Skip to main content
. 2022 Apr 13;13(5):1774–1786. doi: 10.1093/advances/nmac042

TABLE 2.

Overview of the effect estimates of 80 included diet–disease outcome pairs, including pooling results of BoE from RCTs and CSs based on RE and CE models, 95% PI, heterogeneity, test for subgroup difference, and PI/ECO similarity degree1

Authors (reference), BoE RCTs Authors (reference), BoE CSs Intervention/exposure category Outcome category BoE RCTs, n Effect estimate (95% CI) I 2 (%)/τ BoE CSs, n Effect estimate (95% CI) I 2 (%)/τ Pooled effect estimate (95% CI) RE (95% PI) I 2 (%)/τ Weight RCTs, % RCT conclusion modified by pooling (Yes/No) Test for subgroup difference (P value) Pooled effect estimate (95% CI) CE Degree of PI/ECO similarity+
Abdelhamid et al. (21) Chowdhury et al. (53) ω-3 fatty acids Cardiovascular disease 38 RR: 0.99 (0.94, 1.04) 37/0.00 16 RR: 0.87 (0.78, 0.97) 76/0.03 RR: 0.95 (0.90, 0.99) (0.76, 1.18) 58/0.01 58.8 Y 0.03 RR: 0.96 (0.94, 0.99) 2
Abdelhamid et al. (21) Pan et al. (13) α-Linolenic acid Cardiovascular disease 5 RR: 0.95 (0.83, 1.07) 0/0.00 11 RR: 0.93 (0.85, 1.03) 41/0.01 RR: 0.94 (0.87, 1.02) (0.77, 1.15) 30/0.01 20.6 N 0.89 RR: 0.96 (0.91, 1.02) 2
Abdelhamid et al. (21) Wan et al. (52) ω-3 fatty acids All-cause mortality 39 RR: 0.98 (0.93, 1.03) 11/0.00 6 RR: 0.86 (0.80, 0.93) 56/0.00 RR: 0.93 (0.88, 0.98) (0.79, 1.10) 34/0.01 59.7 Y 0.008 RR: 0.93 (0.90, 0.95) 2
Abdelhamid et al. (21) Wei et al. (56) α-Linolenic acid Cardiovascular mortality 4 RR: 0.96 (0.74, 1.25) 0/0.00 9 RR: 0.85 (0.75, 0.96) 16/0.01 RR: 0.85 (0.78, 0.93) (0.77, 0.94) 0/0.00 11.2 Y 0.40 RR: 0.85 (0.78, 0.93) 2
Abdelhamid et al. (21) Wei et al. (56) α-Linolenic acid Ischemic heart disease 4 RR: 1.00 (0.82, 1.22) 2/0.00 13 RR: 0.91 (0.85, 0.97) 6/0.00 RR: 0.91 (0.86, 0.97) (0.84, 1.00) 4/0.00 9.8 Y 0.37 RR: 0.91 (0.86, 0.97) 2
Abdelhamid et al. (22) Li et al. (55) Polyunsaturated fat All-cause mortality 24 RR: 0.98 (0.89, 1.07) 0/0.00 11 RR: 0.87 (0.81, 0.94) 68/0.01 RR: 0.90 (0.85, 0.96) (0.77, 1.06) 38/0.01 29.4 Y 0.06 RR: 0.88 (0.86, 0.90) 2
Abdelhamid et al. (22) Chowdhury et al. (53) Polyunsaturated fat Ischemic heart disease 15 RR: 0.87 (0.72, 1.06) 45/0.04 8 RR: 0.98 (0.90, 1.07) 54/0.01 RR: 0.95 (0.87, 1.03) (0.75, 1.20) 49/0.01 33.4 N 0.30 RR: 0.97 (0.93, 1.00) 2
