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. 2020 Jul 9;8(7):e16129. doi: 10.2196/16129

Table 3.

Comparison of clinical vector model performance for phase 1 and phase 2.

Clinical vector performance measures Model performance, % (95% CI)

  Phase 1 Phase 2 P valuea
Behavioral health services      

Sensitivity 70.2 (68.0, 72.5) 86.3 (83.1, 88.9) <.001

Specificity 78.5 (78.0, 78.9) 99.1 (98.5, 99.7) <.001

F1 score 56.6 (53.6, 58.9) 90.4 (87.4, 93.4) <.001

Precision (positive predictive value) 47.4 (44.2, 49.6) 95.0 (92.0, 98.3) <.001

AUROCb 88.3 (87.4, 89.2) 98.0 (97.6, 98.5) .01
Social work services      

Sensitivity 67.0 (63.4, 72.2) 72.4 (69.1, 75.6) .07

Specificity 79.6 (79.1, 79.8) 99.3 (99.2, 99.6) <.001

F1 score 48.6 (45.0, 52.5) 82.5 (79.7, 85.3) <.001

Precision (positive predictive value) 38.2 (34.8, 41.2) 95.8 (93.8, 97.8) <.001

AUROC 87.6 (86.1, 89.2) 93.7 (92.5, 95.0) .03
Dietitian counseling services      

Sensitivity 60.7 (56.5, 64.7) 73.6 (70.5, 77.0) .02

Specificity 73.2 (71.9, 74.9) 93.3 (90.8, 94.6) <.001

F1 score 61.5 (57.3, 66.0) 76.4 (73.3, 80.4) .001

Precision (positive predictive value) 62.2 (58.1, 67.4) 79.4 (76.4, 84.2) .02

AUROC 82.5 (81.5, 83.6) 91.5 (90.3, 92.6) .001
Other wraparound services      

Sensitivity 44.5 (42.7, 46.1) 59.2 (56.5, 63.8) .002

Specificity 78.5 (77.5, 79.3) 92.9 (89.7, 96.1) <.001

F1 score 43.2 (40.0, 45.7) 65.5 (62.9, 67.6) .01

Precision (positive predictive value) 41.9 (37.7, 45.2) 73.4 (70.5, 77.7) <.001

AUROC 77.2 (76.2, 78.1) 85.3 (84.4, 86.0) .02

aP values were calculated using confidence intervals [29].

bAUROC: area under the receiver operating characteristic curve.