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Table 1 Characterization of adolescents in the sample by capital, according to sociodemographic, reproductive, behavioral and nutritional variables, Porto Velho and Porto Alegre, 2013/2014 (n = 889)

From: Insulin resistance and associated factors in female adolescents from two capital cities in the north and south of Brazil

Characteristics (889)

n

Porto Velho (382)

n

Porto Alegre (507)

p-value

% (95% CI)

% (95% CI)

Sociodemographic characteristics

 Chronological age

  12–13 years

94

36.51 (34.62–38.45)

97

30.22 (28.24–32.27)

< 0.001

  14 years

74

19.83 (18.68–21.02)

117

17.75 (17.12–18.39)

  15–17 years

214

43.66 (42.19–45.14)

293

52.03 (50.47- 53.59)

 Ethnicity

  White

120

27.77 (23.14–32.92)

359

67.27 (58.5–74.97)

< 0.001

  Black

13

3.14 (1.8–5.41)

38

11.54 (7.31–17.74)

 

  Other

238

69.09 (63.27–74.37)

104

21.2 (15.88–27.7)

 

 Economic class

  A

22

6.51 (3.4–11.79)

76

17.36 (9.26–30.17)

0.019

  B

171

57.83 (47.84–67.22)

227

59.12 (50.54–67.18)

 

  C/D

93

35.66 (25.66–47.09)

89

23.52 (17.81–30.4)

 

Reproductive characteristics

 Age at menarche

  9–12 years

278

76.42 (71.88–80.43)

382

79.95 (75.44–83.81)

0.241

  13–16 years

104

23.58 (19.57–28.12)

125

20.05 (16.19–24.56)

 Time of menarche

  < 2 years

91

32.34 (28.36–36.59)

91

25.47 (20.01–31.83)

0.069

  ≥ 2 years

291

67.66 (63.41–71.64)

416

74.53 (68.17–79.99)

Behavioral characteristics

 Smoking

  Yes

71

17.4 (13.6–22)

147

30.08 (23.83–37.17)

0.001

  No

311

82.6 (78–86.4)

360

69.92 (62.83–76.17)

 Alcohol

  Yes

181

47.01 (42.06–52.02)

381

79.51 (72.78–84.92)

0.001

  No

173

52.99 (47.98–57.94)

97

20.49 (15.08–27.22)

 Screen hours

  < 2 h/day

177

54.5 (47.56–61.27)

133

31.21 (25.56–37.49)

< 0.001

  ≥ 2 h/day

172

45.5 (38.73- 52.44)

327

68.79 (62.51–74.44)

 Physical activity

  Active

156

44.16 (36.44–52.17)

186

34.34 (28.48–40.73)

0.053

  Inactive

205

55.84 (47.83–63.56)

301

65.66 (59.27–71.52)

Nutritional status

 Nutritional status (%)

  Low weight and normal weight

294

77.11 (69.17–83.49)

345

65.68 (58.59–72.13)

0.028

  Overweight/obesity

88

22. 89 (16.51–30.83)

162

34.32 (27.87–41.41)

 Waist circumference

  Normal

332

87.93 (81.66–92.26)

423

84.39 (80.17–87.85)

0.296

  Elevated

50

12.07 (7.74–18.34)

84

15.61 (12.15–19.83)

Diet

 

Mean (standard error)

 

Mean (standard error)

 

Energy (Kcal)

 

2238.617 (85.43)

 

1923.761 (60.83)

0.005

Omega-6: omega-3 ratio

 

8.21 (0.20)

 

8.97 (0.40)

0.099

Trans-fat

 

0.91 (0.77)

 

1.26 (0.63)

0.001

  1. Student t test, mean and standard error and chi-square, 95%CI. Smoking: yes = already experimented; Alcohol: yes = already experimented; Physical activity: inactive = 0–300 min/wk.; Screen hours: not recommended = more than 2 h/day; Nutritional status classification according to BMI-for-age z-score (WHO, [49]); Waist circumference; Altered blood glucose (IDF, [48]); Energy expressed by daily intake in Kcal, Omega-6: Omega-3 ratio and Trans-fat cutoff point established by the dietary reference intakes (DRI, [31]). Eco Class D: Corresponded to 1.04% of the total sample (2.21% of the sample in Porto Velho and 0.67% in Porto Alegre) Sample N: Ethnicity n = 872, economic class n = 678, alcohol n = 832, physical activity n = 848
  2. Statistically significant differences between capitals are in bold (p < 0.05)
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Diabetology & Metabolic Syndrome

ISSN: 1758-5996

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