Abdelhamid et al. (22) Zhu et al. (14) Polyunsaturated fat Cardiovascular disease 2 RR: 0.84 (0.60, 1.20) 79/0.05 30 RR: 0.96 (0.92, 1.00) 59/0.00 RR: 0.96 (0.92, 1.00) (0.84, 1.09) 60/0.00 6.2 N 0.47 RR: 1.00 (0.99, 1.01) 2
Adler et al. (23) Aburto et al. (57) Low sodium All-cause mortality 7 RR: 0.96 (0.84, 1.11) 0/0.00 2 RR: 0.95 (0.71, 1.27) 82/0.05 RR: 0.94 (0.81, 1.08) (0.68, 1.30) 38/0.01 39.6 N 0.94 RR: 0.94 (0.86, 1.02) 2
Adler et al. (23) Aburto et al. (57) Low sodium Cardiovascular mortality 3 RR: 0.67 (0.45, 1.01) 0/0.00 3 RR: 0.87 (0.64, 1.18) 79/0.07 RR: 0.82 (0.65, 1.04) (0.43, 1.58) 61/0.05 19.3 N 0.33 RR: 0.77 (0.69, 0.87) 2
Adler et al. (23) Aburto et al. (57) Low sodium Cardiovascular disease 4 RR: 0.76 (0.57, 1.02) 0/0.00 3 RR: 0.87 (0.64, 1.18) 79/0.07 RR: 0.83 (0.67, 1.03) (0.46, 1.30) 59/0.05 30.8 N 0.55 RR: 0.78 (0.69, 0.87) 2
Adler et al. (23) Leyvraz et al. (58) Low sodium Systolic blood pressure (mm Hg) 6 MD: −1.79 (−3.23, −0.36) 74 1 MD: −1.20 (−1.50, −0.90) NA MD: −1.59 (−2.49, −0.69) (−4.27, 1.08) 70 71.7 N 0.43 MD: −1.28 (−1.55, −1.00) 3
Adler et al. (23) Leyvraz et al. (58) Low sodium Diastolic blood pressure (mm Hg) 5 MD: −1.17 (−2.08, −0.26) 58 1 MD: 1.20 (0.95, 1.45) NA MD: −0.82 (−2.27, 0.63) (−5.73, 4.08) 93 78.9 Y <0.0001 MD: 0.76 (0.54, 0.98) 3
Al-Khudairy et al. (24) Aune et al. (59) Vitamin C Cardiovascular disease 1 HR: 0.99 (0.89, 1.10) NA 9 RR: 0.84 (0.78, 0.91) 0/0.00 HR/RR: 0.88 (0.80, 0.96) (0.72, 1.07) 29/0.01 25.1 Y 0.02 HR/RR: 0.89 (0.84, 0.95) 2
Al-Khudairy et al. (24) Aune et al. (59) Vitamin C All-cause mortality 1 HR: 1.07 (0.97, 1.18) NA 16 RR: 0.86 (0.80, 0.92) 69/0.01 HR/RR: 0.88 (0.82, 0.94) (0.70, 1.10) 71/0.01 9.3 Y 0.0004 HR/RR: 0.95 (0.92, 0.97) 2
Avenell et al. (25) Feng et al. (60) Vitamin D Hip fracture 10 RR: 1.12 (0.97, 1.30) 0/0.00 11 RR: 0.62 (0.53, 0.71) 17/0.01 RR: 0.78 (0.65, 0.93) (0.41, 1.48) 62/0.09 41.8 Y <0.00001 RR: 0.80 (0.73, 0.88) 3
Avenell et al. (25) Feng et al. (60) Vitamin D Any fracture 14 RR: 1.04 (0.95, 1.15) 18/0.01 11 RR: 0.71 (0.58, 0.86) 72/0.06 RR: 0.89 (0.80, 0.99) (0.61, 1.30) 60/0.03 54.5 Y 0.0005 RR: 0.96 (0.91, 1.01) 3
