Table 1.

Monthly Diarrhea and Rotavirus Counts and Incidence Rates per 100 000 Children per Year by Site Prior to Rotavirus Vaccine Introduction (January 2010–June 2014)

	Kilifi						Siaya
	Person-years	Diarrhea	Rotavirus (Observed)	Rotavirus (Scaled)	Diarrhea Incidence	Rotavirus Incidence	Person-years	Diarrhea	Rotavirus (Observed)	Rotavirus (Scaled)	Diarrhea Incidence	Rotavirus Incidence
January	20 041	90	19	22	449	110	8169	218	22	49	2669	600
February	20 041	86	12	16	429	80	8169	220	39	70	2693	857
March	20 041	103	15	19	514	95	8169	136	25	51	1665	624
April	20 041	113	21	29	564	145	8169	116	16	30	1420	367
May	20 041	125	22	29	624	145	8169	160	24	37	1959	453
June	20 041	158	37	47	788	235	8169	164	9	18	2008	220
July	16 055	118	38	52	735	324	6769	111	8	13	1640	192
August	16 055	78	39	46	486	287	6769	73	8	13	1078	192
September	16 055	65	25	33	405	206	6769	65	9	12	960	177
October	16 055	58	12	14	361	87	6769	70	7	11	1034	163
November	16 055	68	5	6	424	37	6769	73	6	12	1078	177
December	16 055	40	4	6	249	37	6769	81	9	19	1197	281

Rotavirus incidence rates are scaled as described in the Methods section.