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Table 1 Comparing the age, gender, FBG and serum lipid/lipoprotein between subjects with smoking and non-smoking habit, and among groups with different smoking quantity (n = 661)

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

Characteristics Smoking status Smoking dosage
  Smoker n = 273 Non-smoker n = 388 χ 2 ort P value Light n = 146 Medium n = 90 Heavy n = 37 χ 2 orF P value
Age (years) 93.37 ± 3.22 93.62 ± 3.47 0.944 0.346 93.52 ± 3.20 93.23 ± 3.13 93.11 ± 3.56 0.362 0.697
Gender a
(Male/Female) 145/128 71/317 87.88 ≤0.001* 65/81 58/32 22/15 9.567 0.008*
TG (mmol/L) 1.21 ± 0.56 1.23 ± 0.69 0.492 0.623 1.20 ± 0.52 1.24 ± 0.63 1.16 ± 0.56 0.327 0.721
TC (mmol/L) 4.05 ± 0.81 4.21 ± 0.87 2.403 0.017 4.07 ± 0.75 4.11 ± 0.90 3.82 ± 0.77 1.778 0.171
HDL (mmol/L) 1.54 ± 0.62 1.60 ± 0.56 1.224 0.222 1.49± 1.54± 1.52± 1.716 0.182
LDL (mmol/L) 2.21 ± 0.55 2.28 ± 0.63 1.443 0.149 2.23 ± 0.55 2.23 ± 0.57 2.06 ± 0.49 1.535 0.217
FBG (mmol/L) 4.43 ± 1.58 4.48 ± 1.36 0.389 0.697 4.39 ± 1.54 4.45 ± 1.53 4.58 ± 1.82 0.218 0.814
Abnormal Serum Lipid/Lipoprotein
TG 33/240 56/332 0.756 0.226 16/130 11/79 6/31 0.770 0.680
TC 24/249 51/337 3.019 0.049* 11/135 11/79 2/35 2.138 0.350
HDL 19/254 18/370 1.633 0.135 11/135 6/84 2/35 0.224 0.894
LDL 10/263 25/363 2.470 0.080 5/141 5/85 0/37 2.344 0.310
  1. Comparing the age, gender, FBG and Serum Lipid/Lipoprotein between subjects with smoking and non-smoking habit, and among groups with different smoking quantity, 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. * P < 0.05 ** P < 0.01. FBG, fasting blood glucose; HDL, high density lipoprotein; LDL, low density lipoprotein; TC: Total cholesterol; TG: Triglyceride.