Bjelakovic et al. (26) Aune et al. (59) β-Carotene All-cause mortality 31 RR: 1.02 (0.98, 1.07) 34/0.00 8 RR: 0.82 (0.78, 0.87) 0/0.00 RR: 0.95 (0.90, 1.01) (0.76, 1.19) 67/0.01 73.0 N <0.00001 RR: 1.02 (0.99, 1.04) 2
Bjelakovic et al. (26) Aune et al. (59) Vitamin E All-cause mortality 64 RR: 1.02 (0.99, 1.04) 0/0.00 9 RR: 0.98 (0.92, 1.04) 6/0.00 RR: 1.01 (0.99, 1.03) (0.99, 1.03) 0/0.00 83.4 N 0.27 RR: 1.01 (0.99, 1.03) 2
Bjelakovic et al. (26) Aune et al. (59) Vitamin C All-cause mortality 41 RR: 1.01 (0.97, 1.05) 0/0.00 16 RR: 0.86 (0.80, 0.92) 69/0.01 RR: 0.92 (0.88, 0.96) (0.78, 1.08) 40/0.01 42.6 Y 0.0001 RR: 0.96 (0.93, 0.98) 2
Bjelakovic et al. (26) Aune et al. (59) Vitamin A All-cause mortality 18 RR: 1.04 (0.96, 1.13) 25/0.00 8 RR: 0.82 (0.78, 0.87) 0/0.00 RR: 0.93 (0.85, 1.02) (0.66, 1.30) 71/0.02 52.6 N <0.00001 RR: 0.97 (0.94, 1.01) 3
Bjelakovic et al. (28) Chowdhury et al. (61) Vitamin D All-cause mortality 56 RR: 0.97 (0.94, 1.00) 0/0.00 68 RR: 0.70 (0.65, 0.75) 83/0.05 RR: 0.76 (0.72, 0.81) (0.48, 1.22) 84/0.05 28.0 Y <0.00001 RR: 0.79 (0.77, 0.80) 3
Bjelakovic et al. (28) Chowdhury et al. (61) Vitamin D Cardiovascular mortality 10 RR: 0.98 (0.90, 1.07) 0/0.00 29 RR: 0.69 (0.60, 0.79) 84/0.10 RR: 0.73 (0.65, 0.83) (0.39, 1.38) 83/0.09 14.6 Y <0.0001 RR: 0.75 (0.72, 0.79) 3
Bjelakovic et al. (28) Han et al. (62) Vitamin D Cancer mortality 4 RR: 0.88 (0.78, 0.98) 0/0.00 16 RR: 0.81 (0.71, 0.93) 49/0.04 RR: 0.83 (0.75, 0.92) (0.61, 1.12) 41/0.02 27.2 N 0.39 RR: 0.83 (0.78, 0.88) 3
Bjelakovic et al. (27) Han et al. (62) Vitamin D Cancer 18 RR: 1.00 (0.94, 1.06) 0/0.00 8 RR: 0.86 (0.73, 1.02) 71/0.03 RR: 0.93 (0.85, 1.02) (0.73, 1.19) 38/0.01 44.7 N 0.11 RR: 0.96 (0.91, 1.01) 3
Bjelakovic et al. (27) Hossain et al. (63) Vitamin D Breast cancer 7 RR: 0.97 (0.86, 1.09) 0/0.00 2 RR: 0.94 (0.87, 1.02) 69/0.00 RR: 0.97 (0.95, 0.99) (0.94, 0.99) 0/0.00 3.9 Y 0.68 RR: 0.97 (0.95, 0.99) 2
Bjelakovic et al. (27) Zhang et al. (64) Vitamin D Lung cancer 5 RR: 0.86 (0.69, 1.07) 0/0.00 3 RR: 0.89 (0.77, 1.03) 0/0.00 RR: 0.88 (0.78, 0.99) (0.75, 1.02) 0/0.00 31.4 Y 0.81 RR: 0.88 (0.78, 0.99) 2
De-Regil et al. (51) Blencowe et al. (93) Folate Neural tube defect 5 RR: 0.31 (0.17, 0.58) 0/0.00 3 RR: 0.37 (0.23, 0.58) 30/0.06 RR: 0.39 (0.30, 0.50) (0.28, 0.54) 0/0.00 18.0 N 0.68 RR: 0.39 (0.30, 0.50) 2
