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Table 1 Demographics of infants included in the analysis (N = 333)

From: Dynamics of toxigenic Clostridium perfringens colonisation in a cohort of prematurely born neonatal infants

DemographicsNumber
Gestation
 Mean gestation at birth in days (SD)197 (16)
 Median gestation at birth in days (IQR)198 (27)
Birth weight
 Mean birth weight in g (SD)1079.5 (340.8)
 Median birth weight in g (IQR)1025 (525)
Gender
 Female (%)155 (46.5%)
 Male (%)178 (54.5%)
Ethnicity
 White (%)130 (39.0%)
 Mixed (%)44 (13.2%)
 Asian (%)58 (17.4%)
 Black (%)74 (22.2%)
 Unknown (%)12 (3.6%)
 Other (%)15 (4.5%)
Mode of delivery
 Vaginal delivery (%)137 (41.1%)
 C-section (%)196 (58.9%)
Ventilation
 Mean number of days requiring mechanical ventilation prior to CPC or LS (SD)3.1 (8.2)
 Median number of days requiring mechanical ventilation prior to CPC or LS (IQR)1 (2)
 Mean number of days CPAP (air) prior to CPC or LS (SD)7.0 (8.7)
 Median number of days CPAP (air) prior to CPC or LS (IQR)4 (10)
 Mean number of days CPAP (oxygen) prior to CPC or LS (SD)9.3 (14.8)
 Median number of days CPAP (oxygen) prior to CPC or LS (IQR)2 (12)
Feeding
 Mean number of days of donor breast milk prior to CPC or LS (SD)8.3 (8.9)
 Median number of days of donor breast milk prior to CPC or LS (IQR)6 (8)
 Mean number of days of maternal breast milk prior to CPC or LS (SD)23.0 (22.2)
 Median number of days of maternal breast milk prior to CPC or LS (IQR)17 (25)
 Mean number of days of formula prior to CPC or LS (SD)3.3 (9.0)
 Median number of days of formula prior to CPC or LS (IQR)0 (2)
 Mean number of days of breast feeding prior to CPC or LS (SD)3.4 (7.4)
 Median number of days of breast feeding prior to CPC or LS (IQR)0 (3)
Antibiotic use
 Mean number of days of antibiotic use at birth (SD)2.4 (2.1)
 Median number of days of antibiotic use at birth (IQR)2 (2)
 Mean number of days of antibiotic use prior to CPC or LS (SD)5.1 (7.4)
 Median number of days of antibiotic use prior to CPC or LS (IQR)3 (4)
C. perfringens colonisation
 Number colonised with C. perfringens (%)98 (29.4%)
 Mean number of days prior to CPC (SD)27.1 (23.3)
 Median number of days prior to CPC (IQR)21 (26)
  1. Abbreviations: CPC C. perfringens colonisation, LS Last sample, CPAP, Continuous positive airway pressure, SD Standard deviation, IQR Interquartile range