Skip to main content
. Author manuscript; available in PMC: 2016 Dec 28.
Published in final edited form as: Ann Intern Med. 2015 Nov 24;163(12):889–898. doi: 10.7326/M15-0807

Appendix Table 4.

Distribution of 959 SWIFT Participants Among Lactation Intensity Groups at 6 to 9 wk After Delivery and Lactation Duration Groups at the End of Follow-up*

Lactation Intensity Groups at
6 to 9 wk After Delivery (Baseline)
Lactation Duration Groups
0–2 mo >2–5 mo >5–10 mo >10 mo Total
Exclusive lactation 2 (0.2) 20 (2.1) 45 (4.7) 138 (14.4) 205 (21.4)
Mostly lactation (≤6 oz of formula per day) 5 (0.5) 73 (7.6) 116 (12.1) 193 (20.1) 387 (40.3)
Mostly formula feeding (>17 oz of formula per day) and mixed/inconsistent lactation 29 (3.0) 97 (10.1) 47 (4.9) 41 (4.3) 214 (22.3)
Exclusive formula feeding 153 (16.0) 0 (0) 0 (0) 0 (0) 153 (16.0)
Overall total 189 (19.7) 190 (19.8) 208 (21.7) 372 (38.8) 959 (100)

SWIFT = Study of Women, Infant Feeding, and Type 2 Diabetes After GDM Pregnancy.

*

P < 0.001. Values are numbers (percentages).