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Breastfeeding duration by data set.
| Data set | Mean number of months (standard deviation) |
|---|---|
| A (Rural Plains) | 10.5 (4.5) |
| B (Rural Mountains) | 16 (4.4) |
| C (Urban Mountains) | 13.9 (5.2) |
| D (Rural & Urban Plains) | 13.9 (5.5) |
| E (Mountains and Plains) | 12 |
| F (Plains) | 21 (5.6) |
