Table 1

Demographic characteristics of 187 preterm and term neonates.

Variables/Categories
n (%)

Gender (boys/Girls)
114 (61)/73 (39)
Gestational age (wks), median (range)
34 (23–42)
     < 28
17 (9.1)
     28–32
49 (26.2)
     33–36
58 (31)
     ≥37
63 (33.7)
Birth Weight (g), median (range)
1968 (454–4132)
     < 1000
27 (14.4)
     1000–1499
31 (16.6)
     1500–1999
38 (20.3)
     ≥2000
91 (48.7)
Apgar score 1 min/5 min, median (range)
8 (0–10)/9 (2–10)
Age at hospitalization (day), median (range)
0 (0–9)
Hospitalization (day), median (range)
32 (5–182)
Caesarian Section
96 (51.3)
Multiple gestation
4 (2.3)
Intubation
111(59.4)
Oxygenation
72 (38.5)
Birth asphyxia
27 (14.4)
Intrauterine growth retardation
23 (12.3)
Respiratory distress syndrome
31 (16.6)
Transient tachypnea of the newborn
38 (20.3)

Data are expressed as mean ± SD or n (%).

Begum et al. Journal of Circadian Rhythms 2006 4:11   doi:10.1186/1740-3391-4-11