Table 2.
The association of characteristics with concentration of breast milk macronurtrients among lactating women in south-central China
| Characteristic | Protein(g/100 ml) | Fat(g/100 ml) | Lactose(g/100 ml) | Total dry matter(g/100 ml) | Energy(g/100Kal) | ||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| mean (SD) | F | df | P | mean (SD) | F | df | P | Mean (SD) | F | df | P | Mean (SD) | F | df | P | Mean (SD) | F | df | P | ||||||
| v1 | v2 | v1 | v2 | v1 | v2 | v1 | v2 | v1 | v2 | ||||||||||||||||
| Lactation period | |||||||||||||||||||||||||
| 7 and below days | 2.15(0.86) | 25.8 | 5 | 214 | < 0.001 | 2.60(0.95) | 3.06 | 5 | 214 | 0.01 | 6.09(0.49) | 10.81 | 5 | 214 | < 0.001 | 11.93(1.10) | 7.42 | 5 | 214 | < 0.001 | 58.87(8.92) | 3.49 | 5 | 214 | 0.01 |
| 8 to 15 days | 1.66(0.85) | 3.90(1.21) | 6.48(0.32) | 13.04(0.92) | 68.22(13.41) | ||||||||||||||||||||
| 16 to 30 days | 1.71(0.83) | 3.35(1.29) | 6.55(0.25) | 12.57(1.11) | 67.15(9.23) | ||||||||||||||||||||
| 31 to 90 days | 1.17(0.22) | 3.22(1.22) | 6.56(0.31) | 11.84(1.35) | 62.00(11.46) | ||||||||||||||||||||
| 91 to 180 days | 0.95(0.15) | 3.13(1.50) | 6.64(0.25) | 11.55(1.54) | 60.25(13.80) | ||||||||||||||||||||
| 181 ~ days | 0.91(0.17) | 3.05(1.79) | 6.64(0.45) | 11.4(1.90) | 59.43(16.65) | ||||||||||||||||||||
| Age | |||||||||||||||||||||||||
| 25 and below years | 1.31(0.69) | 0.46 | 2 | 217 | 0.63 | 3.06(1.48) | 0.68 | 2 | 217 | 0.51 | 6.50(0.43) | 0.39 | 2 | 217 | 0.68 | 11.78(1.64) | 1.48 | 2 | 217 | 0.23 | 60.27(14.73) | 1.9 | 2 | 217 | 0.15 |
| 26 to 30 years | 1.4(0.69) | 3.3(1.42) | 6.50(0.38) | 12.13(1.43) | 63.86(12.43) | ||||||||||||||||||||
| 31 ~ years | 1.43(0.93) | 3.27(1.31) | 6.56(0.37) | 12.17(1.40) | 63.78(11.60) | ||||||||||||||||||||
| Parity | |||||||||||||||||||||||||
| Primipara | 1.39(0.74) | 0.7 | 1 | 218 | 0.4 | 3.24(1.44) | 0.32 | 1 | 218 | 0.57 | 6.49(0.41) | 2.75 | 1 | 218 | 0.1 | 12.05(1.53) | 0.55 | 1 | 218 | 0.46 | 62.63(13.54) | 0.1 | 1 | 218 | 0.75 |
| Multipara | 1.29(0.70) | 3.1(1.38) | 6.60(0.33) | 11.86(1.46) | 61.93(12.59) | ||||||||||||||||||||
| Delivery mode | |||||||||||||||||||||||||
| Natural | 1.31(0.54) | 0.18 | 2 | 217 | 0.83 | 3.18(1.44) | 1.52 | 2 | 217 | 0.22 | 6.48(0.46) | 0.78 | 2 | 217 | 0.46 | 11.88(1.60) | 1.91 | 2 | 217 | 0.15 | 60.99(14.50) | 2.18 | 2 | 217 | 0.12 |
| Forceps | 1.42(0.24) | 4.22(0.88) | 6.40(0.44) | 13.10(0.87) | 72.00(7.92) | ||||||||||||||||||||
| Cesarean | 1.36(0.77) | 3.21(1.43) | 6.53(0.35) | 12.03(1.45) | 62.94(12.42) | ||||||||||||||||||||
| Education | |||||||||||||||||||||||||
| Junior or below | 1.2(0.45) | 3.14 | 2 | 217 | 0.04 | 3.14(1.57) | 0.15 | 2 | 217 | 0.86 | 6.58(0.33) | 0.86 | 2 | 217 | 0.42 | 11.79(1.62) | 0.68 | 2 | 217 | 0.51 | 61.54(14.17) | 0.26 | 2 | 217 | 0.77 |
| Senior | 1.33(0.66) | 3.26(1.42) | 6.49(0.43) | 12.01(1.54) | 63.17(13.03) | ||||||||||||||||||||
| College or above | 1.51(0.90) | 3.17(1.37) | 6.49(0.40) | 12.11(1.43) | 62.13(13.25) | ||||||||||||||||||||
| Occupation | |||||||||||||||||||||||||
| Housework | 1.27(0.58) | 7.28 | 1 | 218 | 0.01 | 3.21(1.42) | 0.01 | 1 | 218 | 0.92 | 6.53(0.39) | 0.79 | 1 | 218 | 0.37 | 11.91(1.53) | 1.29 | 1 | 218 | 0.26 | 61.58(13.62) | 1.55 | 1 | 218 | 0.21 |
| Others | 1.54(0.92) | 3.19(1.46) | 6.48(0.42) | 12.15(1.49) | 63.90(12.73) | ||||||||||||||||||||
| Family economic level | |||||||||||||||||||||||||
| Low | 1.26(0.52) | 1.57 | 2 | 217 | 0.21 | 2.96(1.30) | 1.98 | 2 | 217 | 0.14 | 6.52(0.44) | 1.02 | 2 | 217 | 0.362 | 11.62(1.45) | 4.45 | 2 | 217 | 0.01 | 59.64(11.87) | 4.17 | 2 | 217 | 0.02 |
| Middle | 1.44(0.88) | 3.38(1.48) | 6.53(0.35) | 12.27(1.49) | 65.11(12.95) | ||||||||||||||||||||
| High | 1.44(0.67) | 3.25(1.51) | 6.43(0.44) | 12.08(1.57) | 61.01(16.08) | ||||||||||||||||||||
The significant test values of ANOVA will expressed by Fα,(ν1,ν2). Fα,(ν1,ν2): α = 0.05, ν1: degrees of freedom for between groups, ν2:Degrees of freedom for within group