De-Regil et al. (51) Feng et al. (92) Folate Congenital cardiovascular anomalies 3 RR: 0.57 (0.24, 1.33) 0/0.00 1 RR: 0.60 (0.38, 0.96) NA RR: 0.59 (0.39, 0.89) (0.24, 1.46) 0/0.00 23.1 Y 0.91 RR: 0.59 (0.39, 0.89) 2
Hemmingsen et al. (33) Schwingshackl et al. (68) Healthy diet Type 2 diabetes 1 RR: 0.65 (0.52, 0.81) NA 10 RR: 0.82 (0.78, 0.85) 72/0.01 RR: 0.81 (0.78, 0.85) (0.68, 0.97) 72/0.01 2.5 N 0.05 RR: 0.81 (0.79, 0.83) 2
Hemmingsen et al. (33) Schwingshackl et al. (68) Healthy diet All-cause mortality 1 RR: 1.02 (0.21, 4.98) NA 13 RR: 0.78 (0.77, 0.80) 59/0.00 RR: 0.78 (0.77, 0.80) (0.73, 0.84) 58/0.00 0 Y 0.74 RR: 0.78 (0.77, 0.79) 2
Hofmeyr et al. (34) Newberry et al. (69) Calcium Pre-eclampsia 13 RR: 0.47 (0.33, 0.68) 70/0.18 2 RR: 0.97 (0.78, 1.21) 13/0.01 RR: 0.59 (0.45, 0.78) (0.27, 1.31) 69/0.11 73.6 N 0.0008 RR: 0.85 (0.76, 0.95) 2
Hofmeyr et al. (34) Newberry et al. (69) Calcium High blood pressure 12 RR: 0.65 (0.53, 0.81) 74/0.06 2 RR: 1.12 (0.83, 1.50) 66/0.03 RR: 0.76 (0.64, 0.90) (0.45, 1.28) 74/0.05 75.7 N 0.004 RR: 0.91 (0.85, 0.96) 2
Hooper et al. (35) Noto et al. (71) Low fat/modified fat Cardiovascular mortality 14 RR: 0.94 (0.85, 1.04) 0/0.00 3 RR: 0.91 (0.81, 1.03) 0/0.00 RR: 0.93 (0.86, 1.00) (0.85, 1.01) 0/0.00 57.7 N 0.69 RR: 0.93 (0.86, 1.00) 2
Hooper et al. (35) Seidelmann et al. (70) Low fat/modified fat All-cause mortality 20 RR: 0.98 (0.93, 1.04) 0/0.00 6 RR: 0.83 (0.75, 0.92) 40/0.00 RR: 0.92 (0.87, 0.98) (0.80, 1.06) 22/0.00 60.1 Y 0.005 RR: 0.92 (0.88, 0.96) 2
Hooper et al. (35) Zhu et al. (14) Low fat/modified fat Cardiovascular disease 18 RR: 0.86 (0.77, 0.96) 50/0.02 32 RR: 1.03 (0.99, 1.07) 56/0.01 RR: 1.00 (0.96, 1.04) (0.83, 1.20) 56/0.01 21.2 Y 0.002 RR: 1.00 (0.98, 1.01) 2
Hooper et al. (36) de Souza et al. (73) Low saturated fat All-cause mortality 11 RR: 0.97 (0.90, 1.05) 3/0.00 5 RR: 1.01 (0.92, 1.10) 33/0.00 RR: 0.99 (0.94, 1.05) (0.88, 1.12) 18/0.00 44.4 N 0.57 RR: 1.01 (0.96, 1.05) 2
Hooper et al. (36) de Souza et al. (73) Low saturated fat Cardiovascular mortality 10 RR: 0.95 (0.80, 1.12) 30/0.02 3 RR: 1.03 (0.89, 1.18) 18/0.00 RR: 0.99 (0.89, 1.10) (0.77, 1.26) 25/0.01 56.7 N 0.46 RR: 0.98 (0.91, 1.06) 2
