Research Article

Smoking Is a Risk Factor of Coronary Heart Disease through HDL-C in Chinese T2DM Patients: A Mediation Analysis

Table 3

Odds ratio (95% confidence interval, CI) of stroke for smoking in participants.

N (%)Model AModel BModel C
OR (95% CI)OR (95% CI)OR (95% CI)

Smoking
None (reference)18 (12.9)111
Yes21 (15.1)1.20 (0.61–2.36)1.15 (0.55–2.53)1.25 (0.57–2.74)
0.6050.6730.573

CPD
None (reference)18 (12.9)111
≤20 (day)14 (13.2)1.02 (0.48–2.16)0.90 (0.38–2.09)0.94 (0.40–2.25)
>20 (day)7 (21.2)1.81 (0.69–4.78)2.68 (0.87–8.28)2.76 (0.89–8.53)
for trend0.3330.2280.186

Time of smoking
None (reference)18 (12.9)111
≤20 years10 (14.3)1.16 (0.50–2.66)1.88 (0.71–4.98)1.91 (0.70–5.21)
>20 years11 (16.9)1.42 (0.63–3.20)0.92 (0.37–2.30)1.01 (0.39–2.56)
for trend0.4060.9990.856

Cumulative smoking
None (reference)18 (12.9)111
≤20 pack-years7 (9.3)0.69 (0.28–1.74)0.75 (0.27–2.07)0.77 (0.27–2.21)
>20 pack-years14 (21.9)1.88 (0.87–4.07)1.66 (0.69–3.98)1.79 (0.73–4.39)
for trend0.1670.3140.255

Variables are included as continuous variables
None (reference)111
CPD1.02 (0.99–1.04)1.02 (1.00–1.05)1.02 (1.00–1.05)
0.180.090.051
None (reference)111
Smoking time (years)1.01 (0.99–1.03)1.00 (0.97–1.02)1.00 (0.97–1.02)
0.4210.6780.885
None (reference)111
Cumulative smoking (pack-years)1.01 (1.00–1.03)1.01 (0.99–1.03)1.01 (0.99–1.03)
0.0830.3850.336

Model A: crude model; Model B: adjusted for age, gender, origin, and occupation; Model C: adjusted for age, gender, origin, occupation, drinking, BMI, WC, and diabetes duration; and CPD: cigarettes per day.