Validation of self-reported cardiovascular problems in childhood cancer survivors by contacting general practitioners: feasibility and results

Table 2 Agreement between answers of general practitioners and survivor’s self-reports (n = 128)

	++	+-	-+	--	P_o	P_pos	P_neg	κ¹	95% CI
Hypertension	15	17	3	93	84.4	60.0	90.3	0.51	(0.33–0.69)
Arrhythmia	15	23	4	86	78.9	52.6	86.4	0.41	(0.24–0.58)
Congestive Heart Failure	5	12	4	107	87.5	38.5	93.0	0.32	(0.07–0.57)
Coronary Heart Disease	2	13	3	110	87.5	20.0	93.2	0.15	(-0.08-0.38)
Stroke	4	0	2	122	98.4	80.0	99.2	0.79	(0.51-1.00)
Thrombosis	5	6	1	116	94.5	58.8	97.1	0.56	(0.27–0.85)
Valvular problems	7	14	2	105	87.5	46.7	92.9	0.41	(0.18–0.64)

Abbreviations: CI, confidence interval; GP, general practitioner; κ, kappa; n, number; ++, problem reported by survivor and GP; +-, problem reported by survivor only; -+, problem reported by GP only; --, problem neither reported by GP nor by survivor; P_neg, proportion of observed negative agreement; P₀, proportion of observed total agreement; P_pos, proportion of observed positive agreement; 95% CI, 95% confidence interval of κ
¹Level of agreement indicated by κ: <0.4 poor, 0.41–0.60 moderate, 0.61–0.80 good, > 0.8 excellent

ISSN: 2731-4553