Table 1 Descriptive statistics for breastfeeding outcomes in the cohort
From: Factors associated with duration of breastfeeding in women giving birth for the first time
Variable | Overall N = 5249 | Did you ever breastfeed this baby? N = 5249 | How old was this baby when all breastfeeding stopped? N = 4704 (8 missing) | How old was this baby when exclusive breastfeeding stopped? N = 3726 (1 missing) | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
Yes N = 4712 | No N = 537 | P* | > 6 m N = 2739 | <=6 m N = 1965 | P* | > 6 m N = 1161 | <=6 m N = 2565 | P* | ||
Age, mean (SD) | 27.6 (5.4) | 27.9 (5.) | 24.9 (6.0) | < 0.001 | 28.8 (4.8) | 26.6 (5.6) | < 0.001 | 28.8 (4.7) | 27.6 (5.3) | < 0.001 |
BMI, mean (SD) | 26.2 (6.2) | 25.9 (5.9) | 29.2 (8.3) | < 0.001 | 25.1 (5.1) | 26.9 (6.6) | < 0.001 | 25.0 (4.9) | 25.8 (6.0) | < 0.001 |
Race or Ethnicity |  |  |  | < 0.001 |  |  | < 0.001 |  |  | 0.32 |
 Non-Hispanic white | 3551 (67.7%) | 3270 (69.4%) | 281 (52.3%) |  | 2073 (75.7%) | 1192 (60.7%) |  | 856 (73.7%) | 1835 (71.5%) |  |
 Non-Hispanic black | 524 (10.0%) | 377 (8.0%) | 147 (27.4%) |  | 149 (5.4%) | 226 (11.5%) |  | 75 (6.5%) | 203 (7.9%) |  |
 Hispanic | 733(14.0%) | 657 (13.9%) | 76 (14.2%) |  | 275 (10.0%) | 382 (19.4%) |  | 130 (11.2%) | 312 (12.2%) |  |
 Other | 441 (8.4%) | 408 (8.7%) | 33 (6.2%) |  | 242 (8.8%) | 165 (8.4%) |  | 100 (8.6%) | 215 (8.4%) |  |
Poverty |  |  |  | < 0.001 |  |  | < 0.001 |  |  | < 0.001 |
 > 200% of FPL | 3317 (63.2%) | 3136 (66.6%) | 181 (33.7%) |  | 2065 (75.4%) | 1068 (54.4%) |  | 867 (74.7%) | 1697 (66.2%) |  |
 100–200% of FPL | 613 (11.7%) | 546 (11.6%) | 67 (12.5%) |  | 291 (10.6%) | 255 (13.0%) |  | 134 (11.5%) | 281 (11.0%) |  |
 < 100% of FPL | 550 (10.5%) | 439 (9.3%) | 111 (20.8%) |  | 197 (7.2%) | 241 (12.3%) |  | 75 (6.5%) | 259 (10.1%) |  |
 Refused | 769 (14.7%) | 591 (12.5%) | 170 (33.2%) |  | 186 (6.8%) | 401 (20.4%) |  | 85 (7.3%) | 328 (12.8%) |  |
Education |  |  |  | < 0.001 |  |  | < 0.001 |  |  | < 0.001 |
 High school or less | 168 (32.1%) | 1336 (28.4%) | 351 (65.4%) |  | 522 (19.1%) | 808 (41.1%) |  | 239 (20.6%) | 743 (29.0%) |  |
 Bachelor’s degree or less | 2167 (41.3%) | 2035 (43.2%) | 132 (24.6%) |  | 1256 (45.9%) | 779 (39.6%) |  | 521 (44.9%) | 1102 (43.0%) |  |
 Master’s degree and higher | 1395 (26.6%) | 1341 (28.5%) | 54 (10.1%) |  | 961 (35.1%) | 378 (19.2%) |  | 401 (34.5%) | 720 (28.1%) |  |
Was this pregnancy planned, yes | 3410 (65.0%) | 3188 (67.7%) | 222 (41.3%) | < 0.001 | 2106 (76.9%) | 1078 (54.9%) | < 0.001 | 882 (76.0%) | 1723 (67.2%) | < 0.001 |
Was this delivery by Cesarean, yes | 1418 (27.0%) | 1251 (26.6%) | 167 (31.1%) | 0.02 | 683 (24.9%) | 566 (28.8%) | 0.003 | 298 (25.7%) | 620 (24.2%) | 0.33 |
Did you smoke any tobacco products in the month before delivery? yes | 143 (2.7%) | 87 (1.9%) | 56 (10.4%) | < 0.001 | 20 (0.7%) | 66 (3.4%) | < 0.001 | 7 (0.6%) | 70 (2.7%) | < 0.001 |
Gestational age at the time of delivery, mean (SD) | 38.9 (2.0) | 39.0 (2.0) | 38.4 (2.5) | < 0.001 | 39.1 (1.8%) | 38.8 (2.2%) | < 0.001 | 39.1 (1.5) | 39.0 (2.2) | 0.53 |
Mental health disorder, yes | 1164 (22.2%) | 1031 (21.9%) | 133 (24.8%) | 0.13 | 574 (21.0%) | 454 (23.1%) | 0.08 | 244 (21.0%) | 572 (22.3%) | 0.38 |
Depression, yes | 750 (14.3%) | 671 (14.2%) | 79 (14.7%) | 0.77 | 378 (13.8%) | 292 (14.9%) | 0.31 | 165 (14.2%) | 353 (13.8%) | 0.71 |
Bipolar, yes | 79 (1.5%) | 58 (1.2%) | 21 (3.9%) | < 0.001 | 17 (0.6%) | 40 (2.0%) | < 0.001 | 9 (0.8%) | 40 (1.6%) | 0.05 |
Anxiety, yes | 593 (11.3%) | 544 (11.5%) | 49 (9.1%) | 0.09 | 302 (11.0%) | 241 (12.3%) | 0.19 | 116 (10.0%) | 311 (12.1%) | 0.06 |