Table 7.
Univariate regression analysis of associated factors which influenced the length of hospital stay and the PMA at discharge.
| Item | Length of Hospital Stay (Days) | PMA at Discharge (Weeks) | ||||||
|---|---|---|---|---|---|---|---|---|
| Regression Coefficient | Lower 95% CI | Upper 95% CI | p Value | Regression Coefficient | Lower 95% CI | Upper 95% CI | p Value | |
| Room air-HFNC @ | −18.033 | −29.616 | −6.451 | 0.003 * | −3.044 | −4.234 | −1.853 | <0.001 * |
| GA | −6.911 | −9.298 | −4.524 | <0.001 * | −0.595 | −0.866 | −0.324 | <0.001 * |
| BBW | −0.039 | −0.058 | −0.021 | <0.001 * | −0.005 | −0.007 | −0.003 | <0.001 * |
| Female-Male ! | 1.929 | −9.484 | 13.343 | 0.739 | −0.216 | −1.454 | 1.022 | 0.731 |
| C/S-VD # | −6.329 | −17.823 | 5.204 | 0.279 | −0.006 | −1.263 | 1.251 | 0.992 |
| NTISS | 1.409 | 0.672 | 2.146 | <0.001 * | 0.035 | −0.049 | 0.119 | 0.418 |
| 1′ Apgar score | −4.976 | −7.940 | −2.011 | 0.001 * | −0.603 | −0.921 | −0.284 | <0.001 * |
| 5′ Apgar score | −3.811 | −6.606 | −1.016 | 0.008 * | −0.479 | −0.779 | −0.179 | 0.002 * |
| RDS grade | 10.305 | 2.335 | 18.274 | 0.012 * | 1.135 | 0.271 | 1.999 | 0.010 * |
| Surfactant usage | 11.148 | −0.246 | 22.541 | 0.055 | 1.097 | −0.142 | 2.337 | 0.082 |
| Intubation after birth | 32.621 | 21.886 | 43.356 | <0.001 * | 1.251 | −0.046 | 2.549 | 0.059 |
| Apnea medicine | ||||||||
| Used-not used $ | −7.408 | −24.898 | 10.083 | 0.404 | −0.639 | −2.539 | 1.259 | 0.506 |
| Caffeine- Theophylline ^ |
−0.805 | −14.741 | 13.132 | 0.909 | 1.625 | 0.128 | 3.123 | 0.034 * |
| pRBC transfusion | 1.179 | −11.448 | 13.806 | 0.854 | 0.809 | −0.554 | 2.173 | 0.242 |
| PDA | 0.554 | −0.715 | 1.824 | 0.389 | ||||
| Without Tx | −5.501 | −19.652 | 8.651 | 0.443 | ||||
| Conservative Tx | −6.174 | −17.710 | 5.361 | 0.292 | −0.759 | −2.292 | 0.774 | 0.329 |
| BPD ≥ moderate | 6.599 | −5.078 | 18.278 | 0.266 | 0.710 | −0.541 | 1.961 | 0.264 |
| IVH ≥ grade III | −12.484 | −39.887 | 14.919 | 0.369 | ||||
| Late-onset sepsis | 0.967 | −0.835 | 2.769 | 0.291 | ||||
| B/C proved | −8.454 | −25.067 | 8.159 | 0.316 | −0.337 | −1.973 | 1.299 | 0.684 |
| Clinical diagnosis | 1.909 | −13.173 | 16.991 | 0.803 | 0.229 | −1.468 | 1.926 | 0.789 |
| Hypotension | −14.411 | −29.857 | 1.036 | 0.067 | −0.154 | −3.137 | 2.827 | 0.919 |
| ROP ≥ stage III | 19.173 | 5.174 | 33.172 | 0.008 * | 2.706 | 1.217 | 4.195 | <0.001 * |
| NEC ≥ stage II | −22.763 | −69.476 | 23.949 | 0.337 | −2.163 | −7.236 | 2.909 | 0.400 |
* p value < 0.05; @ Compared room air group to HFNC group; ! compared female to male; # compared C/S to VD; $ compared used to not used; ^ compared Caffeine to Theophylline; NCPAP, nasal continuous positive airway pressure; HFNC, high-flow nasal cannula; CI, confidence interval; VD, vaginal delivery; C/S, cesarean section; Tx, treatment; GA, gestational age; BBW, birth body weight; RDS, respiratory distress syndrome; NTISS, Neonatal Therapeutic Intervention Scoring System; pRBC, packed red blood cell; BPD, bronchopulmonary dysplasia; PDA, patent ductus arteriosus; IVH, intraventricular hemorrhage; ROP, retinopathy of prematurity; NEC, necrotizing enterocolitis.