Table 2.

Cognitive function test scores in each AMD subtype and control subject of the included studies

Study	AMD (total)				AMD (wet)				AMD (dry)				Control			Measure
	n	Mean	SD	P-value	n	Mean	SD	P-value	n	Mean	SD	P-value	n	Mean	SD
Woo12	170	24.97	3.30	<0.001	107	24.5	0.26	<0.001	17	23.42	0.62	<0.001	190	25.99	2.79	MMSE
Rozzini21	51	26.8	3.2	0.050	31	27.2	2.8	0.081	20	26.2	3.6	0.011	24	28.3	1.3	MMSE
Peiretti22	136	27.8	1.5	0.721									38	27.7	1.6	MMSE
Mandas23	119	20.9	6.3	0.008									730	22.5	6.0	MMSE
Al-Salem6	138	3.68	1.61	<0.001	56	3.95	1.65	0.001	82	3.5	1.59	<0.001	91	4.63	0.85	Mini-Cog test
Demirci7	59	24.3	3.88	0.002	45	25.46	2.80	0.071	14	20.71	4.71	<0.001	49	26.59	3.16	MMSE
Demirci7	59	13.7	5.50	0.21	45	14.84	5.20	0.845	14	10.14	5.03	0.005	49	15.06	5.66	Animal fluency
Kelly24	121	15.5	4.0	<0.001									105	21.6	5.8	Animal fluency
Woo12	170	83.49	78.10	0.001	107	96.34	5.35	<0.001	17	135.03	13.09	<0.001	190	64.83	37.61	TMT-A
Rozzini21	51	78.4	57.4	0.09	31	80.4	66.4	0.154	20	74.8	37.2	0.104	24	60	20.9	TMT-A
Woo12	170	201.22	86.09	0.002	107	222.59	7.39	<0.001	17	213.98	18.04	0.291	190	192.84	81.93	TMT-B
Rozzini21	51	131.9	72.5	0.92	31	130.9	88.4	0.856	20	133.7	32.9	0.600	24	127.3	44.9	TMT-B

Abbreviations: AMD, age-related macular degeneration; MMSE, mini-mental state examination; SD, standard deviation; TMT, trail making test.