Table 4. Indications for delivery at early preterm, late preterm and term gestation.
| Characteristics | Period 1 (1995–2000) | Period 2 (2001–2006) | Period 3 (2007–2012) | Period 4 (2013–2018) | P-valuea) | |
|---|---|---|---|---|---|---|
| Early preterm | (n=82) | (n=172) | (n=169) | (n=151) | 0.010 | |
| PTL | 49 (59.8) | 95 (55.2) | 97 (57.4) | 66 (43.7) | ||
| PPROM | 27 (32.9) | 55 (32.0) | 43 (25.4) | 60 (39.7) | ||
| Maternal-fetal indication | 6 (7.3) | 22 (12.8) | 29 (17.2) | 25 (16.6) | ||
| Late preterm | (n=205) | (n=284) | (n=187) | (n=159) | <0.001 | |
| PTL | 42 (20.5) | 58 (20.4) | 61 (32.6) | 47 (29.6) | ||
| PPROM | 30 (14.6) | 55 (19.4) | 60 (32.1) | 52 (32.7) | ||
| Maternal-fetal indication | 31 (15.1) | 45 (15.8) | 36 (19.3) | 41 (25.8) | ||
| Elective | 102 (49.8) | 126 (44.4) | 30 (16.0) | 19 (11.9) | ||
| Term | (n=84) | (n=152) | (n=243) | (n=245) | 0.171 | |
| Spontaneous labor | 4 (4.8) | 11 (7.2) | 19 (7.8) | 8 (3.3) | ||
| PROM | 4 (4.8) | 9 (5.9) | 12 (4.9) | 8 (3.3) | ||
| Maternal-fetal indication | 6 (7.1) | 12 (7.9) | 21 (8.6) | 19 (7.8) | ||
| Elective | 70 (83.3) | 120 (78.9) | 191 (78.6) | 210 (85.7) | ||
Data expressed as number (%).
PTL, preterm labor; PPROM, preterm premature rupture of membranes; PROM, premature rupture of membranes.
a)Linear-by-linear regression.