A total of 47,289 of the 413,266 results of candidates who sat for the Nov/Dec. West African Senior School Certificate (WASSCE), had been withheld in connection with various cases of examination malpractice.
Mr Charles Eguridu, newly appointed Head of National Office, disclosed this at a news conference to announce the Nov/Dec results on Friday in Lagos.
He said that already, the cases were being investigated and reports of the investigations would be presented to the Nigerian Examination Council (NEC), for consideration.
Eguridu added that the decision of the Council would be communicated to the affected candidates through the zonal and branch offices nationwide.
Giving a further breakdown of the results, the Head of National Office said that a total of 406,108 others had their results fully processed, while 7,158 had a few of their subjects still being processed.
He attributed it to errors committed by candidates during registration and were being sorted out by the Council.
Eguridu added that out of the 49 blind candidates who participated in the examinations, 23 obtained credits and above in five subjects, including English Language.
"Blind candidates do not sit for Mathematics and Science practical in WASSCE diets," he said.
He said that a total of 161,706 candidates obtained six credits and above, while 268,688 others obtained credits and above in four subjects.
According to him, 309,706 candidates obtained credits and above in three subjects, 343,352 obtained credits and above in two subjects, while 150,615 others obtained credits in five subjects and above, including English Language and Mathematics.
He noted that 259,259 candidates obtained credits and above in English Language, while 226,608 others obtained credits in Mathematics.
According to him, a comparative analysis of candidates performance in the Nov./Dec. 2010 to 2012 of the examination under review, showed an improvement in candidates' performance.
"In the Nov/Dec 2010 WASSCE, we recorded 74,700 number of passes, that represents 24.16 per cen;, in 2011, the examination under review, recorded a total of 139, 827 representing 36.07 per cent.
"In 2012, records had just shown that we recorded a total of 150,615 passes, representing 37.97 per cent," Eguridu said.
He, however, said that Council was worried about the rising cases of examination malpractice in the country, stressing the need to get the vices tackled effectively at all cost.
"If we expect our education sector to regain not only its past glory but also improve and compete with those of other nations, we must partner with one another in the fight of this monster," he said.
Eguridu stated that already, the Council was set to introduce biometric features in its registration process for examinations, as part of measures to curb the malaise.
He called on Governments at all levels to step up efforts in upgrading facilities in schools at all levels, especially the provision of teaching aids and other physical facilities in secondary schools across the country.