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. 2022 Jan 6;186(3):P1–P33. doi: 10.1530/EJE-21-0977

Table 1.

Level of evidence (LOE) of the studies included for this statement.

Level of evidence References
No LOE 1, 2, 3, 4, 5, 6, 7, 8, 9, 11, 12, 13, 14, 15, 19, 20, 22, 23, 25, 35, 36, 37, 38, 41, 51, 56, 60, 61, 64, 66, 67, 69, 71, 78, 79, 80, 82, 84, 85, 95, 97, 99, 100, 101, 102, 106, 107, 111, 113, 119, 128, 137, 149, 151, 152, 156, 158, 159, 162, 168, 176, 177, 179, 181, 187, 192, 197, 198, 200, 202, 205, 211, 213, 214, 215, 226, 227, 228, 229, 235, 236, 242, 243, 244
⊗◯◯◯ 26, 31, 32, 33, 39, 40, 44, 45, 50, 52, 53, 54, 55, 62, 68, 70, 74, 75, 76, 77, 81, 83, 86, 87, 88, 89, 90, 91, 92, 110, 115, 116, 117, 127, 133, 150, 157, 174, 185, 189, 191, 193, 195, 196, 199, 204, 206, 220, 221, 232, 233, 234, 237, 239
⊗⊗◯◯ 10, 16, 17, 18, 21, 24, 27, 28, 29, 30, 34, 42, 43, 46, 47, 48, 49, 57, 58, 59, 63, 65, 72, 73, 89, 93, 94, 96, 98, 103, 104, 112, 114, 118, 120, 121, 122, 123, 124, 126, 129, 130, 131, 132, 140, 141, 145, 146, 153, 154, 160, 166, 167, 169, 170, 171, 172, 175, 178, 182, 183, 184, 188, 190, 194, 201, 203, 207, 208, 209, 210, 212, 222, 223, 224, 230, 231, 238, 240
⊗⊗⊗◯ 105, 109, 125, 135, 136, 138, 139, 142, 143, 144, 147, 148, 155, 163, 165, 173, 180, 216, 217, 218, 219, 225, 241
⊗⊗⊗⊗ 108, 134, 161, 164, 186