Table 1

Participant characteristics: comparisons according to study site

TotalLimaUrban PunoRural PunoTumbes
N=3238n=1052n=574n=581n=1031p-value*
Sociodemographics—n (%)
 Male1565 (48.3%)506 (48.1%)277 (48.3%)270 (46.5%)512 (49.7%)0.67
 Age, years—median (IQR)55.1 (45.3; 65.2)54.8 (45.5; 64.7)55.7 (45.3; 65.3)55.9 (45.8; 65.9)55.0 (44.9; 65.0)0.34
 Education level
  <7 years1492 (46.1%)454 (43.2%)91 (15.8%)374 (64.1%)573 (55.6%)<0.001
  7–11 years1056 (32.6%)416 (39.6%)156 (27.2%)172 (29.5%)312 (30.3%)
  ≥12 years690 (21.3%)181 (17.2%)327 (57.0%)37 (6.4%)145 (14.1%)
Socioeconomic Status (tertiles)
  Lowest1021 (31.5%)127 (12.1%)135 (23.5%)419 (72.1%)340 (33.0%)<0.001
  Middle1107 (34.2%)387 (36.8%)155 (27.0%)147 (25.3%)418 (40.5%)
  Highest1110 (34.3%)538 (51.1%)284 (49.5%)15 (2.6%)273 (26.5%)
Lifestyles—n (%)
 Daily smoking103 (3.2%)34 (3.2%)12 (2.1%)1 (0.2%)56 (5.4%)<0.001
 Heavy alcohol drinking172 (5.3%)58 (5.5%)37 (6.5%)17 (2.9%)60 (5.8%)0.03
 Leisure time and transport-related physical activity
  Lowest1031 (31.9%)201 (19.1%)122 (21.3%)149 (25.6%)559 (54.2%)<0.001
  Moderate1784 (55.1%)637 (60.6%)372 (65.0%)360 (61.9%)415 (40.3%)
  Highest421 (13.0%)213 (20.3%)78 (13.6%)73 (12.5%)57 (5.5%)
 Hours watching TV (2+ hours per day)1382 (42.7%)509 (48.4%)265 (46.2%)83 (14.3%)525 (50.9%)<0.001
 Fruits and vegetables intake (5+ servings per day)132 (4.1%)70 (6.7%)38 (6.6%)11 (1.9%)13 (1.3%)<0.001
Parental history—n (%)
 Hypertension among at least one of the parents683 (21.1%)192 (18.3%)120 (20.9%)25 (4.3%)346 (33.6%)<0.001
 Diabetes among at least one of the parents238 (7.4%)74 (7.0%)32 (5.6%)3 (0.5%)129 (12.5%)<0.001
Anthropometric measurements—n (%)
Body mass index
  Normal weight (BMI <25 kg/m2)953 (29.5%)243 (23.2%)135 (24.0%)317 (54.5%)255 (24.7%)<0.001
  Overweight (BMI ≥25–29.9 kg/m2)1409 (43.6%)471 (45.0%)278 (49.4%)206 (35.4%)450 (43.7%)
  Obesity (BMI ≥30 kg/m2)869 (26.9%)332 (31.7%)150 (26.6%)59 (10.1%)326 (31.6%)
Clinical Profile
 SBP (mm Hg)—mean (SD)117.6 (19.1)117.4 (18.8)112.2 (17.5)116.5 (17.3)121.5 (20.3)<0.001
 DBP (mm Hg)—mean (SD)73.4 (11.1)72.8 (11.2)71.8 (10.1)75.2 (10.1)74.0 (11.8)<0.001
 Fasting glucose (mg/dL)—mean (SD)98.2 (33.9)97.7 (33.2)96.6 (32.4)90.2 (21.3)103.6 (39.4)<0.001
 A1c (%)—mean (SD)6.0 (1.2)5.9 (1.1)6.0 (1.1)5.9 (0.8)6.2 (1.4)<0.001
Cardiometabolic condition—n (%)
Blood pressure
  Normal1799 (55.4%)589 (56.0%)394 (68.6%)327 (56.3%)481 (46.7%)<0.001
  Prehypertension809 (24.9%)251 (23.9%)101 (17.6%)182 (31.3%)273 (26.5%)
  Hypertension641 (19.7%)212 (20.1%)79 (13.8%)72 (12.4%)277 (26.9%)
Glucose metabolism disorder
  Normal2313 (74.2%)767 (74.4%)395 (76.7%)473 (87.5%)678 (65.7%)<0.001
  Prediabetes588 (18.8%)207 (20.1%)83 (16.1%)51 (9.4%)247 (24.0%)
  Diabetes217 (7.0%)57 (5.5%)37 (7.2%)17 (3.1%)106 (10.3%)
 Metabolic syndrome1465 (47.0%)505 (49.0%)246 (47.9%)150 (27.7%)564 (54.8%)<0.001
  • *p-values were calculated comparing study sites using one-way analysis of variance or Kruskal–Wallis test for numerical variables, and χ2 test for categorical variables.

  • A1c, glycated haemoglobin; BMI, body mass index; DBP, diastolic blood pressure; SBP, systolic blood pressure. Results may not add up due to missing values.