Table 1.

The methodological and prevalence details of included studies

Ref.	Area; setting	Age(yr)	Sampling, diagnostic method	Prevalence of ID (%)	Sample size
Surya et al[10]	Urban; community	0-15	Screening schedule + CI	0.7	2731
Sethi et al[11]	Urban; community	0-10	Comprehensive questionnaire + CI	5.74	541
Dube et al[12]	Mixed; community	44693	CI	0.37	8035
Elnagar et al[11]	Rural; community	0-14	CI + WHO ECH	0.86	635
Sethi et al[14]	Rural; community	0-10	Comprehensive questionnaire, CI	6.84	877
Verghese et al[15]	Urban; community	44663	Comprehensive questionnaire + ICD-9	2.01	747
Nandi et al[16]	Rural; community	0-11	Comprehensive questionnaire + WHO ECH	0.28	462
Thacore et al[17]	Urban; community	0-15	CI + DSM II	2.94	2696
Jiloha et al[18]	Rural; school	44693	Comprehensive questionnaire + ICD-9	5.87	715
Singh et al[19]	Urban; community	44575	CI + ICD-9	4.7	279
Deivasigamani et al[20]	Urban; school	44785	Rutter B + ICD 9	2.9	755
Uma et al[21]	Mixed; School	44624	PBCL (parent version)	2.91	155
Banerjee et al[22]	Urban; school	44783	CI + CBQ + ICD-9	5.4	460
Gaur et al[23]	Mixed; community	44726	CPMS + DISC + ICD-10 schedule	3.25	800
SriP-Editornath et al[24]	Mixed; community	0-16	CBCL + DISC + VSMS + CGAS + ICD-10	2.3	2064
Bansal et al[25]	Rural; community	44849	CPMS +ICD-10
Patil et al[26]	Urban; community	44695	CI + DSM-IV	2.4	257
Sarda et al[27]	Mixed; school	44667	CBS + CBCL + DISC + ICD-10	0.99	1110
Arora et al[28]	Mixed; community		INCLEN Measures + DSM-IV-TR	3.6	3964

CI: Clinical Interview; CBQ: Children’s Behaviour Questionnaire; CBCL: Child Behaviour Check List; CPMS: Indian Adaptation of CBCL; DSM: Diagnostic and Statistical Manual (edition IV and IV-TR); CGAS: Children’s Global Assessment Scale; DISC: Diagnostic Interview Schedule for Children; ECH: WHO expert committee on mental health criteria; ICD: International Classification of Diseases (edition 9 and 10); INCLEN: The International Clinical Epidemiology Network; PBCL: Preschool Behaviour Check List; VSMS: Vineland Social Maturity Scale.