Behavioural Outcome in Children with Congenital Adrenal Hyperplasia: Experience of a Single Centre

Table 2

Sociodemographic characteristics of study sample.

Variable	𝑁	Case	Control	Mean difference (95% CI)	𝑡 statistic^a (df)	𝜒^2 statistic^b (df)	𝑃 value^d
Mean age at study entry in years^a (SD)
Case	49	11.8 (3.8)	—	0.7 (0.8–2.2)	0.871 (89)	—	0.386
Control	42	—	12.5 (3.6)
Gender^b frequency (%)
Male	37	20 (54)	17 (46)	—	—	0.00 (1)	0.974
Female	54	29 (54)	25 (46)
Ethnicity^b frequency (%)
Malay	69	38 (55)	31 (45)	—	—	0.71 (1)	0.678
Others	22	11 (50)	11 (50)
Mean family income in RM^a (SD)
Case	49	4383.7 (3287.6)	—	−138.4 (−1444.6, 1169.7)	−210 (89)		0.834
Control	42	—	4245.2 (2936.5)
Parental marital status^c Frequency (%)
Married	86	45 (52)	41 (48)		—	—	0.369
Single	5	4 (80)	1 (20)

aIndependent 𝑡-test.
^b𝜒² test for independence.
^cFisher’s exact test.
^dSignificant 𝑃 value <0.05.
SD: standard deviation; CI: confidence interval; RM: Ringgit Malaysia.