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Table 1 Anthropometric, demographic and behavioural characteristics of workers at two underground mines by mean* hydration status (n=83)

From: Hydration status of underground miners in a temperate Australian region

Measure

Category

Hydrated n (%)

Dehydrated n (%)

Age (years)

18-29

9 (26.5)

5 (10.2)

30-49

17 (50.0)

30 (61.2)

50-69

5 (14.7)

4 (8.2)

 

Incomplete

3 (8.8)

10 (20.4)

Distance from home to work (km)

0-39

18 (52.9)

25 (51.0)

40-99

11 (32.4)

14 (28.6)

≥100

2 (5.9)

0 (0.0)

 

Incomplete

3 (8.8)

10 (20.4)

Most common drink at work

Water

29 (85.3)

41 (83.7)

Other

2 (5.9)

0 (0.0)

 

Incomplete

3 (8.8)

8 (16.3)

Body mass index (kg/m 2 ) **

Normal

4 (11.8)

4 (8.2)

Overweight

20 (58.8)

24 (49.0)

 

Obese

10 (29.4)

21 (42.9)

Waist circumference (cm)

Healthy range

16 (47.1)

17 (34.7)

Risk range

13 (38.2)

12 (24.5)

 

High risk range

5 (14.7)

20 (40.8)

  1. *Average of pre-shift and post-shift USG result: Hydrated <=1.020, Dehydrated >1.020.
  2. All category ranges are for adult males.
  3. **BMI ranges: Normal (18.50-24.99); Overweight (25.00-29.99); Obese (≥30.00).
  4. Waist circumference ranges: Healthy range (<94); Risk range (94–102); High risk range (>102).