Hooper et al. (36) de Souza et al. (73) Low saturated fat Cardiovascular disease 11 RR: 0.83 (0.72, 0.96) 65/0.03 12 RR: 0.95 (0.86, 1.05) 47/0.02 RR: 0.90 (0.83, 0.98) (0.67, 1.23) 55/0.02 39.2 N 0.15 RR: 0.94 (0.90, 0.98) 2
Hooper et al. (38) Chowdhury et al. (53) ω-6 fatty acids Cardiovascular disease 7 RR: 0.97 (0.81, 1.15) 45/0.02 8 RR: 0.98 (0.90, 1.06) 54/0.01 RR: 0.97 (0.91, 1.04) (0.81, 1.17) 46/0.01 29.5 N 0.91 RR: 0.98 (0.94, 1.01) 2
Hooper et al. (38) Li et al. (55) ω-6 fatty acids All-cause mortality 10 RR: 1.00 (0.88, 1.12) 0/0.00 11 RR: 0.87 (0.81, 0.94) 68/0.01 RR: 0.90 (0.84, 0.96) (0.75, 1.08) 54/0.01 20.1 Y 0.07 RR: 0.88 (0.86, 0.90) 2
Hooper et al. (38) Li et al. (55) ω-6 fatty acids Cardiovascular mortality 7 RR: 1.09 (0.76, 1.55) 61/0.1 14 RR: 0.86 (0.81, 0.92) 6/0.00 RR: 0.89 (0.81, 0.98) (0.69, 1.14) 39/0.01 21.1 Y 0.21 RR: 0.89 (0.85, 0.93) 2
Jin et al. (20) Jin et al. (20) Flavonoids Colorectal adenoma/cancer 1 RR: 1.09 (0.93, 1.28) NA 3 RR: 1.00 (0.80, 1.25) 66/0.02 RR: 1.03 (0.88, 1.20) (0.56, 1.88) 56/0.01 30.4 N 0.55 RR: 1.02 (0.93, 1.13) 3
Jin et al. (20) Jin et al. (20) Isoflavones Colorectal adenoma/cancer 1 RR: 0.98 (0.83, 1.16) NA 1 RR: 1.16 (0.96, 1.41) NA RR: 1.06 (0.90, 1.25) (NA) 43/0.01 54.1 N 0.19 RR: 1.06 (0.93, 1.19) 3
Jin et al. (20) Jin et al. (20) Flavonols Colorectal adenoma/cancer 1 RR: 0.94 (0.80, 1.10) NA 1 RR: 0.95 (0.83, 1.08) NA RR: 0.94 (0.85, 1.04) (NA) 0/0.01 39.5 N 0.93 RR: 0.94 (0.85, 1.04) 3
Keats et al. (50) Wolf et al. (94) Micronutrients Preterm birth 18 RR: 0.95 (0.89, 1.01) 51/0.01 4 RR: 0.84 (0.69, 1.03) 73/0.03 RR: 0.93 (0.88, 0.99) (0.77, 1.12) 58/0.01 80.4 Y 0.26 RR: 0.95 (0.92, 0.97) 2
Keats et al. (50) Wolf et al. (94) Micronutrients Low birth weight 18 RR: 0.88 (0.85, 0.91) 0/0.00 2 RR: 0.79 (0.45, 1.41) 89/0.15 RR: 0.88 (0.84, 0.92) (0.81, 0.95) 9/0.00 94.4 N 0.72 RR: 0.88 (0.85, 0.91) 2
Keats et al. (50) Wolf et al. (94) Micronutrients Small gestational age 17 RR: 0.92 (0.87, 0.97) 40/0.00 3 RR: 0.77 (0.63, 0.93) 43/0.01 RR: 0.89 (0.83, 0.95) (0.70, 1.12) 69/0.01 85.8 N 0.07 RR: 0.96 (0.94, 0.98) 2
Kelly et al. (39) Ye et al. (74) Whole grains Body weight, kg 5 MD: −0.41 (−1.04, 0.23) 0 3 MD: −0.30 (−0.37, −0.24) 99 MD: −0.31 (−0.37, −0.24) (−0.46, −0.15) 98 1.0 Y 0.76 MD: −0.33 (−0.34, −0.33) 2
