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Table 3 Associations between whether at least one bike light was turned on and trip or personal characteristics, variables retained in adjusted analysis only, each variable on its own (unadjusted) and in multiple logistic regression (adjusted)

From: Personal and trip characteristics associated with safety equipment use by injured adult bicyclists: a cross-sectional study

 

At least one bike light turned on

  
 

Yes/No

(% Yes/% No)*

Unadjusted Odds Ratio (95% Confidence Interval)

Adjusted Odds Ratio (95% Confidence Interval)

Trip time of day

    

 Day

32/503

(6/94)

1 (reference)

1 (reference)

 Dawn or dusk

22/28

(44/56)

12.6 (6.49 – 24.6)

13.2 (6.42 – 27.2)

 Night

81/24

(77/23)

50.2 (30.0 – 90.2)

71.1 (35.8 – 141)

Trip weather type

    

 Clear sky

63/414

(13/87)

1 (reference)

1 (reference)

 Cloud cover

39/93

(30/70)

2.91 (1.83 – 4.61)

3.43 (1.83 – 6.41)

 Fog, mist, rain or snow

25/35

(42/58)

4.85 (2.72 – 8.65)

3.07 (1.33 – 7.10)

 Wind

3/11

(21/79)

2.03 (0.55 – 7.61)

1.75 (0.30 – 10.4)

Trip day of week

    

 Weekday

109/422

(21/79)

1 (reference)

1 (reference)

 Weekend

26/133

(16/84)

0.73 (0.45 – 1.19)

0.48 (0.24 – 0.97)

Sex

    

 Male

92/318

(22/78)

1 (reference)

1 (reference)

 Female

43/237

(15/85)

0.60 (0.40 – 0.91)

0.56 (0.32 – 0.99)

Helmet worn during trip

    

 No

33/179

(16/84)

1 (reference)

1 (reference)

 Yes

102/376

(21/79)

1.45 (0.93 – 2.25)

3.15 (1.61 – 6.16)

  1. Significant associations in bold.
  2. * Row percent.