Harmonisation of variables names prior to conducting statistical analyses with multiple datasets: an automated approach

Table 5 Results of the search algorithms showing the sensitivity and specificity of iterative searches.

Variables (key terms) Iterations		Variable exists	Variable does not exist	Total	Sensitivity (SS) Specificity (SP)
DTP3		205	36	241
Iteration 1	Found	196	0	196	SS	95.6%
	Not found	9	36	45	SP	100.0%
Iteration 2	Found	205	0	205	SS	100.0%
	Not found	0	36	36	SP	100.0%
DTP3d		237	4	241
Iteration 1	Found	194	0	194	SS	81.9%
	Not found	43	4	47	SP	100.0%
Iteration 2	Found	237	0	237	SS	100.0%
	Not found	0	4	4	SP	100.0%
DOI		238	3	241
Iteration 1	Found	234	0	234	SS	98.3%
	Not found	1	3	4	SP	100.0%
Iteration 2	Found	238	0	238	SS	100.0%
	Not found	0	3	3	SP	100.0%
HouMem		221	20	241
Iteration 1	Found	147	4	151	SS	66.5%
	Not found	74	16	90	SP	80.0%
Iteration 2	Found	221	0	221	SS	100.0%
	Not found	0	20	20	SP	100.0%

DTP3: third dose of DTP; DTP3d: day of the third dose of DTP3; DOI: date of interview; HouMem: number of household members.

ISSN: 1472-6947