Mathew et al. (40) Jiang et al. (75) β-Carotene Cataract 2 RR: 0.99 (0.91, 1.08) 0/0.00 7 RR: 0.90 (0.83, 0.99) 0/0.00 RR: 0.95 (0.90, 1.01) (0.88, 1.02) 0/0.00 53.9 N 0.12 RR: 0.95 (0.90, 1.01) 2
Mathew et al. (40) Jiang et al. (75) Vitamin E Cataract 3 RR: 0.97 (0.91, 1.04) 0/0.00 6 RR: 0.88 (0.75, 1.03) 31/0.01 RR: 0.94 (0.88, 1.01) (0.84, 1.06) 12/0.00 67.5 N 0.25 RR: 0.95 (0.90, 1.00) 2
Mathew et al. (40) Jiang et al. (75) Vitamin C Cataract 1 RR: 1.02 (0.91, 1.14) NA 7 RR: 0.74 (0.59, 0.95) 78/0.07 RR: 0.79 (0.64, 0.97) (0.41, 1.50) 81/0.06 17.5 Y 0.02 RR: 0.88 (0.82, 0.95) 2
Palacios et al. (41) Hu et al. (77) Vitamin D Gestational diabetes 5 RR: 0.54 (0.34, 0.86) 0/0.00 21 OR: 0.76 (0.64, 0.90) 61/0.08 RR/OR: 0.74 (0.63, 0.87) (0.42, 1.31) 54/0.07 7.8 N 0.18 RR/OR: 0.73 (0.67, 0.80) 3
Palacios et al. (41) Tous et al. (78) Vitamin D Preterm birth 4 RR: 1.25 (0.92, 1.69) 0/0.00 19 OR: 0.77 (0.65, 0.92) 63/0.08 RR/OR: 0.82 (0.69, 0.98) (0.43, 1.57) 63/0.09 13.6 Y 0.008 RR/OR: 0.77 (0.70, 0.84) 3
Palacios et al. (41) Tous et al. (78) Vitamin D Birth length, cm 11 MD: −0.04 (−0.26, 0.19) 23 7 MD: −0.12 (−0.33, 0.09) 62 MD: −0.08 (−0.23, 0.07) (−0.50, 0.34) 41 41.1 N 0.60 MD: −0.06 (−0.16, 0.03) 3
Palacios et al. (41) Tous et al. (78) Vitamin D Birth weight, g 13 MD: 32.61 (−9.51, 74.72) 22 14 MD: 84.20 (52.59, 115.81) 58 MD: 68.33 (40.42, 96.24) (−34.39, 171.05) 55 33.6 Y 0.05 MD: 73.53 (57.69, 89.37) 3
Palacios et al. (41) Tous et al. (78) Vitamin D Head circumference at birth, cm 10 MD: 0.08 (−0.09, 0.25) 40 7 MD: 0.47 (−0.16, 1.11) 98 MD: 0.26 (−0.06, 0.58) (−1.12, 1.64) 95 55.2 N 0.24 MD: 0.07 (−0.00, 0.14) 3
Palacios et al. (41) Yuan et al. (76) Vitamin D Pre-eclampsia 5 RR: 0.96 (0.65, 1.42) 0/0.00 15 OR: 0.62 (0.50, 0.77) 60/0.10 RR/OR: 0.66 (0.54, 0.81) (0.33, 1.30) 55/0.10 12.2 Y 0.06 RR/OR: 0.67 (0.60, 0.76) 3
Rees et al. (42) Kastorini et al. (79) Healthy diet Systolic blood pressure, mm Hg 11 MD: −2.61 (−3.91, −1.31) 55 1 MD: 0.80 (−0.84, 2.44) NA MD: −2.18 (−3.55, −0.82) (−6.19, 1.82) 67 85.9 N 0.001 MD: −1.86 (−2.45, −1.28) 2
Rees et al. (42) Kastorini et al. (79) Healthy diet Diastolic blood pressure, mm Hg 11 MD: −1.45 (−2.22, −0.68) 45 1 MD: 0.90 (−0.38, 2.18) NA MD: −1.21 (−2.05, −0.36) (−3.66, 1.25) 61 87.2 N 0.002 MD: −1.03 (−1.46, −0.60) 2
