Table 2.
Bivariate Analyses of the Association between Maternal Characteristics and BF initiation or BF Duration at 30 Days
| BF initiators n=1,688 | Non-BF initiators n=461 | BF at 30 days n=1,071 | No BF at 30 days n=589 | |||
|---|---|---|---|---|---|---|
| n (%) | n (%) | P | n (%) | n (%) | P | |
| Type of BFPC contact | ||||||
| Voicemails | <0.001 | 0.03 | ||||
| 0 | 1,028/1,355 (76) | 327/1,355 (24) | 627/1,008 (62) | 381/1,008 (38) | ||
| 1 | 391/482 (81) | 91/482 (19) | 258/388 (66) | 130/388 (33) | ||
| >1 | 269/312 (86) | 43/312 (14) | 186/264 (70) | 78/264 (30) | ||
| Phone conversations | <0.001 | <0.001 | ||||
| 0 | 887/1,205 (74) | 318/1,205 (26) | 500/875 (57) | 375/875 (43) | ||
| 1 | 449/553 (81) | 104/553 (19) | 303/439 (69) | 136/439 (31) | ||
| >1 | 352/391 (90) | 39/391 (10) | 268/346 (77) | 78/346 (23) | ||
| Mailings | 0.63 | 0.08 | ||||
| 0 | 1,375/1,755 (78) | 380/1,755 (22) | 883/1,348 (65) | 465/1,348 (35) | ||
| 1–3 | 313/394 (79) | 81/394 (21) | 188/312 (60) | 124/312 (40) | ||
| In-person | <0.001 | <0.001 | ||||
| 0 | 654/903 (72) | 249/903 (28) | 355/645 (55) | 290/645 (45) | ||
| 1 | 838/1,047 (80) | 209/1,047 (20) | 558/823 (68) | 265/823 (32) | ||
| ≥2 | 196/199 (98) | 3/199 (2) | 158/192 (82) | 34/192 (18) | ||
| Maternal age | <0.001 | <0.001 | ||||
| ≤18 | 377/604 (62) | 227/604 (38) | 171/372 (46) | 201 (54) | ||
| 19–29 | 1,747/2,681 (65) | 934/2,681 (35) | 1,022/1,723 (59) | 701/1,723 (41) | ||
| 30–39 | 511/767 (67) | 256/767 (33) | 366/504 (73) | 138/504 (27) | ||
| 40–49 | 34/45 (76) | 11/45 (24) | 25/34 (74) | 9/34 (26) | ||
| Maternal education | <0.001 | <0.001 | ||||
| < High school | 605/1,062 (57) | 457/1,062 (43) | 310/597 (52) | 287/597 (48) | ||
| High school or GED | 832/1,288 (65) | 456/1288 (35) | 470/821 (57) | 351/821(43) | ||
| >High school | 607/765 (79) | 158/765(21) | 422/597 (71) | 175/597(29) | ||
| Maternal race/ethnicity | <0.001 | 0.03 | ||||
| Non-Hispanic white | 1,039/1,672 (62) | 633/1,672 (38) | 636/1,022 (62) | 386/1,022 (38) | ||
| Non-Hispanic black | 1,157/1,780 (65) | 623/1,780 (35) | 676/1,144 (59) | 468/1,144 (41) | ||
| Hispanic | 322/447 (72) | 125/447 (28) | 178/321 (55) | 143/321(45) | ||
| Other | 151/198 (76) | 47/198 (24) | 94/146 (64) | 52/146 (36) | ||
| Postpartum smoking | <0.001 | <0.001 | ||||
| Smoker | 299/641 (47) | 342/641 (53) | 145/299 (48) | 154/299 (51) | ||
| Non-smoker | 2,370/3,456 (69) | 1,086/3,456 (37) | 1,439/2,334 (62) | 895/2,334 (38) | ||
| Pregnancy interval | <0.001 | 0.02 | ||||
| Primiparous | 1,235/1,818 (68) | 583/1,818 (32) | 693/1,212 (57) | 519/1,212(43) | ||
| Prior pregnancy <18 months | 359/584 (61) | 225/584 (39) | 212/355 (60) | 143/355(40) | ||
| Prior pregnancy ≥18 months | 1,014/1,590 (64) | 576/1,590 (36) | 637/1,005 (63) | 368/1,005 (37) | ||
| Gestational age | 0.50 | 0.88 | ||||
| <37 weeks | 177/296 (60) | 119/296 (40) | 103/175 (59) | 72/175 (41) | ||
| ≥37 weeks | 2,492/3,801 (66) | 1,309/3,801 (34) | 1,481/2,458 (60) | 977/2,458 (40) | ||
| City | <0.001 | <0.001 | ||||
| ≤ 100%, not high-risk | 353/535(66) | 182/535 (34) | 205/344 (60) | 139/344 (40) | ||
| ≤ 100%, high-risk | 556/921 (60) | 365/921 (40) | 320/550 (58) | 230/550 (42) | ||
| >100%, high-risk | 952/1,460 (65) | 508/1,460 (35) | 544/944 (58) | 400/944 (42) | ||
| >100%, not high-risk | 603/1,487 (41) | 281/1,487(59) | 401/594 (68) | 193/594 (32) | ||