Prediction statistics for trappin2/elafin for values >200 ng/ml identifying high risk women who develop a short cervix within 6 or 8 weeks following the test.

Test taken as a single measurement between either 14+0 to 14+6 or 14+0 to 15+6 weeks' in cases who developed a short cervix by 24 weeks'.

针对24孕周前发生宫颈缩短的病例，本检测为单次测量，测量时间区间可选为孕14周0天至14周6天，或孕14周0天至15周6天。