Rees et al. (43) Jayedi et al. (95) Selenium All-cause mortality 2 RR: 0.97 (0.88, 1.08) 0/0.00 3 RR: 0.79 (0.73, 0.85) 0/0.00 RR: 0.86 (0.77, 0.96) (0.60, 1.22) 62/0.01 40.6 Y 0.001 RR: 0.85 (0.80, 0.91) 2
Rees et al. (43) Xiang et al. (80) Selenium Cardiovascular mortality 2 RR: 1.02 (0.74, 1.41) 44/0.03 3 RR: 0.77 (0.63, 0.94) 6/0.00 RR: 0.85 (0.70, 1.04) (0.50, 1.46) 38/0.02 45.5 N 0.15 RR: 0.86 (0.75, 0.98) 3
Rees et al. (43) Zhang et al. (81) Selenium Cardiovascular disease 2 RR: 1.03 (0.95, 1.11) 0/0.00 14 RR: 0.87 (0.76, 1.00) 4/0.00 RR: 0.94 (0.85, 1.04) (0.77, 1.15) 16/0.01 47.2 N 0.04 RR: 0.98 (0.92, 1.05) 3
Rees et al. (44) Kastorini et al. (79) Mediterranean diet HDL, mmol/L 6 MD: 0.02 (−0.01, 0.04) 0 1 MD: 0.01 (−0.04, 0.06) NA MD: 0.02 (−0.01, 0.04) (−0.01, 0.04) 0 82.3 N 0.84 MD: 0.02 (−0.01, 0.04) 2
Rees et al. (44) Kastorini et al. (79) Mediterranean diet Triglycerides, mmol/L 7 MD: −0.09 (−0.17, −0.01) 16 1 MD: −0.02 (−0.07, 0.03) NA MD: −0.06 (−0.13, −0.00) (−0.19, 0.07) 25 64.0 Y 0.15 MD: −0.05 (−0.09, −0.01) 2
Rees et al. (44) Kastorini et al. (79) Mediterranean diet Systolic blood pressure, mm Hg 4 MD: −1.50 (−3.92, 0.92) 16 1 MD: 0.80 (−0.84, 2.44) NA MD: −0.56 (−2.60, 1.48) (−6.14, 5.03) 38 59.7 N 0.12 MD: −0.07 (−1.38, 1.23) 2
Rees et al. (44) Rosato et al. (83) Mediterranean diet Cardiovascular mortality 1 HR: 0.81 (0.50, 1.32) NA 7 RR: 0.74 (0.67, 0.81) 47/0.01 HR/RR: 0.74 (0.68, 0.81) (0.61, 0.91) 40/0.01 5.4 Y 0.71 RR: 0.78 (0.75, 0.81) 2
Rees et al. (44) Rosato et al. (83) Mediterranean diet Cardiovascular disease 1 HR: 0.70 (0.58, 0.85) NA 11 RR: 0.81 (0.74, 0.88) 80/0.01 HR/RR: 0.80 (0.74, 0.87) (0.62, 1.03) 78/0.01 10.8 N 0.19 RR: 0.84 (0.82, 0.87) 2
Rees et al. (44) Soltani et al. (82) Mediterranean diet All-cause mortality 1 HR: 1.00 (0.81, 1.24) NA 26 RR: 0.90 (0.89, 0.92) 80/0.00 HR/RR: 0.91 (0.89, 0.92) (0.86, 0.95) 78/0.00 0.5 Y 0.34 RR: 0.92 (0.92, 0.93) 2
Rutjes et al. (45) Doets et al. (84) B-vitamins Dementia/MCI 1 RR: 1.01 (0.69, 1.48) NA 3 RR: 0.99 (0.99, 1.00) 22/0.00 RR: 0.99 (0.99, 1.00) (0.98, 1.01) 0/0.00 0.0 N 0.95 RR: 0.99 (0.99, 1.00) 3
Rutjes et al. (45) Goodwill and Szoeke (85) Vitamin D Dementia/MCI 1 RR: 1.09 (0.70, 1.71) NA 14 OR: 0.88 (0.82, 0.95) 56/0.01 RR/OR: 0.88 (0.82, 0.95) (0.71, 1.11) 54/0.01 2.3 Y 0.34 RR/OR: 0.91 (0.87, 0.95) 3
