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. Author manuscript; available in PMC: 2020 Jul 31.
Published in final edited form as: Am J Emerg Med. 2018 Dec 6;37(9):1681–1685. doi: 10.1016/j.ajem.2018.12.007

Table 2.

Unadjusted odds of receiving a chest X-ray, or a prescription for a systemic corticosteroid or cough suppressant.

Chest X-ray
Systemic corticosteroid
Cough suppressant
ORa 95% CI p-Value ORa 95% CI p-Value ORa 95% CI p-Value
Variable
Demographics and social factors
 Sex
  Female 1.00 Reference 1.00 Reference 1.00 Reference
  Male 1.71 (0.77–3.82) 0.189 1.11 (0.48–2.55) 0.816 1.81 (0.67–4.89) 0.246
 Age
  <60 years old 1.00 Reference 1.00 Reference 1.00 Reference
  ≥60 years old 2.35 (0.90–6.13) 0.080 1.11 (0.40–3.13) 0.842 3.17 (0.69–14.52) 0.138
 Race
  Otherc 1.00 Reference 1.00 Reference 1.00 Reference
  White, non-Hispanic 3.59* (1.15–11.15) 0.027 0.84 (0.33–2.11) 0.707 2.84* (1.14–7.09) 0.025
 Ethnicity
  Non-Hispanic 1.00 Reference 1.00 Reference 1.00 Reference
  Hispanic 0.30 (0.04–2.50) 0.264 3.24 (0.38–27.27) 0.280 0.45 (0.10–2.03) 0.300
 Income
  >$75k 1.00 Reference 1.00 Reference 1.00 Reference
  <$25k 1.04 (0.30–3.61) 0.586 1.40 (0.41–4.74) 0.679 0.38 (0.11–1.30) 0.114
  $25k–$49k 1.18 (0.43–3.22) 0.763 1.23 (0.47–3.23) 0.895 0.97 (0.30–3.09) 0.392
  $50k–$74k 2.36 (0.86–6.57) 0.076 1.11 (0.40–3.11) 0.872 0.69 (0.21–2.24) 0.941
 Education
  College graduate 1.00 Reference 1.00 Reference 1.00 Reference
  No education 1.72 (0.26–11.62) 0.692 0.58 (0.09–3.92) 0.620 0.65 (0.06–6.84) 0.952
  High school graduate 1.58 (0.58–4.31) 0.619 1.02 (0.36–2.91) 0.599 0.62 (0.18–2.16) 0.984
  Some college 1.06 (0.43–2.65) 0.565 0.77 (0.32–1.90) 0.864 0.36 (0.12–1.03) 0.170
 Current smoker
  Never or former 1.00 Reference 1.00 Reference 1.00 Reference
  Current 1.30 (0.54–3.16) 0.559 1.81 (0.67–4.89) 0.246 0.83 (0.31–2.21) 0.708
Self-reported signs and symptomsb
 Trouble sleeping 6.62 (0.77–49.18) 0.086 1.02 (0.29–3.54) 0.976 0.26 (0.03–2.11) 0.209
 Cough >21 days 3.03* (1.20–7.67) 0.019 0.62 (0.24–1.58) 0.316 1.46 (0.45–4.71) 0.526
 Dyspnea 2.64* (1.12–6.22) 0.027 0.96 (0.43–2.10) 0.908 0.90 (0.38–2.16) 0.815
 Chills or sweats 2.37* (1.08–5.17) 0.031 1.54 (0.72–3.33) 0.269 0.68 (0.29–1.58) 0.366
 Felt warm or feverish 2.21 (0.98–5.01) 0.056 0.79 (0.36–1.73) 0.552 0.62 (0.26–1.51) 0.293
 Wheezing or chest sounds 2.18 (0.92–5.52) 0.076 1.90 (0.86–4.17) 0.110 0.57 (0.22–1.46) 0.238
 Paroxysmal cough 1.77 (0.65–4.83) 0.260 0.76 (0.29–1.98) 0.569 0.54 (0.17–1.71) 0.291
 Headache 1.48 (0.57–3.84) 0.423 0.71 (0.27–1.85) 0.482 0.21* (0.05–0.95) 0.042
 Sputum production 1.37 (0.57–3.29) 0.486 0.50 (0.20–1.28) 0.150 0.86 (0.33–2.27) 0.767
 Runny nose 1.15 (0.47–2.79) 0.764 0.59 (0.23–1.53) 0.279 0.76 (0.29–2.16) 0.640
 Post-tussive vomiting 1.09 (0.49–2.45) 0.830 1.23 (0.54–2.82) 0.629 1.23 (0.49–3.10) 0.659
 Red or watery eyes 0.92 (0.43–1.98) 0.838 1.35 (0.63–2.90) 0.440 0.62 (0.26–1.47) 0.275
 Sneezing 0.77 (0.35–1.68) 0.510 1.62 (0.74–3.53) 0.226 0.62 (0.25–1.55) 0.308
Clinician recorded signsb
 Heart rate (≥100/min) 1.23 (0.45–3.37) 0.689 4.70* (1.03–21.37) 0.046 0.84 (0.28–2.56) 0.761
 Chest sounds (any) 1.97 (0.91–4.26) 0.086 0.76 (0.35–1.67) 0.492 2.11 (0.82–5.42) 0.123
 Respiratory rate (≥20/min) 1.35 (0.49–3.74) 0.565 1.77 (0.55–5.74) 0.341 1.10 (0.33–3.62) 0.879
 Temperature (>37.7 °C) 7.08 (0.71–70.40) 0.095 1.32 (0.13–13.13) 0.812 0.27 (0.04–2.04) 0.206
Chest sounds
 Normal 1.00 Reference 1.00 Reference 1.00 Reference
 Wheezes 2.66 (1.02–6.97) 0.388 2.62* (0.71–9.70) 0.014 1.33 (0.44–4.02) 0.508
 Crackles 1.04 (0.33–3.24) 0.212 0.35 (0.13–0.99) 0.124 6.63 (0.83–52.81) 0.133
 Wheezes and crackles 4.35 (0.68–27.94) 0.230 0.26 (0.04–1.68) 0.168 1.47 (0.16–13.95) 0.776
Continuous variables
Age, years 1.02 (0.99–1.04) 0.178 1.01 (0.98–1.03) 0.553 1.03* (1.00–1.06) 0.029
Days coughing 1.03 (0.99–1.06) 0.160 0.99 (0.96–1.03) 0.575 1.01 (0.97–1.06) 0.609
Heart rate per minute 1.01 (0.99–1.04) 0.454 1.02 (0.99–1.05) 0.149 0.98 (0.95–1.00) 0.095
Respiratory rate per minute 1.08 (0.91–1.29) 0.370 0.99 (0.83–1.19) 0.967 0.98 (0.80–1.12) 0.815
Temperature, Celsius 1.64 (0.66–4.06) 0.287 1.14 (0.44–2.95) 0.782 0.51 (0.19–1.35) 0.174

CI = confidence interval.

a

Unadjusted odds ratio: probability modeled patient received a chest X-ray, systemic corticosteroid or cough suppressant.

b

Reference value is not having sign or symptom.

c

African-American, Asian, White Hispanic, or Hispanic only (race not selected).

*

Statistically significant p-value <0.05.