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Table 1 Odds ratios for participation according to study characteristics

From: Reporting participation rates in studies of non-pharmacological interventions for patients with chronic obstructive pulmonary disease: a systematic review

Variable

Odds ratio

(95% confidence interval)

P

 

Year

0.99

(0.92, 1.08)

0.891

 

Quality score

0.85

(0.65, 1.10)

0.215

 

Exercise intervention

1.55

(0.47, 5.07)

0.470

 

Group intervention

  

0.506

(trend)

 Individual

1.00

-

  

 Combination

0.17

(0.03, 0.81)

  

 Group

0.60

(0.17, 2.11)

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