Table 1.

95% CI for absolute and relative interobserver variabilities for per-section and summed area measurements of malignant pleural mesothelioma.

	Baseline scan			Follow-up scan
95% confidence interval	Lower bound	Upper bound	Range	Lower bound	Upper bound	Range
Absolute per-section (mm2)	−2200	2200	4400	−1268	1268	2536
Absolute summed (mm2)	−5627	5627	11 254	−3020	3020	6040
Absolute (% of mean), per-section	−86	86	172	−52	52	104
Absolute (% of mean), summed	−73	73	146	−41	41	82
Relative per-section (%)	−70	232	302	−51	103	154
Relative summed (%)	−71	240	311	−41	70	111