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Table 2 Comparing the age, gender, FBG and serum lipid/lipoprotein between subjects with history of smoking and non-smoking, and between subjects with different smoking cessation (n = 661)

From: Cigarette smoking and its association with serum lipid/lipoprotein among Chinese nonagenarians/centenarians

Characteristics With history of smoking Smoking cessation
  Yes n = 401 No n = 260 χ 2 ort P value Yes n = 128 No n = 273 χ 2 or MD P value
Age (years) 93.41 ± 3.29 93.67 ± 3.49 0.980 0.327 93.50 ± 3.45 93.37 ± 3.22 93.62 ± 3.47 0.944
Gender a
(Male/Female) 178/223 38/222 63.120 ≤0.001* 33/95 145/128 71/316 87.88
TG (mmol/L) 1.20 ± 0.63 1.26 ± 0.66 1.185 0.236 1.18 ± 0.75 1.21 ± 0.56 1.23 ± 0.69 0.492
TC (mmol/L) 4.11 ± 0.83 4.20 ± 0.88 1.333 0.183 4.24 ± 0.86 4.05 ± 0.81 4.21 ± 0.87 2.403
HDL (mmol/L) 1.55 ± 0.55 1.61 ± 0.64 1.301 0.191 1.57 ± 0.37 1.54 ± 0.62 1.60 ± 0.56 1.224
LDL (mmol/L) 2.24 ± 0.58 2.27 ± 0.63 0.663 0.508 2.21 ± 0.63 2.21 ± 0.55 2.28 ± 0.63 1.443
FBG (mmol/L) 4.49 ± 1.57 4.43 ± 1.25 0.483 0.630 4.59 ± 1.55 4.43 ± 1.58 4.48 ± 1.36 0.389
Hypertriglyceridemia 49/352 40/220 1.356 0.147 16/112 33/240 56/332 0.756
Hypercholesteremia 42/359 33/227 0.772 0.360 18/110 24/249 51/337 3.019
Lower HDL 25/376 12/248 0.782 0.240 6/122 19/254 18/370 1.633
Higher LDL 20/381 15/345 0.192 0.363 10/118 10/263 25/363 2.470
  1. * P < 0.05 ** P < 0.01 vs. Using χ2 or Fisher’s exact test (wherea an expected cell count was < 5) for categorical variables and unpaired Student’s t test for continuous variables. In the testing, a P value < 0.05 was considered to be statistically significant. FBG, fasting blood glucose; HDL, high density lipoprotein; LDL, low density lipoprotein; TC: Total cholesterol; TG: Triglyceride.