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Table 5 Hazard ratios (HR) for early medical discharge from military service by health behaviour variables at baseline.

From: Low physical fitness is a strong predictor of health problems among young men: a follow-up study of 1411 male conscripts

Health behaviour

Category

Total number

(% of

discharged)

HR for

discharge

(n = 133) *

HR for

discharge

(n = 133) **

Smoking habits

Never smoked regularly

735 (7)

1 (Referent)

1 (Referent)

 

Has smoked regularly

650 (12)

1.6 (1.2-2.3)

1.3 (0.8-1.9)

Use of alcohol

< 1 time per month

254 (13)

1 (Referent)

1 (Referent)

 

1-2 times per week

894 (8)

0.6 (0.4-0.9)

0.5 (0.3-0.8)

 

≥ 3 times per week

240 (11)

0.8 (0.5-1.4)

0.5 (0.3-1.0)

Frequency of drunkenness

< 1 time per week

1075 (9)

1 (Referent)

1 (Referent)

before military service

≥ 1 time per week

313 (12)

1.4 (1.0-2.1)

1.1 (0.7-1.8)

Agrees that soldier needs

Yes

902 (9)

1 (Referent)

1 (Referent)

good physical fitness

No

487 (9)

1.1 (0.7-1.5)

0.8 (0.5-1.1)

Sweating exercise

≥ 3 times per week

438 (6)

1 (Referent)

1 (Referent)

(Brisk leisure time sport)

1-2 times per week

415 (8)

1.4 (0.8-3.8)

0.9 (0.5-1.6)

 

Only leisured exercise

257 (12)

2.2 (1.3-3.8)

1.2 (0.7-2.1)

 

No physical exercise

278 (15)

2.7 (1.7-4.5)

1.2 (0.7-2.2)

Participates in individual

Yes, at least sometimes

954 (9)

1 (Referent)

1 (Referent)

aerobic sports

No

431 (10)

1.2 (0.8-1.7)

0.9 (0.6-1.3)

Belongs to a sports club

Yes, active member

206 (2)

1 (Referent)

1 (Referent)

 

No, but former member

802 (9)

4.9 (1.8-13.4)

3.7 (1.5-16.0)

 

No, never member

375 (14)

7.4 (2.7-20.4)

4.9 (1.2-11.6)

Participates in

Yes

180 (4)

1 (Referent)

1 (Referent)

competitive sports

No

1206 (10)

2.7 (1.3-5.8)

1.0 (0.4-2.5)

Last degree in school

Good or excellent

1101 (8)

1 (Referent)

1 (Referent)

Sports

Poor or fair

286 (14)

1.8 (1.2-2.5)

0.9 (0.5-1.4)

Participates in ball games

Yes

950 (8)

1 (Referent)

1 (Referent)

 

No

438 (13)

1.7 (1.2-2.4)

1.2 (0.8-1.8)

  1. Variable distribution was charted in 1411 male conscripts during the first week of military service and discharge outcomes were registered during the following 6-month military service. Statistically significant findings are indicated with bold type.
  2. * Adjusted for age (univariate)
  3. ** Adjusted for age, company, smoking (previous or current smoker), alcohol intake, baseline medical conditions (sports injury during last month, sum factor of earlier musculoskeletal symptoms during the last month before entering the military, chronic impairment or disability due to prior musculoskeletal injury, chronic disease, regular medication), school success (educational level and grades combined), urbanisation level of the place of residence, participating in ball games, last degree achieved in school sports, physical activity during the previous 3 months before entering the military, self-assessed health, belonging to a sports club and participation in competitive sports (17 adjusting variables).