Table 2.

Studies on congenital hypothyroidism

Diagnosis	Population	Sample size	Age range of presentation	Consanguinity	Genetic Methods for diagnosis	Biochemical methods for Diagnosis	References
Congenital hypothyroidism	Karachi	4 out of 5000	Neonate birth to 1 month	Not mentioned	Not Done	Thyroid function tests through immunoradiometric assay	[33]
Congenital hypothyroidism	Karachi	116 hypothyroid 46 with vitamin B12 deficiency	19 year to 91 year	Not mentioned	Not Done	Thyroid function tests	[34]
Congenital hypothyroidism	Karachi	80 hypothyroid 80 normal mothers	1 to 3 month postpartum	Not mentioned	Not mentioned	Thyroid function tests	[35]
Congenital hypothyroidism	Pediatric department PIMS Islamabad	3 babies out of 1337 had CH	Neonates less than 8 days	Not mentioned	Not mentioned	Thyroid function tests through immunoradiometric assay	[36]
Congenital hypothyroidism	Gynae/Obs and Pediatric Shaikh Zayed Hospital and Jinnah Hospital, Lahore	2 out of 1357 cases	neonates	2 patients of CH	Not Mentioned	TSH levels	[37]
Congenital hypothyroidism	Department of pediatrics Mayo hospital lahor	4 out of 550 screened	Neonates 4th–7th day of life	Not mentioned	Not mentioned	Thyroid function tests through immunoradiometric assay	[38]
Congenital hypothyroidism	Pathology Department of Allama Iqbal Medical College, Lahore in collaboration with Pediatrics and Gynecology & Obstetrics Department, Jinnah Hospital, Lahore Pakistan. Lahore	3 hypothyroid out of 770 screened neonates	Not mentioned	Not mentioned	Not mentioned	Serum TSH by immunoassay	[39]
Congenital hypothyroidism	Karachi	400 multiparous women	< 26 to > 35 year	Not mentioned	Not mentioned	TSH screening done survey based	[40]