{"paper_id":"73ecab59-5213-48d5-938f-c1ada05a7be4","body_text":"1. Background\n2. Methods\n3. Results\n| Variable | Case | Control | Total | Estimate of Coefficient | |||\n|---|---|---|---|---|---|---|---|\n| β | SD (β) | OR | P Value | ||||\n| Age, yb | 34.8 ± 0.62 | 33.7 ± 0.55 | 33.3 ± 8.75 | 0.041 | 0.011 | 1.042 | < 0.001 |\n| BMI, kg/m2b | 24.8 ± 0.62 | 23.2 ± 0.45 | 23.7 ± 3.88 | 0.107 | 0.054 | 1.11 | 0.047 |\n| Marital status | |||||||\n| Single | 42 (19.4) | 52 (24.1) | 94 (21.8) | - | - | - | - |\n| Married | 174 (80.6) | 164 (75.9) | 338 (78.2) | 0.277 | 0.236 | 1.319 | 0.241 |\n| Regular menstruationb | |||||||\n| Positive | 96 (44.4) | 73 (33.8) | 169 (39.1) | - | - | - | - |\n| Negative | 120 (55.6) | 143 (66.2) | 263 (60.9) | 0.449 | 0.199 | 1.567 | 0.024 |\n| Duration of menstrual cyclesb | |||||||\n| ≥ 27 | 69 (31.9) | 42 (21.8) | 116 (26.9) | .598 | 0.349 | 1.818 | 0.087 |\n| 28 | 126 (58.3) | 143 (66.2) | 269 (62.3) | 0.087 | 0.318 | 1.091 | 0.784 |\n| ≤ 29 | 21 (9.7) | 26 (12) | 47 (10.9) | - | - | - | - |\n| Duration of menstrual bleedingb | |||||||\n| ≥ 4 | 16 (7.6) | 24 (11.1) | 40 (9.3) | - | - | - | - |\n| 5 | 126 (58.3) | 143 (66.2) | 269 (62.3) | 0.279 | 0.345 | 1.322 | 0.419 |\n| ≤ 6 | 74 (34.3) | 49 (22.7) | 23 (28.5) | 0.818 | 0.372 | 2.265 | 0.028 |\n| Dysmenorrheab | |||||||\n| Positive | 68 (31.5) | 44 (20.4) | 112 (25.6) | 0.584 | 0.224 | 1.796 | 0.028 |\n| Negative | 148 (68.5) | 172 (79.6) | 320 (74.1) | - | - | - | - |\n| Duration of pain | |||||||\n| 1 - 2 days | 2 (2.9) | 3 (6.8) | 5 (4.5) | - | - | - | - |\n| > 3 | 66 (97.1) | 41 (93.2) | 107 (95.5) | 0.882 | 0.934 | 2.415 | 0.345 |\n| Number of pregnanciesb | |||||||\n| 0 | 48 (22.2) | 37 (17.1) | 85 (19.7) | - | - | - | - |\n| 1 | 31 (14.4) | 59 (27.3) | 90 (20.8) | 0.904 | 0.312 | 0.405 | 0.004 |\n| 2 | 32 (14.8) | 35 (16.2) | 67 (15.5) | 0.350 | 0.328 | 0.705 | 0.286 |\n| ≤ 3 | 65 (30.1) | 34 (15.7) | 99 (22.9) | 0.388 | 0.304 | 1.474 | 0.203 |\n| Number of live birthsb | |||||||\n| 0 | 54 (25) | 49 (22.7) | 103 (23.8) | - | - | - | - |\n| 1 | 34 (15.3) | 60 (27.8) | 93 (21.5) | 0.355 | 0.303 | 0.701 | 0.244 |\n| 2 | 30 (13.9) | 36 (16.7) | 66 (15.3) | 0.061 | 0.325 | 1.065 | 0.852 |\n| ≤ 3 | 59 (27.3) | 20 (9.3) | 79 (18.3) | 1.325 | 0.334 | 3.761 | < 0.001 |\n| Number of abortionb | |||||||\n| 0 | 147 (68.1) | 135 (62.5) | 282 (65.3) | - | - | - | - |\n| ≤ 1 | 29 (13.4) | 30 (13.9) | 59 (13.7) | 0.328 | 0.243 | 0.176 | 1.388 |\n| Using OCPs | |||||||\n| Positive | 16 (7.4) | 22 (10.2) | 38 (8.8) | - | - | - | - |\n| Negative | 160 (74.1) | 143 (66.2) | 303 (70.1) | 0.349 | 0.344 | 0.705 | 0.310 |\n| Dyspareuniab | |||||||\n| Positive | 30 (13.9) | 36 (16.7) | 66 (15.4) | 0.586 | 0.224 | 1.796 | 0.009 |\n| Negative | 147 (68.1) | 129 (59.7) | 276 (63.9) | - | - | - | - |\n| Family history of endometriosis | |||||||\n| Positive | - | 