Table 6. Example table: descriptive associations between demographic, environmental and genetic variables and progression to advanced age-related macular degeneration.

	Progressors, n (%)	Non-progressors, n (%)	OR (95% CI)	P
Total patients	279	1167
Age (years)
<70	137 (49)	743 (64)	1.0
70+	142 (51)	424 (36)	1.8 (1.4–2.4)	<0.001
Sex
Female	163 (58)	694 (59)	1.0	0.74
Male	116 (42)	473 (41)	1.0 (0.8–1.4)
Education
≤High school	119 (43)	383 (33)	1.0	0.002
>High school	160 (57)	784 (67)	0.7 (0.5–0.9)
Baseline AMD grades
2	8 (3)	446 (38)	1.0
3	161 (58)	566 (48)	15.9 (7.7–32.6)	<0.001
4	110 (39)	155 (13)	39.6 (18.9–83.0)
Smoking
Never	110 (39)	557 (48)	1.0
Past	137 (49)	564 (48)	1.2 (0.9–1.6)	0.14
Current	32 (11)	46 (4)	3.5 (2.1–5.8)	<0.001
BMI
<25	69 (25)	416 (36)	1.0
25–29	130 (47)	484 (41)	1.6 (1.2–2.2)	0.003
30+	80 (29)	267 (23)	1.8 (1.3–2.6)	0.001
Treatment group
Placebo	74 (27)	264 (23)	1.0
Antioxidants	77 (28)	295 (25)	0.9 (0.7–1.3)	0.70
Zinc	67 (24)	294 (25)	0.8 (0.6–1.2)	0.27
Antioxidants and zinc	61 (22)	314 (27)	0.7 (0.5–1.0)	0.056
rs1061170
TT	39 (14)	366 (31)	1.0
CT	116 (42)	521 (45)	2.1 (1.4–3.1)
CC	124 (44)	280 (24)	4.1 (2.8–6.1)	<0.001
rs10490924
GG	67 (24)	612 (52)	1.0
GT	138 (49)	446 (38)	2.8 (2.1–3.9)	<0.001
TT	74 (27)	109 (9)	6.2 (4.2–9.1)
rs1410996
TT	8 (3)	158 (14)	1.0
CT	74 (27)	472 (40)	3.1 (1.5–6.6)	<0.001
CC	197 (71)	537 (46)	7.2 (3.5–15.0)
rs9332739
GG	271 (97)	1075 (92)	1.0
CG/CC	8 (3)	92 (8)	0.3 (0.2–0.7)	0.005
rs641153
CC	256 (92)	1023 (88)	1.0
CT/TT	23 (8)	143 (12)	0.6 (0.4–1.0)	0.06
rs2230199
CC	124 (44)	652 (56)	1.0
CG	130 (47)	456 (39)	1.5 (1.1–2.0)
GG	25 (9)	59 (5)	2.2 (1.3–3.7)	<0.001

Adapted from ref. 6.