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Table 1 Distribution of the study variables among participating adolescent school-students of Kolkata (N = 1652)

From: Exercise and eating habits among urban adolescents: a cross-sectional study in Kolkata, India

Continuous variables

Number

 

Mean (95%CIa)

Age in years

1652

 

14.2(14.1–14.2)

Categorical variables

Categories

Number

Percentage (95%CI)

Other socio-demographic factors

Gender of student

Female

885

53.6(51.2–56.0)

Male

767

46.4(44.0–48.8)

Socio-economic status

Lower

276

17.0(15.2–18.8)

Middle

1012

62.3(60.0–64.7)

Upper

336

20.7(18.7–22.7)

Family history of death due to CVDc

No

854

78.7(76.3–81.2)

Yes

231

21.3(18.9–23.7)

Level of knowledge regarding

CVD in general

Poor

677

41.0(38.6–43.4)

Average

603

36.5(34.2–38.8)

Good

372

22.5(20.5–24.5)

Blood pressure and its abnormalities

Poor

965

58.4(56.0–60.8)

Average

499

30.2(28.0–32.4)

Good

188

11.4(9.9–12.9)

Risk factors for CVDs

Poor

662

40.1(37.7–42.4)

Average

607

36.7(34.4–39.1)

Good

383

23.2(21.2–25.2)

Prevention of CVDs

Poor

856

51.8(49.4–54.2)

Average

565

34.2(31.9–36.5)

Good

231

14.0(12.3–15.7)

Healthy nutritional habits

Poor

847

51.3(48.9–53.7)

Average

524

31.7(29.5–34.0)

Good

281

17.0(15.2–18.8)

CVD and their prevention (Overall)

Poor

719

43.5(41.1–45.9)

Average

647

39.2(36.8–41.5)

Good

286

17.3(15.5–19.1)

Self-perception about

Own body size

Normal

961

58.7(56.4–61.1)

Underweight

288

17.6(15.8–19.5)

Overweight

387

23.7(21.6–25.7)

Obese

-

-

Own future risk of CVDs

No

1324

81.8(79.9–83.7)

Yes

295

18.2(16.3–20.1)

Own overall health

Good

993

60.5(58.1–62.8)

Average

573

34.9(32.6–37.2)

Poor

76

4.63(3.61–5.65)

Exercise

Moderate and Vigorous Activity

No

1171

71.0(68.8–73.2)

Yes

479

29.0(26.8–31.2)

Exercise

No Exercise

197

12.0(10.4–13.6)

Inadequate

965

58.8(56.4–61.2)

Adequate

479

29.2(27.0–31.4)

Dietary history

Meals taken/day

One/two

867

52.6(50.2–55.0)

Three

596

36.1(33.8–38.5)

> Three

186

11.3(9.8–12.8)

Snacks taken/day

≤ Three

806

48.9(46.5–51.4)

Four times

690

41.9(39.5–44.3)

> Four times

151

9.2(7.8–10.6)

Average frequency of food intake

Approximately appropriate

785

47.6(45.2–50.0)

More than appropriate

632

38.3(36.0–40.7)

Much more than appropriate

232

14.1(12.4–15.8)

Skipping meals

Never

736

44.8(42.4–47.2)

Sometimes

690

42.0(39.6–44.4)

Often

216

13.2(11.5–14.8)

Eating food in the street-shop/restaurant

Never

161

9.9(8.4–11.3)

Sometimes

870

53.3(50.9–55.7)

Often

601

36.8(34.5–39.2)

Overall eating habit

Poor

888

53.(51.4–56.2)

Average

472

28.6(26.4–30.8)

Good

292

17.7(15.8–19.5)

  1. a CI Confidence intervals
  2. b SES Socio-economic status of the families of the students
  3. c CVD Cardio-vascular diseases