3 (1.4) | 3 (0.7) | - | - | - | - |\n| Negative | 216 (100) | 213 (98.6) | 429 (99.3) | - | - | - | - |\n| History of pelvic infection | |||||||\n| Positive | 4 (0.2) | 4 (0.2) | 8 (1.8) | 0.292 | 0.770 | 1.340 | 0.704 |\n| Negative | 212 (98) | 212 (98) | 425 (98.2) | - | - | - | - |\n| History of infertilityb | |||||||\n| Positive | 37 (17.2) | 9 (4.2) | 46 (10.6) | 1.657 | 0.427 | 5.242 | < 0.001 |\n| Negative | 40 (64.4) | 156 (72.2) | 295 (68.3) | - | - | - | |\n| Type of infertility | |||||||\n| Primary | 26 (33.8) | 9 (15) | 35 (25.5) | 0.128 | 0.241 | 1.136 | 0.597 |\n| Secondary | 11 (14.3) | - | 11 (8.9) | - | - | - | - |\n| History of infertility treatment | |||||||\n| Positive | 37 (48.1) | 9 (15) | 46 (33.6) | 0.138 | 0.272 | 1.157 | 0.502 |\n| Negative | 1 (1.3) | - | 1 (1.3) | - | - | - | - |\n| Premenstrual spottingb | 0.513 | 0.249 | 1.670 | 0.039 | |||\n| Positive | 50 (23.1) | 33 (15.3) | 83 (19.2) | ||||\n| Negative | 167 (79.9) | 183 (84.7) | 349 (80.8) | ||||\n| Pain in defecation | - | - | - | - | |||\n| Positive | 9 (4.2) | - | 9 (2.1) | ||||\n| Negative | 207 (95.8) | 216 (100) | 423 (97.9) |\naValues are expressed as mean ± SD or No. (%).\nbVariables that were significant at the 80% level showed a significant correlation with the response variable.\n| Variable | Coefficients | SD | OR | P Value |\n|---|---|---|---|---|\n| Age, y | 0.042 | 0.012 | 1.043 | < 0.001 |\n| Premenstrual spotting | 0.045 | |||\n| Positive | 0.654 | 0.259 | 1.936 | |\n| Negative | - | - | - | |\n| Number of live births | ||||\n| Positive | - | - | - | - |\n| Negative | 0.261 | 0.258 | 0.771 | 0.012 |\n| Constant value | -1.131 | 4.00 | 7.977 | 0.005 |\n| No. | Number of Middle Layers | Number of Nodes of the First Hidden Layer | Number of Nodes of the Second Hidden Layer | First Activity Subordinate | Second Activity Subordinate | Sum of Errors’ Squares | AUC | Incorrect Predictions, % |\n|---|---|---|---|---|---|---|---|---|\n| 1 | 2 | 11 | 7 | Hyperbolic tangent | Sigmoid | 36.77 | 0.911 | 16.6 |\n| 2 | 2 | 11 | 6 | Hyperbolic tangent | Sigmoid | 37.148 | 0.908 | 18.6 |\n| 3 | 2 | 11 | 5 | Hyperbolic tangent | Hyperbolic tangent | 38.843 | 0.911 | 17.6 |\n| 4 | 2 | 12 | 8 | Hyperbolic tangent | Sigmoid | 30.025 | 0.940 | 14.0 |\n| 5 | 2 | 12 | 7 | Hyperbolic tangent | Sigmoid | 36.735 | 0.907 | 16.9 |\n| 6 | 2 | 12 | 8 | Hyperbolic tangent | Sigmoid | 37.449 | 0.901 | 17.6 |\n| 7 | 2 | 11 | 6 | Hyperbolic tangent | Sigmoid | 34.635 | 0.911 | 16.6 |\n| 8 | 2 | 11 | 7 | Hyperbolic tangent | Sigmoid | 35.743 | 0.916 | 15.9 |\n| 9 | 1 | 9 | - | Sigmoid | Sigmoid | 36.837 | 0.905 | 15.6 |\n| Importance | Normalized Importance, % | |\n|---|---|---|\n| Number of live births | 0.183 | 53.2 |\n| Age | 0.343 | 99.8 |\n| Premenstrual spotting | 0.131 | 38.3 |\n| BMI | 0.343 | 100.0 |","source_license":"CC0","license_restricted":false}