Table 3 Comparison of the in-hospital nutritional status of infants between the groups
|  | Non-PNAC (n = 384) | PNAC (n = 81) | Z/T/χ 2 | P |
|---|---|---|---|---|
Amino acid dose initiation (g/kg/day) (mean, IQR) | 1.9(1.1,2.1) | 1.5(1.,4, 1.9) | -1.935 | 0.053 |
Amino acids dose up to 3.0Â g/kg/d (days)(mean, IQR) | 4.0(3.0,5.0) | 4.0(3.0,5.0) | -0.001 | 1.000 |
Maximum dose of amino acids (g/kg/day) (mean, IQR) | 3.5(3.2,3.7) | 4.0(3.5,4.0) | -7.331 | <0.001 |
SMOF (n, %) | 202(52.6) | 32(39.5) | 4.590 | 0.032 |
Medium/long-chain fat emulsion (n, %) | 182(47.4) | 49(60.5) | 4.590 | 0.032 |
Fat emulsion dose initiation (g/kg/day) (mean, IQR) | 1.0(1.0,1.5) | 1.0(1.0,1.0) | -0.346 | 0.729 |
Fat emulsion dose up to 3.0Â g/kg/d (days)(mean, IQR) | 5.0(4.0,7.0) | 5.0(4.0,7.0) | -1.648 | 0.099 |
Maximum dose of fat emulsion (g/kg/day) (mean, IQR) | 3.0(3.0,3.0) | 3.0(3.0,3.4) | -2.836 | 0.005 |
Days of parenteral nutrition (days)(mean, IQR) | 25.0(18.0,32.0) | 34.0(24.0,43.5) | -5.905 | <0.001 |
Time to initiate enteral feeding (hours) (mean, IQR) | 24.0(16.0,41.0) | 24.0(18.0,42.8) | -1.793 | 0.073 |
Breast feeding (n, %) | 209(54.4) | 22(27.2) | 19.893 | <0.001 |
FI (n, %) | 140(36.5) | 56(69.1) | 29.293 | <0.001 |
Time to reach total enteral nutrition (days)(mean, IQR) | 26.0(19.0,34.0) | 35.0(24.0,44.8) | -4.169 | <0.001 |
Total calories up to 110Â kcal/kg/day (days)(mean, IQR) | 12.0(8.0,18.0) | 9.5(6.8,16.0) | -2.322 | 0.020 |
Days to regain birth weight (days) (mean, IQR) | 10.0(8.0,12.0) | 10.0(8.0,11.5) | -0.611 | 0.541 |
Average velocity of weight growth (g/kg/day) (mean, IQR) | 15.2(13.6,17.2) | 13.7(12.8,15.5) | -3.322 | 0.001 |