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Table 4 Binary logistic regression analyses of 6-months postoperative analgesics consumption by preoperative anxiety

From: Anxiety and its predictive value for pain and regular analgesic intake after lumbar disc surgery - a prospective observational longitudinal study

A. Analgesics consumption by presence versus absence of preoperative anxiety a (n = 90)

 

Odds ratio of analgesics consumption (95% confidence interval)

P value

Preoperative anxiety (yes/no a)

1.03 (.38–2.78)

.96

Age (years)

1.01 (.98–1.04)

.66

BMI (points)

1.12 (1.00–1.26)

.06

Sex (male)

.93 (.35–2.50)

.89

Preoperative pain intensity

1.47 (1.13–1.89)

.00*

Chronic pain (yes/no b)

1.10 (.39–3.12)

.85

Intercept

.00 (−)

.00

B. Analgesics consumption by one standard deviation (SD) of preoperative anxiety (n = 90)

 

Odds ratio of analgesics consumption (95% confidence interval)

 

Preoperative anxiety (one SD)

.79 (.45–1.40)

.42

Age (years)

1.01 (.95–1.04)

.72

BMI (points)

1.11 (.99–1.25)

.07

Sex (male)

1.00 (.37–2.73)

1.00

Preoperative pain intensity

1.50 (1.15–1.96)

.00*

Chronic pain (yes/no b)

1.15 (.40–3.27)

.79

Intercept

.00 (−)

.00

  1. a Generalized Anxiety Disorder 7-Item Scale: > 5 = preoperative anxiety: yes
  2. b Preoperative pain duration > 6 months