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Time-to-death and predictors of mortality among preterm neonates diagnosed with neonatal sepsis, Southwest Ethiopia, 2022: prospective follow-up study Cover

Time-to-death and predictors of mortality among preterm neonates diagnosed with neonatal sepsis, Southwest Ethiopia, 2022: prospective follow-up study

Open Access
|Jan 2026

Figures & Tables

Figure 1.

Treatment outcome among preterm neonates diagnosed with neonatal sepsis admitted in the NICU of Government Hospitals in Southwest Ethiopia from March 2021 to January 30, 2022 (N = 354).
Note: NICU, neonatal intensive care unit.
Treatment outcome among preterm neonates diagnosed with neonatal sepsis admitted in the NICU of Government Hospitals in Southwest Ethiopia from March 2021 to January 30, 2022 (N = 354). Note: NICU, neonatal intensive care unit.

Figure 2.

Kaplan–Meier survival estimate graph overall median survival time among preterm neonates diagnosed with sepsis admitted to Government Hospitals in Ethiopia, 2022 (N = 354).
Kaplan–Meier survival estimate graph overall median survival time among preterm neonates diagnosed with sepsis admitted to Government Hospitals in Ethiopia, 2022 (N = 354).

Figure 3.

Cox-Snell residual, Nelson-Aalen cumulative hazard graph among preterm neonates diagnosed with sepsis and admitted to Government Hospitals in Southwest Ethiopia, 2022 (N = 354).
Cox-Snell residual, Nelson-Aalen cumulative hazard graph among preterm neonates diagnosed with sepsis and admitted to Government Hospitals in Southwest Ethiopia, 2022 (N = 354).

Sociodemographic characteristics of preterm neonates diagnosed with neonatal sepsis admitted in NICU ward of Government Hospitals in Southwest Ethiopia, from March 2021 to January 30, 2022 (N = 354), N (%)_

Variables and categoryTotalOutcome status
CensoredDeath
Age (days)
  ≤7345 (97.46)224 (64.93)121 (35.07)
  8–289 (2.54)9 (100.0)-
Gender
  Female176 (49.72)122 (69.32)54 (30.68)
  Male178 (50.28)111 (62.36)67 (37.64)
Maternal age (years)
  <2022 (6.21)12 (54.55)10 (45.45)
  20–35306 (86.44)204 (66.67)102 (33.33)
  ≥3526 (7.34)17 (65.38)9 (34.62)
Residency of mothers
  Urban109 (30.79)81 (74.31)28 (25.69)
  Rural245 (69.21)152 (62.04)93 (37.96)

Neonatal-related characteristics of preterm neonates diagnosed with neonatal sepsis admitted in the NICU of Government Hospitals in Southwest Ethiopia from March 2021 to January 30, 2022 (N = 354), N (%)_

Characteristics and categoryTotalOutcome status
CensoredDeath
Where delivery was conducted
  Health institution340 (96.05)225 (66.18)115 (33.82)
  Home14 (3.95)8 (57.14)6 (42.86)
Neonatal Wight (g)
  <2500303 (85.59)189 (62.38)114 (37.62)
  ≥250051 (14.41)44 (86.27)7 (13.73)
GA (weeks)
  28–3151 (14.41)24 (47.06)27 (52.94)
  32–36303 (85.59)209 (68.98)94 (31.02)
First minute APGAR score
  <7238 (67.23)142 (59.66)96 (40.34)
  ≥7116 (32.77)91 (78.45)25 (21.55)
5th minute APGAR
  <7122 (34.46)53 (43.44)69 (56.56)
  ≥7232 (65.54)180 (77.5)62 (22.41)
Application of KMC
  Yes154 (72.73)112 (72.73)42 (27.27)
  No200 (56.50)121 (60.50)79 (39.50)
Weight for GA
  LGA17 (4.8)13 (76.47)4 (23.53)
  AGA271 (76.55)193 (71.22)78 (28.78)
  SGA66 (18.64)27 (40.91)39 (59.09)
Breathing status at birth
  Didn’t cry113 (31.92)36 (31.86)77 (68.14)
  Cry241 (68.08)197 (81.74)44 (18.26)

Medical/surgical comorbidity characteristics of preterm neonates diagnosed with neonatal sepsis admitted in the NICU ward of Government Hospitals in Southwest Ethiopia from March 2021 to January 30, 2022 (N = 354), N (%)_

Variables and categoryTotalOutcome status
AliveDeath
RDS
  No238 (67.23)170 (71.43)68 (28.57)
  Yes116 (32.77)63 (54.31)53 (45.69)
Jaundice
  No313 (88.42)202 (64.54)111 (35.46)
  Yes41 (11.58)31 (75.61)10 (24.39)
Anomaly
  No342 (96.61)224 (65.50)118 (34.50)
  Yes12 (3.39)9 (75.00)3 (25.00)
Hypoglycemia
  No262 (74.01)187 (71.37)75 (28.63)
  Yes92 (25.99)46 (50)46 (50)
Hypothermia
  No190 (53.67)143 (75.26)47 (24.74)
  Yes164 (46.33)90 (54.88)74 (45.12)
Asphyxia
  No312 (88.14)208 (66.67)104 (33.33)
  Yes42 (11.86)25 (59.52)17 (40.48)

