From: The effects of position on gastric residual volume of premature infants in NICU
Groups Quantitative variables | Group one Mean (standard deviation) | Group two Mean (standard deviation) | Group three Mean (standard deviation) | Total Mean (standard deviation) | Statistical test | |
---|---|---|---|---|---|---|
Age (day) | 6.13 (4.15) | 4.69 (3.90) | 6.09 (3.82) | 5.63 (3.99) | ×2 = 7.36* P = 0.025** | |
Pregnancy age (week) | 31.67 (2.26) | 32.64 (2.24) | 31.8 (2.45) | 32.08 (2.34) | ×2 = 4.65* P = 0.097 | |
Infant’s weight (gr.) | 1664.44 (537.10) | 1954.22 (573.23) | 1633.33 (432.36) | 1750.67 (533.89) | ×2 = 8.96* P = 0.011** | |
Groups Qualitative variables | Group one Mean (standard deviation) | Group two Mean (standard deviation) | Group three Mean (standard deviation) | Total Mean (standard deviation) | Statistical test | |
Apgar score | 7 | 13 (28.9) | 24.4))11 | 17.8))8 | 23.7))32 | =6.164 P = 0.405 |
8 | 20 (44.4) | 33.3))15 | 53.3))24 | 43.7))59 | ||
9 | (22.29)10 | 28.9))13 | 22.2))10 | 24.4))33 | ||
10 | 4.4))2 | 13.3))6 | 6.7))3 | 8.1))11 | ||
Total | (100)45 | (100)45 | 100))45 | 100))135 | ||
Gender | Boy | 35.6))16 | 75.6))34 | 64.4))29 | 58.5))79 | P < 0.001** |
Girl | 64.4))29 | 24.4))11 | 16.6))16 | 41.5))56 | ||
Cause of hospitalization | Prematurity | 24.4))11 | 57.8))26 | 37.8))17 | 40))54 | =14.4 P = 0.025** |
Respiratory failure | 60))27 | 22.2))10 | 42.2))19 | 41.5))56 | ||
Multiple pregnancy | 6.7))3 | 8.9))4 | 8.9))4 | 8.1))11 | ||
Sepsis | 4 (9.8) | 11.1))5 | 11.1))5 | 10.4))14 | ||
Delivery | Natural delivery | 20))9 | 2.2))1 | 8.9))4 | 10.4))14 | 7.81= P = 0.02** |
Caesarian section | 80))36 | 97.8))44 | 91.1))41 | 89.6))121 |