Skip to main content

Table 1 Characterization of the sample and mean and standard deviation of outcomes according to demographic, socioeconomic, lifestyle, and sleep duration characteristics in adolescents (n = 1,268). São Luís, Maranhão, Brazil, 2016/2017

From: Association between sleep duration and cardiometabolic factors in adolescents

Variable   Glycemia
(mg/dL)
DBP
(mmHg)
SBP
(mmHg)
HDL-c
(mg/dL)
LDL-c
(mg/dL)
Cholesterol
total (mg/dL)
Triglycerides
(mg/dL)
  n (%) Mean (SD) Mean (SD) Mean (SD) Mean (SD) Mean (SD) Mean (SD) Mean (SD)
Total 1,268 91.8(15.9) 71.3 (7.5) 114.9 (12.3) 48.5(11.6) 89.0 (25.7) 156.0 (31.1) 93.6 (47.2)
Age (n = 1,268)   p = 0.327** p = 0.839* p = 0.011** p = 0.010** p = 0.171* p = 0.038* p = 0.986*
  18 years 1105(87.1) 91.9 (16.1) 71.4 (7.5) 115.2 (12.4) 48.2 (11.5) 88.5(25.2) 155.2(30.4) 93.3 (46.2)
  19 years 163 (12.9) 90.6 (1.2) 70.5 (7.2) 112.0 (11.6) 50.7 (11.9) 92.7 (28.7) 161.8 (35.1) 95.4 (53.6)
Gender (n = 1,268)    < 0.001* p = 0.030**  < 0.001*  < 0.001* p < 0.001** p < 0.001** p < 0.001**
  Male 638 (50.3) 92.7 (17.0) 72.2 (7.7) 121.4 (10.9) 45.0 (10.2) 85.9 (24.9) 150.6 (29.2) 99.7 (49.2)
  Female 630 (49.7) 90.8 (14.7) 70.3 (7.2) 108.2 (9.9) 52.1(11.8) 92.2 (26.1) 161.7(31.9) 87.2(44.2)
Adolescent years of study (n = 1,261)   p = 0.090* p = 0.042** p = 0.606** p = 0.207** p = 0.408** p = 0.094** p = 0.830
  No schooling at 11 years 1,202 (95.3) 92.0 (16.0) 71.2 (7.5) 114.9 (12.4) 48.4 (11.5) 88.9(25.5) 155.6 (31.1) 93.4 (47.3)
  12 or more 59(4.7) 87.6(11.3) 71.7(7.3) 114.1 (11.6) 50.3 (12.5) 91.8 (29.7) 162.7(31.1) 94.8 (44.4)
Skin Color (n = 1,261)   p = 0.107**** p = 0.175**** p = 0.213**** p = 0.034*** p = 0.107*** p = 0.177* p = 0.137****
  White 235 (18.6) 92.5 (15.2) 70.6 (7.0) 114.5 (11.6) 48.2(11.9) 89.9(28.0) 156.0(33.4) 93.1 (46.6)
  Black 202 (16.0) 89.6 (14.8) 71.3 (7.2) 114.9 (13.1) 50.8(12.8) 89.5(14.9) 159.2(31.1) 92.6 (51.7)
  Mixed race 824 (65.4) 92.1 (16.4) 71.4 (7.7) 114.9 (12.3) 48.0 (11.1) 88.7 (25.2) 155.3 (30.3) 93.9 (46.4)
Economic class (n = 1,110)   p = 0.367**** p = 0.536**** p = 0.703***** p = 0.483**** p = 0.150*** p = 0.087**** p = 0.069****
  A/B 308 (27.8) 90.4 (14.5) 70.8 (7.1) 115.0 (12.2) 49.0(11.2) 89.8(26.5) 157.5(31.7) 93.4 (45.3)
  C 552 (49.6) 91.6 (14.1) 71.3 (7.5) 115.1 (12.5) 48.7 (11.8) 88.0 (24.5) 154.6 (29.7) 92.3 (46.7)
  D/E 251 (22.6) 92.6 (15.2) 71.2 (7.3) 113.1(12.0) 48.5 (12.0) 91.1(26.8) 158.7(33.4) 95.0 (51.7)
Current works (n = 1,268)   p = 0.568** p = 0.242** p = 0.727** p = 0.909** p = 0.631** p = 0.811** p = 0.584**
  No 1,066 (84.1) 91.9 (16.2) 71.4 (7.6) 11.8 (12.4) 48.5(11.5) 88.9(25.7) 155.9(31.0) 93.2 (47.1)
  Yes 2,020 (15.9) 91.2 (14.6) 70.7 (7.2) 115.4(11.9) 48.6(11.8) 89.8(25.5) 156.5 (31.2) 95.3(47.8)
Alcohol consumption (n = 1,257)   p = 0.742* p = 0.906** p = 0.347** p = 0.705** p = 0.304** p = 0.896** p = 0.179**
  No 744 (59.1) 91.7 (14.8) 71.1 (7.5) 114.6 (12.1) 48.4(11.9) 89.7(25.6) 155.9(31.5) 91.3(45.4)
  Yes 513 (40.9) 91.8 (17.1) 71.5 (7.6) 115.3 (12.6) 48.7(1.1) 88.2(25.6) 156.2(30.3) 96.4 (48.0)
