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Table 7 Interpretability evidence of the PROMs

From: A systematic review of the measurement properties of patient reported outcome measures used for adults with an ankle fracture

Article and PROM

Distribution of total scores in study population

Percentage of missing total scores

Percentage of missing items

Floor and Ceiling Effects (Interpretability)

Zelle et al. (2017)* AAOS

Normal distribution following Shapiro-Wilks Test -no Mean (±) provided.

Missing total scores 83 of 100 in first test and 63 of 100 in re-test.

No data reported on items missing.

Not reported

McPhail et al. (2014)* A-FORM

Not reported for questionnaire in final format

Not reported

Not reported for questionnaire in final format

Not reported

Olerud and Molander (1984) OMAS

Not reported

Not reported

Not reported

Not reported

Garratt et al. (2018) OMAS

75.62 (±24.07) - No information on distribution

1.6% missing

17.3% of respondents missed at least one item. “Jumping” most commonly missed item (6.2%).

Not reported

Buker et al. (2017)* OMAS

72.58 (±23.27) - No information on distribution

Not reported

Not reported

Not reported

Turhan et al. (2017)* OMAS

74.1 (±23.7) - No information on distribution

Not reported

Not reported

Floor - 0%

Ceiling - 27-29%

  1. Key: * = * = Articles were assessed by second reviewer for risk of bias and data extraction