| | | Alzahra Hospital (follow-up care) | Taleqani Hospital (control) | | | Mean | Standard deviation | Median | (95% confidence intervals) | Mean | Standard deviation | Median | (95% confidence intervals) |
| | Head circumference (second week) | 30.6 | 1.5 | 30.0 |
30.2, 31.0 | 32.3 | 2.5 | 32.3 | 31.7, 32.8 () | | Height (2 weeks) (second week) | 42.4 | 2.5 | 42.0 | 41.6, 43.1 | 45.4 | 4.5 | 45.0 | 44.4, 46.7 () | | Weight (2 weeks) (second week) | 1797.0 | 267.0 | 1735.0 | 1717.0, 1876.0 | 2259.0 | 756.0 | 2000.0 | 2084.0, 2435.0 () | | Head circumference (first month) | 31.5 | 1.6 | 31.0 | 31.1, 31.9 | 33.5 | 2.7 | 33.0 | 32.8, 34.2 () | | Height (first month) | 44.4 | 3.1 | 44.0 | 43.7, 45.1 | 46.5 | 5.8 | 46.0 | 45.4, 48.4 | | Weight (first month) | 2122.0 | 429.5 | 1950.0 | 2022.0, 2222.0 | 2655.0 | 1004.0 | 2500.0 | 2400.0, 2910.0 () | | Head circumference (second month) | 33.5 | 2.3 | 34.0 | 32.9, 34.1 | 35.2 | 2.3 | 35.0 | 34.5, 35.8 () | | Height (second month) | 47.8 | 4.2 | 48.0 | 46.8, 48.8 | 48.9 | 5.3 | 48.0 | 47.0, 50.0 | | Weight (second month) | 2911.0 | 873.0 | 2750.0 | 2698.0, 3124.0 | 3200.0 | 965.0 | 3050.0 | 2929.0, 3472.0 | | Head circumference (third month) | 35.7 | 2.8 | 36.0 | 34.8, 36.6 | 37.0 | 2.3 | 37.0 | 36.3, 37.7 | | Height (third month) | 52.9 | 9.1 | 52.0 | 49.9, 55.9 | 52.5 | 5.0 | 52.0 | 50.9, 54.0 | | Weight (third month) | 3979.0 | 1683.0 | 3900.0 | 3417.0, 4540.0 | 4155.0 | 1317.0 | 3990.0 | 3745.0, 4566.0 | | Head circumference (fourth month) | 37.2 | 2.0 | 37.0 | 36.5, 37.9 | 38.8 | 1.8 | 39.0 | 38.0, 39.5 () | | Height (fourth month) | 54.8 | 4.7 | 55.0 | 53.2, 56.4 | 55.9 | 4.8 | 55.0 | 53.9, 57.9 | | Weight (fourth month) | 4428.0 | 1037.0 | 4340.0 | 4077.0, 4778.0 | 5134.0 | 1140.0 | 5000.0 | 4672.0, 5593.0 | | Head circumference (fifth month) | 39.0 | 2.5 | 40.0 | 37.6, 40.4 | 40.3 | 1.8 | 40.0 | 39.2, 41.4 | | Height (fifth month) | 59.2 | 3.5 | 59.0 | 57.3, 61.1 | 57.8 | 6.3 | 57.0 | 53.9, 61.6 | | Weight (fifth month) | 5512.0 | 695.0 | 5500.0 | 5127.0, 5898.0 | 5954.0 | 1534.0 | 6000.0 | 5027.0, 6881.0 | | Head circumference (sixth month) | 41.3 | 2.2 | 41.0 | 40.8, 41.8 | 41.3 | 2.4 | 41.0 | 39.9, 42.6 | | Height (sixth month) | 63.3 | 4.5 | 64.0 | 61.4, 65.2 | 59.5 | 3.4 | 60.0 | 57.6, 61.4 () | | Weight (sixth month) | 6435.0 | 1250.0 | 6575.0 | 5963.0, 6907.0 | 6033.0 | 879.0 | 6000.0 | 5546.0, 6520.0 |
| | Change between second week and sixth month | | Head circumference | 10.7 | | 11.0 | | 9.0 | | 8.7 | | | Height | 21.0 | | 22.0 | | 14.1 | | 15.0 | () | | Weight | 4638.0 | | 4840.0 | | 3774.0 | | 4000.0 | |
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