08)60108-7"}],"container-title":["International Journal of Gynecology &amp; 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