Table 2. Coefficients and HRs (95% CI) of models and values of risk scores for predicting incident diabetes in the exploration cohort using the Cox proportional hazards model.

	Concise score		Accurate score		Score
	HR (95% CI)	Coefficient	HR (95% CI)	Coefficient
Age (years)
18–29	Ref.		Ref.		0
30–39	2.03 (1.61–2.56)	0.71	1.74 (1.38–2.18)	0.55	6
40–49	3.26 (2.63–4.05)	1.18	2.66 (2.15–3.30)	0.98	10
50–59	3.20 (2.58–3.96)	1.16	2.59 (2.09–3.21)	0.95	10
60–69	3.28 (2.62–4.10)	1.19	2.90 (2.32–3.62)	1.06	11
≥70	3.16 (2.48–4.03)	1.15	2.94 (2.30–3.75)	1.08	11
Gender (Men)	1.34 (1.23–1.44)	0.29	1.14 (1.05–1.23)	0.13	2
BMI (kg/m2)
<24.0	Ref.		Ref.		0
24.0–28.0	1.68 (1.56–1.81)	0.52	1.44 (1.33–1.55)	0.36	4
≥28.0	2.68 (2.48–2.91)	0.99	2.08 (1.91–2.25)	0.73	9
Family history of diabetes	1.66 (1.48–1.86)	0.51	1.45 (1.29–1.64)	0.37	4
Education (high school or below)	1.34 (1.16–1.55)	0.29	1.38 (1.20–1.60)	0.32	3
Blood pressure (mmHg)
SBP < 120 or DBP < 80	Ref.		Ref.		0
120 ≤ SBP < 140 or 80 ≤ DBP < 90	1.25 (1.14–1.38)	0.22	1.17 (1.06–1.29)	0.16	2
SBP ≥ 140 or DBP ≥ 90 or using anti-hypertensive drugs	1.62 (1.47–1.78)	0.48	1.37 (1.24–1.51)	0.31	4
Resting heart rate (bpm)
<70	Ref.		Ref.		0
70–79	1.16 (1.08–1.25)	0.15	1.07 (0.99–1.15)	0.07	1
80–89	1.36 (1.25–1.49)	0.31	1.15 (1.06–1.25)	0.14	2
≥90	1.77 (1.58–1.98)	0.57	1.26 (1.13–1.42)	0.23	4
FPG (mmol/L)
<5.6			Ref.		0
5.6–6.1			2.94 (2.73–3.16)	1.08	11
6.1–6.9			7.05 (6.59–7.55)	1.95	20
TG ≥ 1.70 mmol/L or using lipid-lowering drugs			1.41 (1.33–1.49)	0.34	3
AUC of the risk scores	0.67		0.77

Key: BMI – body mass index; SBP – systolic blood pressure; DBP – diastolic blood pressure; FPG – fasting plasma glucose; TG – Triglyceride; AUC – area under the receiver operating characteristic curve.