Table 1

Characteristics of cancer cases and matched controls

CharacteristicsControls (N=918)Cases (N=306)P value
Demographic characteristics
 Age (years)*58 (52–64)58 (52–64)
 Sex*
  Male360 (40.0)120 (40.0)
  Female540 (60.0)180 (60.0)
 Living place0.738
  Urban377 (41.1)129 (42.2)
  Rural541 (58.9)177 (57.8)
Socioeconomic status
 Education0.864
  Below primary school454 (49.5)144 (47.1)
  Primary school187 (20.4)68 (22.2)
  Middle school181 (19.6)60 (19.6)
  High school and above96 (10.5)34 (11.1)
 Income21 000 (4320–44 850)19 463 (4320–47 801)0.936
Psychosocial activity
 CESD (Center for Epidemiologic Studies Depression) score7.0 (3.9–13.0)8.0 (4.0–13.2)0.136
 Social activities443 (48.3)137 (44.8)0.29
 Marital status0.794
  Partnered814 (88.7)273 (89.2)
  Single104 (11.3)33 (10.8)
 Cognitive score14 (10–17)14 (10–17)0.491
Health behaviours
 Smoking247 (26.9)91 (29.7)0.337
 Drinking194 (21.1)65 (21.2)0.968
 Sleep duration6.0 (5–8)6.0 (5–7.5)0.103
Biochemical indexes
 hsCRP (mg/L)1.9 (0.7–5.7)1.9 (0.7–5.7)0.237
 Glycosylated haemoglobin (%)5.2 (4.9–5.5)5.2 (4.8–5.5)0.716
 Total cholesterol (mg/dL)192.5 (167.4–217.0)193.7 (167.0–214.9)0.917
 HDL-C (mg/dL)49.5 (40.6–59.9)48.3 (38.2–59.9)0.31
 LDL-C (mg/dL)115.2 (93.6–139.2)114.0 (92.7–136.5)0.395
 Triglycerides (mg/dL)108.9 (76.1–167.3)112.0 (75.6–174.3)0.61
 Glucose (mg/dL)102.6 (93.6–117.0)104.9 (93.6–120.8)0.205
 Blood urea nitrogen (mg/dL)15.2 (12.4–18.3)15.6 (12.9–18.7)0.129
 Creatinine (mg/dL)0.7 (0.6–0.9)0.7 (0.6–0.9)0.25
 Uric acid (mg/dL)4.3 (3.6–5.2)4.4 (3.6–5.3)0.283
 Cystatin C (mg/dL)1.0 (0.8–1.1)1.0 (0.8–1.1)0.342
  • Data presented as frequency (%) or median (IQR).

  • *Represents the matching variable.

  • HDL-C, high-density lipoprotein cholesterol; hsCRP, high-sensitivity C reactive protein; LDL-C, low-density lipoprotein cholesterol.