1982 | 1993 | 2004 | Pooled cohorts | ||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Maternal age, y | Deaths/Births (MR)* | Crude OR (95%CI) | Adjusted OR (95%CI) ¹ | Deaths/Births (MR)* | Crude OR (95%CI) | Adjusted OR (95%CI) ¹ | Deaths/Births (MR)* | Crude OR (95%CI) | Adjusted OR (95%CI) ¹ | P valueb | Deaths/Births (MR)* | Crude OR (95%CI)2 | Adjusted OR (95%CI) 3 |
FETAL MORTALITY | |||||||||||||
0.838 | |||||||||||||
< 20 | 9/917 (9.8) | 0.8 (0.4; 1.6) | 0.5 (0.3; 1.2) | 8/918 (8.7) | 1.0 (0.4; 2.2) | 0.7 (0.3; 1.7) | 6/803 (7.4) | 0.9 (0.4; 2.3) | 0.6 (0.2; 1.8) | 23/2,638 (8.7) | 0.9 (0.5; 1.4) | 0.6 (0.4; 1.0) | |
20-29 | 44/3,424 (12.9) | 1.0 | 1.0 | 25/2,779 (9.0) | 1.0 | 1.0 | 17/2,084 (8.0) | 1.0 | 1.0 | 86/8,287 (10.4) | 1.0 | 1.0 | |
P-value | 0.446 a | 0.107 a | 0.937 a | 0.409 a | 0.852 a | 0.365 a | 0.522 a | 0.054 a | |||||
EARLY NEONATAL MORTALITY | |||||||||||||
0.713 | |||||||||||||
< 20 | 16/908 (17.6) | 1.3 (0.7; 2.3) | 1.2 (0.6; 2.3) | 8/910 (8.8) | 0.9 (0.4; 2.1) | 1.0 (0.4; 2.5) | 9/792 (11.4) | 1.2 (0.5; 2.6) | 0.9 (0.3; 2.2) | 33/2,610 (12.6) | 1.2 (0.8; 1.7) | 1.0 (0.7; 1.6) | |
20-29 | 46/3,380 (13.6) | 1.0 | 1.0 | 26/2,754 (9.4) | 1.0 | 1.0 | 20/2,062 (9.7) | 1.0 | 1.0 | 92/8,196 (11.2) | 1.0 | 1.0 | |
P-value | 0.380 a | 0.584 a | 0.859 a | 0.990 a | 0.695 a | 0.808 a | 0.479 a | 0.853 a | |||||
LATE NEONATAL MORTALITY | |||||||||||||
0.656 | |||||||||||||
< 20 | 4/908 (4.4) | 1.5 (0.5; 4.8) | 1.1 (0.3; 3.9) | 4/910 (4.4) | 2.0 (0.6; 7.2) | 1.9 (0.4; 7.8) | 6/792 (7.6) | 3.1 (1.0; 10.3) | 2.5 (0.6; 10.5) | 14/2,610 (5.4) | 2.1 (1.1; 4.1) | 1.6 (0.7; 3.4) | |
20-29 | 10/3,380 (3.0) | 1.0 | 1.0 | 6/2,754 (2.2) | 1.0 | 1.0 | 5/2,062 (2.4) | 1.0 | 1.0 | 21/8,196 (2.6) | 1.0 | 1.0 | |
P-value | 0.513 a | 0.901 a | 0.292 a | 0.399 a | 0.062 a | 0.216 a | 0.040 a | 0.272 a | |||||
POSTNEONATAL MORTALITY | |||||||||||||
0.682 | |||||||||||||
< 20 | 23/908 (25.3) | 1.6 (1.0; 2.7) | 2.2 (1.3; 3.7) | 5/910 (5.5) | 0.8 (0.3; 2.3) | 1.1 (0.3; 3.4) | 8/792 (10.1) | 1.4 (0.6; 3.3) | 1.8 (0.6; 4.9) | 36/2,610 (13.8) | 1.4 (0.9; 2.1) | 1.8 (1.1; 2.9) | |
20-29 | 53/3,380 (15.7) | 1.0 | 1.0 | 18/2,754 (6.5) | 1.0 | 1.0 | 15/2,062 (7.3) | 1.0 | 1.0 | 86/8,196 (10.5) | 1.0 | 1.0 | |
P-value | 0.061 a | 0.017 a | 0.726 a | 0.906 a | 0.460 a | 0.278 a | 0.100 a | 0.012 a |