Table 1 Maternal characteristics in the matched cohort of 831 women with pregnancy associated cancer (PAC) and 3324 cancer-free women. Lombardy, Italy. 2008–2017
Pregnancy associated cancer women N=831 | Cancer-free women N=3324 | Standardized difference (absolute) | |
|---|---|---|---|
N (%) | N (%) | ||
Maternal Age (Year) a | |||
< 30 | 107 (12.9) | 428 (12.9) | Matching variable |
30–34 | 260 (31.3) | 1040 (31.3) | |
35–40 | 379 (45.6) | 1516 (45.6) | |
> 40 | 85 (10.2) | 340 (10.2) | |
Mean (SD) | 34.8 (4.6) | 34.8 (4.6) | |
Calendar Year at Birth a, b | |||
2008 | 84 (10.1) | 336 (10.1) | Matching variable |
2009 | 75 (9.0) | 300 (9.0) | |
2010 | 100 (12.0) | 400 (12.0) | |
2011 | 98 (11.8) | 392 (11.8) | |
2012 | 83 (10.0) | 332 (10.0) | |
2013 | 82 (9.9) | 328 (9.9) | |
2014 | 87 (10.5) | 348 (10.5) | |
2015 | 84 (10.1) | 336 (10.1) | |
2016 | 86 (10.4) | 344 (10.4) | |
2017 | 52 (6.3) | 208 (6.3) | |
Nationality | |||
Italian | 725 (87.2) | 2808 (84.5) | 0.078 |
Foreign | 106 (12.8) | 516 (15.5) | −0.078 |
Marital Status | |||
Married | 575 (69.2) | 2272 (68.4) | 0.018 |
Not Married | 234 (28.2) | 981 (29.5) | −0.030 |
Missing | 22 (2.6) | 71 (2.1) | 0.033 |
Education | |||
Middle School or lower | 163 (19.6) | 711 (21.4) | - 0.044 |
High School | 382 (46.0) | 1471 (44.3) | 0.034 |
University or upper | 282 (33.9) | 1118 (33.6) | 0.006 |
Missing | 4 (0.5) | 24 (0.7) | −0.031 |
Employment | |||
Employed | 665 (80.0) | 2616 (78.7) | 0.033 |
Not employed | 165 (19.9) | 708 (21.3) | −0.036 |
Missing | 1 (0.1) | 0 (0.0) | 0.049 |
Type of conception | |||
Spontaneous | 799 (96.1) | 3180 (95.7) | 0.024 |
Assisted | 29 (3.5) | 132 (4.0) | - 0.025 |
Missing | 3 (0.4) | 12 (0.4) | 0.0 |
History of diabetes | |||
No | 822 (98.9) | 3307 (99.5) | - 0.067 |
Yes | 9 (1.1) | 17 (0.5) | 0.067 |
History of hypertension | |||
No | 800 (96.3) | 3233 (97.3) | - 0.057 |
Yes | 31 (3.7) | 91 (2.7) | 0.057 |