Table 3 Association between days missed at work and Body Mass Index

BMI

  Normal Weight

1

1

1

1

-

-

-

-

  Underweight

1.18 (0.685)

[0.52–2.67]

1.33 (0.546)

[0.53–3.35]

1.13 (0.771)

[0.50–2.55]

1.34 (0.536)

[0.53–3.37]

  Overweight

1.14 (0.294)

[0.89–1.46]

0.97 (0.925)

[0.75–1.30]

1.14 (0.296)

[0.89–1.46]

1.01 (0.968)

[0.76–1.33]

  Obese

1.76 (0.001)

[1.26–2.46]

1.63 (0.012)

[1.12–2.38]

1.70 (0.002)

[1.21–2.39]

1.66 (0.009)

[1.13–2.44]

Time (years)

1.11 (0.005)

[1.03–1.20]

1.18 (0.003)

[1.06–1.32]

1.11 (0.013)

[1.02–1.20]

1.14 (0.037)

[1.001–1.28]

Gender

  Male

1

-

1

-

1

-

1

-

  Female

2.83 (< 0.001)

[2.24–3.56]

1.88 (< 0.001)

[1.44–2.44]

2.45 (< 0.001)

[1.90–3.16]

1.79 (< 0.001)

[1.35–2.38]

Age group

  18–24 years

1

-

1

-

1

-

1

-

  25–34 years

2.24 (0.005)

[1.27–3.94]

2.01 (0.024)

[1.09–3.68]

2.32 (0.004)

[1.32–4.08]

2.05 (0.021)

[1.12–3.76]

  35–44 years

2.00 (0.013)

[1.16–3.46]

1.58 (0.123)

[0.88–2.83]

2.09 (0.008)

[1.21–3.62]

1.60 (0.116)

[0.89–2.89]

  45–54 years

2.07 (0.011)

[1.18–3.60]

1.37 (0.303)

[0.75–2.50]

2.20 (0.006)

[1.26–3.53]

1.40 (0.274)

[0.76–2.58]

  55–64 years

1.79 (0.059)

[0.98–3.29]

0.98 (0.953)

[0.50–1.92]

1.91 (0.038)

[1.04–3.53]

0.98 (0.962)

[0.50–1.94]

  65 or more years

1.64 (0.340)

[0.59–4.57]

1.06 (0.921)

[0.32–3.53]

1.61 (0.363)

[0.58–4.49]

0.98 (0.969)

[0.29–3.24]

NUTS II

  Lisboa

1

-

1

-

1

-

1

-

  Porto

0.88 (0.421)

[0.64–1.20]

0.87 (0.447)

[0.62–1.24]

0.94 (0.715)

[0.66–1.24]

0.88 (0.460)

[0.62–1.24]

  Centro

1.02 (0.922)

[0.72–1.44]

1.04 (0.823)

[0.71–1.54]

1.02 (0.931)

[0.72–1.44]

1.01 (0.952)

[0.69–1.49]

  Alentejo

0.56 (0.038)

[0.32–0.97]

0.63 (0.144)

[0.34–1.17]

0.55 (0.034)

[0.32–0.96]

0.59 (0.089)

[0.32–1.08]

  Algarve

1.01 (0.982)

[0.52–1.95]

1.10 (0.806)

[0.52–2.34]

1.02 (0.947)

[0.53–1.99]

1.08 (0.837)

[0.51–2.31]

  Azores

0.57 (0.008)

[0.37–0.86]

0.60 (0.035)

[0.38–0.97]

0.58 (0.011)

[0.38–0.88]

0.59 (0.029)

[0.37–0.95]

  Madeira

0.54 (0.007)

[0.35–0.84]

0.52 (0.010)

[0.32–0.86]

0.57 (0.012)

[0.36–0.88]

0.51 (0.008)

[0.31–0.84]

Education level (years)

  9 or less years

1

-

1

-

1

-

1

-

  10–12 years

2.17 (< 0.001)

[1.64–2.85]

2.08 (< 0.001)

[1.44–3.00]

2.02 (< 0.001)

[1.82–3.51]

1.99 (< 0.001)

[1.46–2.71]

  13 or more years

2.67 (< 0.001)

[1.93–3.70]

2.10 (< 0.001)

[1.54–2.85]

2.53 (< 0.001)

[1.82–3.51]

2.06 (< 0.001)

[1.41–2.99]

Chronic Diseases

  Mental

-

2.63 (< 0.001)

[1.75–3.94]

-

2.49 (< 0.001)

[1.66–3.75]

  Rheumatic

-

2.94 (< 0.001)

[2.07–4.18]

-

2.98 (< 0.001)

[2.10–4.24]

  Cancer

-

6.58 (< 0.001)

[2.81–15.38]

-

6.43 (< 0.001)

[2.76–14.98]

  Allergies

-

1.35 (0.057)

[0.99–1.84]

-

1.33 (0.074)

[0.97–1.81]

  Gastrointestinal

-

1.67 (0.013)

[1.11–2.52]

-

1.69 (0.012)

[1.12–2.54]

  Lung disease

-

2.86 (0.003)

[1.44–5.67]

-

2.85 (0.003)

[1.43–5.64]

  Renal Colic

-

2.57 (< 0.001)

[1.52–4.36]

-

2.56 (< 0.001)

[1.52–4.34]

Alcohol

  Never

-

-

1

-

1

-

  Daily

-

-

0.50 (< 0.001)

[0.35–0.70]

0.63 (0.026)

[0.42–0.95]

  Occasionally

-

-

0.68 (0.003)

[0.53–0.87]

0.81 (0.137)

[0.61–1.07]

Smoking habits

  Never

-

-

1

-

1

-

  Daily

-

-

1.33 (0.042)

[1.01–1.75]

1.34 (0.061)

[0.99–1.82]

  Occasionally

-

-

0.55 (0.078)

[0.28–1.07]

0.77 (0.486)

[0.36–1.62]

  In the past

-

-

1.61 (0.011)

[1.12–2.33]

2.01 (0.003)

[1.26–3.21]

Regular Exercise

  No

-

-

1

-

1

-

  Yes

-

-

0.74 (0.008)

[0.60–0.92]

0.79 (0.070)

[1.26–3.21]