Smoking (n = 1,268)   p = 0.189** p = 0.704** p = 0.528* p = 0.127** p = 0.876** p = 0.512** p = 0.044**
  No 1,228 (96.9) 91.7 (14.6) 71.2 (7.5) 114.8 (12.2) 48.6 (11.5) 89.0 (25.6) 155.9 (30.9) 93.1 (47.3)
  Yes 40 (3.1) 94.3 (38.7) 72.0 (8.3) 116.9 (15.1) 45.7(11.7) 89.6(28.9) 159.2 (34.7) 108.3 (42.8)
Tertile physical activity (n = 1,268)   p = 0.148*** p = 0.113**** p = 0.297**** p = 0.710**** p = 0.522**** p = 0.009*** p = 0.585****
  1st tertile (< 15 min 50 s) 426 (33.6) 91.0 (15.9) 71.1 (7.2) 113.0(11.7) 48.6(11.6) 90.8(25.5) 157.7(30.5) 92.9 (46.6)
  2nd tertile (≥ 15 min 50 s and < 36 min 15 s) 427 (33.7) 92.1 (17.7) 71.1 (7.4) 114.5 (12.5) 49.3(11.7) 89.9(26.4) 157.8(33.2) 93.1 (48.6)
  3rd tertile (≥ 36 min 15 s) 415 (32.7) 92.3 (13.9) 71.5 (9.9) 117.2 (12.5) 47.5(11.3) 86.3(25.0) 152.4(29.2) 94.7 (46.5)
BMI (n = 1,253)   p = 0.664*** p = 0.120**** p = 0.077****  < 0.001*** p < 0.001***  < 0.001*** p < 0.001***
  Adequate 1,011 (80.7) 91.9 (16.6) 70.5 (7.3) 113.3 (11.6) 49.2(11.3) 87.2 (24.2) 153.8 (28.6) 87.8 (40.9)
  Overweight 190 (15.2) 91.7 (12.3) 73.4 (7.0) 120.7(12.6) 46.2(12.6) 94.3(27.7) 162.1 (35.3) 110.6 (56.6)
  Obesity 52 (4.1) 92.3 (14.3) 78.3 (8.7) 124.4 (14.0) 40.6(9.5) 103.0(35.0) 170.2(39.6) 132.3 (62.9)
Food ultra-processed (tertile) (n = 1,254)   p = 0.917*** p = 0.424**** p = 0.404**** p = 0.588**** p = 0.781**** p = 0.496**** p = 0.070****
  1st tertile 426 (34.0) 91.9 (16.7) 70.9 (7.6) 115.7 (12.5) 47.9(10.9) 88.5 (25.3) 154.7 (30.1) 93.4 (44.5)
  2nd tertile 396 (31.6) 92.0 (14.0) 71.4 (7.7) 115.3 (12.6) 48.8 (12.4) 88.2 (26.2) 156.1 (31.9) 94.0 (49.9)
  3rd tertile 432 (34.4) 16.8 (16.8) 71.4(7.2) 16.8 (16.8) 48.7 (11.4) 90.1(25.5) 157.2 (31.3) 93.3 (47.7)
Food in natura or minimaly processed (tertile) (n = 1,254)   p = 0.980*** p = 0.252**** p = 0.146*** p = 0.172**** p = 0.753**** p = 0.510**** p = 0.944***
  1st tertile 439 (35.0) 91.4 (12.9) 71.4(7.2) 113.9 (11.7) 48.9 (11.5) 90.4 (26.1) 157.8 (32.0) 94.4 (49.6)
  2nd tertile 384 (30.6) 92.6 (18.4) 71.2 (7.4) 114.8 (12.2) 48.6 (12.15) 87.6 (25.2) 155.2 (30.6) 93.8 (48.2)
  3rd tertile 431 (34.4) 91.6 (16.5) 71.1 (7.8) 116.1 (12.9) 48.0 (11.0) 88.9 (25.6) 154.8 (30.4) 92.5 (44.1)
Depression   p = 0.027* p = 0.152* p < 0.001* p = 0.113** p = 0.858** p = 0.307** p = 0.514**
  No 1.128(88.9) 92.2(16.3) 71.4(7.6) 115.4(12.5) 48.3(11.5) 89.0(25.5) 155.7(30.9) 93.3(47.3)
  Yes 140(11.1) 88.7(11.6) 70.2(6.6) 110.4(9.7) 50,0(12.1) 89.4(26.8) 158.6(32.0) 96.1(46.3)
Sleep duration (n = 1,268)   p = 0.857* p = 0.202** 0.001** p = 0.145** p = 0.036** p = 0.098** p = 0.980*
  ≥ 6 h 874 (68.9) 91.5 (14.2) 71.1 (7.5) 114.0 (12.5) 48.8 (11.4) 90.1 (26.2) 157.0(31.4) 92.6 (45.1)
  < 6 h 394 (31.1) 92.3 (19.2) 71.7 (7.5) 116.9(11.7) 47.8(11.9) 86.7 (24.4) 153.8 (30.3) 95.6 (51.6)
  1. Caption: SD Standard deviation, DBP Diastolic arterial pressure, SBP Systolic arterial pressure, LDL-c Low-density lipoprotein cholesterol, HDL-c high density lipoprotein cholesterol, *Wilcoxon rank Sum test, ** Student t test, *** Kruskal Wallis test, **** one-way ANOVA