TABLE 1

Baseline Profile of Patients Presenting With First FS (n = 1022)

Patient CharacteristicAll Cases (n = 1022)NVP-FS (n = 955)VP-FS (n = 67)Pa
Male sex, n (%)545 (53.3)516 (54.0)29 (43.3).09
Age, median (IQR), mo19.8 (13.6–27.6)20.3 (14.2–28.1)13.0 (12.4–17.6)<.001
 <12, n (%)164 (16.0)151 (15.8)13 (19.4)
 12–24, n (%)505 (49.4)455 (47.6)50 (74.6)
 24–36, n (%)214 (20.9)213 (22.3)1 (1.5)
 ≥36, n (%)139 (13.6)136 (14.2)3 (4.5)
Indigenous, n (%)25 (2.4)25 (2.6)0 (0.0).40
Country of birth, n (%)
 Australia929 (90.9)865 (90.6)64 (95.5).38
 Other40 (3.9)39 (4.1)1 (1.5)
 Unknown53 (5.2)51 (5.3)2 (3.0)
Birth weight, n (%), g
 <150010 (1.0)10 (1.0)0 (0.0).11
 1500–250042 (4.1)39 (4.1)3 (4.5)
 2500–4000737 (72.1)683 (71.5)54 (80.6)
 >400098 (9.6)90 (9.4)8 (11.9)
 Unknown135 (13.2)133 (13.9)2 (3.0)
Gestation, n (%), wk
 <285 (0.5)5 (0.5)0 (0.0).24
 28–314 (0.4)4 (0.4)0 (0.0)
 32–3672 (7.0)70 (7.3)2 (3.0)
 >36880 (86.1)816 (85.4)64 (95.5)
 Unknown61 (6.0)60 (6.3)1 (1.5)
Past medical history, n (%)
 Meningitis and/or encephalitis (resolved)10 (1.0)10 (1.0)0 (0.0).99
 Chronic medical conditions115 (11.3)107 (11.2)8 (11.9).84
Family history, n (%)
 FSs382 (37.4)353 (37.2)29 (43.3).30
 Epilepsy171 (16.7)164 (17.2)7 (10.4).18
  • Indigenous represents aboriginal and/or Torres Strait Islanders. —, not applicable.

  • a χ2 or Fisher’s exact test for categorical values and Mann-Whitney U test for nonparametric continuous values; unknown categories were not included in the statistical analyses.