Characterization of RPL patients and fertile controls from Estonia and Denmark at the time of recruitment.

aAge at the time of the 3rd miscarriage for RPL patients or at the time of 2nd (Denmark) or 3rd (Estonia) live birth for fertile controls required for recruitment into the study.
bAge at the time of recruitment into the study.
cRecruitment criteria included at least two (Denmark) or three (Estonia) live births and no previous pregnancy losses at the time of recruitment.
dRecruitment criteria included at least three pregnancy losses at the time of recruitment.
eDefined based on the fetal development at the time of pregnancy loss.
gw, gestational weeks; n.a., not applicable; SD, standard deviation.
Characterization of RPL patients and fertile controls from Estonia and Denmark at the time of recruitment.

a 复发性流产（RPL, Recurrent Pregnancy Loss）患者需采集其第三次流产时的年龄，可生育对照人群则需采集其第二次（丹麦受试者）或第三次（爱沙尼亚受试者）活产时的年龄，上述年龄为该研究招募所需的采集指标。
b 受试者参与本研究招募时的实际年龄。
c 可生育对照人群的招募标准：需至少拥有2次活产史（丹麦地区）或3次活产史（爱沙尼亚地区），且招募时无既往妊娠丢失病史。
d 复发性流产患者的招募标准：招募时至少存在3次妊娠丢失史。
e 基于妊娠丢失发生时的胎儿发育阶段进行定义。
gw即孕周（gestational weeks）；n.a.即不适用（not applicable）；SD即标准差（standard deviation）。
爱沙尼亚与丹麦地区复发性流产患者及可生育对照人群的招募时特征分析。