Table 8. Mean cost per adverse drug reaction (ADR) treatment in 2007 naira.

Parameters	Moderate (n = 5)	Severe (n = 7)	P-value
Hospital expenditure (Government perspective)	₦ 15,317.32 ± ₦ 1,882.61	₦ 71,893.53 ± ₦ 16,520.10	< 0.001
Parents’ expenditure (Patients’ perspective)	₦ 21,246.00 ± ₦ 1,786.00	₦ 162,713.00 ± ₦ 32,422.00	< 0.001
Total cost of treatment (Society's perspective)	₦ 36,563.32 ± ₦ 3,668.61 (USD 309.86 ± 31.09)	₦ 234,606.00 ± ₦ 48,942.10 (USD 1,988.19 ± 414.76)	< 0.001

n = number of patients with ADRs; ₦ = in 2007 naira (Nigerian currency); USD = United States dollar.