Maternal medical and obstetrics-related characteristics of preterm neonates diagnosed with neonatal sepsis admitted in the NICU of Government Hospitals, in Southwest Ethiopia from March 2021 to January 30, 2022 (N = 354), N (%)_

Characteristics and categoryTotalOutcome status
Censored N (%)Death N (%)
Chronic medical disease
  No339 (95.76)218 (67.26)111 (32.74)
  Yes15 (4.24)5 (33.33)10 (66.67)
Antenatal care
  No23 (6.5)11 (47.83)12 (52.17)
  Yes331 (93.5)222 (67.07)109 (32.93)
Obstetric complications
  No312 (88.14)199 (63.78)113 (36.22)
  Yes42 (11.86)34 (80.95)8 (19.05)
Mode of delivery
  C/S73 (20.62)57 (78.08)16 (21.92)
  Vaginal281 (79.38)176 (62.63)105 (37.37)
Pregnancy type
  Single269 (75.99)188 (69.8)81 (30.11)
  Multiple85 (24.01)45 (52.94)40 (47.06)
Febrile illness of the mother
  No335 (94.63)221 (65.97)114 (34.03)
  Yes19 (5.37)12 (63.16)7 (36.84)
Presentation
  Cephalic440 (96.05)224 (65.88)116 (34.12)
  Non-cephalic14 (3.95)9 (64.29)5 (35.71)
Parity
  Para I166 (46.89)113 (68.07)53 (31.93)
  Multi-para188 (53.11)120 (63.83)68 (36.17)

Bivariate and multivariate result of preterm neonates diagnosed with neonatal sepsis, admitted in the NICU of Governmental Hospitals, in Southwest Ethiopia from March 2021 to January 30, 2022 (N = 354)_

Variables and categoryOutcome statusCHR (95% Cl)AHR (95%CI)P-value
AliveDeath
Gender
  Female1225411
  Male111571.38 (0.96–1.93)1.38 (0.94–2.02)0.098
Residency
  Urban812811
  Rural152931.48 (0.99–2.22)1.44 (0.89–2.33)0.132
Antenatal care
  Yes22210911
  No11122.06 (1.13–3.80)2.5 (1.3–4.84)0.005*
Pregnancy complication
  No19911311
  Yes3482.43 (1.27–4.65)0.55 (0.22–1.39)0.209
Respiratory distress
  No1706811
  Yes63531.57 (1.06–2.23)1.50 (1.13–2.31)0.045*
Jaundice
  No20211111
  Yes31103.08 (2.18–4.38)1.89 (1.26–2.84)0.002*
Application of KMC
Yes1124211
  No121791.66 (1.15–2.40)0.97 (0.64–1.47)0.891
Mode of delivery
  C/S571611
  Vaginal1761050.54 (0.32–0.92)0.56 (0.32–0.99)0.075
Breathing status
  Cried1974411
  Didn’t cry36774.12 (2.88–5.90)2.9 (1.88–4.51)0.09
Parity
  Para I1135311
  Multi-para120681.40 (0.98–2.02)1.75 (1.19–2.58)0.075
Weight (g)
  ≥250018911411
  <25004472.76 (1.29–5.94)1.93 (0.83–4.47)0.125
Hypoglycemia
  No1877511
  Yes46461.78 (1.24–2.55)1.54 (0.97–2.45)0.064
Hypothermia
  No1434711
  Yes90741.89 (1.32–2.67)1.35 (0.86–2.12)0.194
GA (weeks)
  >32242711
  <32209940.60 (0.40–0.91)0.84 (0.52–1.37)0.494
WFGA
  AGA1937811
  LGA1340.92 (0.34–2.51)0.94 (0.32–2.79)0.916
  SGA27392.03 (1.3–2.96)1.24 (0.81–1.94)0.338
Pregnancy types
  Single tone1888111
  Multiple45401.37 (0.94–1.99)1.08 (0.71–1.65)0.721
APGAR 1st min.
  <7142960.56 (0.36–0.85)0.69 (0.39–1.24)0.216
  ≥7912511
APGAR 5th min
  <753692.7 (1.91–3.93)2.11 (1.29–3.46)0.015*
  ≥71805211
DOI: https://doi.org/10.2478/fon-2025-0053 | Journal eISSN: 2544-8994 | Journal ISSN: 2097-5368
Language: English
Page range: 477 - 488
Submitted on: Feb 8, 2024
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Accepted on: Aug 25, 2024
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Published on: Jan 27, 2026
In partnership with: Paradigm Publishing Services
Publication frequency: 4 issues per year

© 2026 Belete Fenta Kebede, Tsegaw Biyazin Tesfa, Aynalem Yetwale Hiwot, Yalemtsehay Dagnaw Genie, Emebet Adugnaw Alem, published by Shanxi Medical Periodical Press
This work is licensed under the Creative Commons Attribution 4.0 License.