A Comparative Study of the Epidemiology of Treponemal Infection in the Volta and Oti Regions of Ghana: A Five-Year Multisite Parallel Population-Based Analysis vis-à-vis the Sentinel Survey

Table 2

Site-specific year-on-year distribution of treponemal infection among blood donors.

Parameter	Total	2013	2014	2015	2016	2017	for trends
Ho	85/4212 (2.02)	32/1126 (2.84)	10/630 (1.59)	17/646 (2.63)	22/892 (2.47)	4/918 (0.44)	0.0031
Tongu	25/2127 (1.18)	2/225 (0.89)	1/300 (0.33)	2/464 (0.43)	11/529 (2.08)	9/609 (1.48)	0.0610
Hohoe	226/4908 (4.60)	18/273 (6.59)	48/1121 (4.28)	64/1122 (5.70)	87/1449 (6.00)	9/943 (0.95)	0.0013
Krachi West	87/6497 (1.34)	26/1129 (2.30)	16/1144 (1.40)	10/1104 (0.91)	24/1551 (1.55)	11/1569 (0.70)	0.0030
value	<0.0001	0.0004	<0.0001	<0.0001	<0.0001	0.1442

Data are presented as frequency (positive/total) with the corresponding percentage in parenthesis. is significant at 0.05. for trends: evaluating significant yearly linear trends; : an intersite comparison.