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. 2019 Jan 28;18:2325958218823530. doi: 10.1177/2325958218823530

Table 1.

Comparative Description of LTFU before Retest by Age, Parity, and Gestational Age.

Comparing key maternal variables between pregnant women that retested and those who were loss to follow-up (LTFU) before retest (N = 16 838)
Variables Retested (%) LTFU (%) P Value
Age group (years)
 ≤24 (n = 9622) 6444 (67.0) 3178 (33.0)
 25-34 (n = 5922) 4094 (69.1) 1828 (30.9) <.001
 ≥35 (n = 1294) 801 (61.9) 493 (38.1)
Parity category
 0 (n = 5527) 3940 (71.3) 1587 (28.8)
 1-3 (n = 8402) 5790 (68.9) 2612 (31.1) <.001
 ≥4 (n = 2909) 1609 (55.3) 1300 (44.7)
Gestational categorya
 <28-week pregnancy  (n = 10 587) 7256 (68.5) 3331 (31.5) <.001
 ≥28-week pregnancy  (n = 2032) 866 (42.6) 1166 (57.4)

aData on weeks of gestation could not be reconstructed for 4219 pregnant women.