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Table 1 Weight classification at baseline and year five (including imputed) for men. Values are expressed as frequencies and percent of age group total

From: Changes in body mass index in Canadians over a five-year period: Results of a prospective, population-based study

Baseline Age

Time

Sample Size*

Underweight

Normal Weight

Overweight

Obese Class I

Obese Class II

Obese Class III

25 – 34

Baseline

Year 5

187

187

2 (1.1)

1 (0.5)

85 (45.5)

70 (37.4)

78 (41.7)

82 (43.9)

18 (9.3)

25 (13.4)

3 (1.6)

7 (3.7)

1 (0.5)

2 (1.1)

35 – 44

Baseline

Year 5

205

205

2 (1.0)

1 (0.5)

70 (34.2)

53 (25.9)

97 (47.3)

106 (51.7)

28 (13.7)

34 (16.6)

5 (2.4)

6 (2.9)

3 (1.5)

5 (2.4)

45 – 54

Baseline

Year 5

564

565

1 (0.2)

3 (0.5)

157 (27.8)

145 (25.7)

288 (51.1)

277 (49.0)

89 (15.8)

104 (18.4)

25 (4.4)

31 (5.5)

4 (0.7)

5 (0.9)

55 – 64

Baseline

Year 5

609

608

2 (0.3)

2 (0.3)

135 (22.2)

132 (21.7)

317 (52.1)

308 (50.7)

125 (20.5)

129 (21.2)

26 (4.3)

33 (5.4)

4 (0.7)

4(0.7)

65 – 74

Baseline

Year 5

705

705

3 (0.4)

3 (0.4)

197 (27.9)

220 (31.2)

361 (51.2)

344 (48.8)

127 (18.0)

117 (16.6)

11 (1.6)

17 (2.4)

6 (0.9)

4 (0.6)

75 +

Baseline

Year 5

302

302

2 (0.7)

6 (2.0)

117 (38.7)

137 (45.4)

143 (47.4)

116 (38.4)

32 (10.6)

36 (11.9)

6 (2.0)

5 (1.7)

2 (0.7)

2 (0.7)

  1. * Baseline and year 5 values are not always identical due to rounding in the imputation process.
  2. Underweight = BMI<18; Normal weight = BMI 18.5–24.99; Overweight = BMI 25.0–29.99; Obese Class I = BMI 30.0–34.99; Obese Class II = BMI 35.0–39.99; Obese Class III = BMI ≥ 40.0