Tieu et al. (47) Chia et al. (87) Healthy diet Preterm birth 3 RR: 0.52 (0.21, 1.28) 0/0.00 5 OR: 0.81 (0.69, 0.94) 31/0.01 RR/OR: 0.83 (0.75, 0.93) (0.70, 1.00) 6/0.00 1.4 Y 0.35 RR/OR: 0.86 (0.79, 0.93) 2
Tieu et al. (47) Chia et al. (87) Healthy diet Small gestational age 2 RR: 0.84 (0.49, 1.42) 0/0.00 8 OR: 0.88 (0.71, 1.08) 36/0.03 RR/OR: 0.88 (0.75, 1.03) (0.64, 1.21) 19/0.01 8.1 N 0.88 RR/OR: 0.91 (0.86, 0.97) 2
Tieu et al. (47) Chia et al. (87) Healthy diet Birth weight, g 5 MD: 5.94 (−51.11, 62.99) 0 12 MD: −9.61 (−53.12, 33.91) 86 MD: −8.56 (−46.48, 29.36) (−152.77, 135.64) 81 17.2 N 0.67 MD: 36.30 (22.33, 50.26) 2
Tieu et al. (47) Mijatovic-Vukas et al. (88) Healthy diet Gestational diabetes 5 RR: 0.61 (0.36, 1.04) 54/0.18 4 OR: 0.70 (0.62, 0.80) 6/0.00 RR/OR: 0.69 (0.59, 0.81) (0.48, 1.00) 33/0.02 22.4 Y 0.60 RR/OR: 0.71 (0.63, 0.79) 2
Vinceti et al. (19) Vinceti et al. (19) Selenium Cancer 5 RR: 0.99 (0.86, 1.14) 46/0.01 7 OR: 0.72 (0.55, 0.93) 46/0.06 RR/OR: 0.86 (0.73, 1.01) (0.52, 1.42) 64/0.04 54.3 N 0.03 RR/OR: 0.94 (0.88, 1.01) 3
Vinceti et al. (19) Vinceti et al. (19) Selenium Cancer mortality 2 RR: 0.81 (0.49, 1.32) 79/0.10 1 OR: 0.93 (0.83, 1.04) NA RR/OR: 0.90 (0.78, 1.05) (0.53, 1.54) 46/0.01 33.6 N 0.58 RR/OR: 0.92 (0.83, 1.01) 2
Vinceti et al. (19) Vinceti et al. (19) Selenium Colorectal cancer 3 RR: 0.74 (0.41, 1.33) 48/0.13 1 OR: 0.80 (0.68, 0.94) NA RR/OR: 0.82 (0.64, 1.04) (0.38, 1.78) 28/0.02 40.5 N 0.80 RR/OR: 0.82 (0.71, 0.94) 2
Yao et al. (49) Aune et al. (91) Fiber Colorectal cancer 2 RR: 2.69 (1.06, 6.82) 0/0.00 19 RR: 0.88 (0.82, 0.94) 4/0.00 RR: 0.88 (0.82, 0.96) (0.74, 1.05) 18/0.01 0.7 Y 0.02 RR: 0.88 (0.83, 0.94) 2
Yao et al. (49) Ben et al. (90) Fiber Colorectal adenoma 5 RR: 1.04 (0.94, 1.14) 4/0.00 4 RR: 0.92 (0.76, 1.11) 33/0.01 RR: 1.00 (0.91, 1.11) (0.82, 1.23) 23/0.00 65.9 N 0.26 RR: 1.00 (0.93, 1.08) 3
1

BoE, bodies of evidence; CE, common-effect model; CS, cohort study; MCI, mild cognitive impairment; MD, mean difference; NA, not applicable; PI, prediction interval; PI/ECO, population, intervention/exposure, comparator, outcome; RCT, randomized controlled trial; RE, random-effects model; RR, risk ratio.