A retrospective cohort study on lifestyle habits of cardiovascular patients: how informative are medical records?

Table 3 Unhealthy lifestyle habits according to the last year's records versus LSQ (n = 209 patients); values are presented as n (%)

Lifestyle habit	Unhealthy in last year's record notes	Unhealthy in LSQ	P ^a, N = 209	X²,° N = 209
Smoking	20 (31)	29	0.20	1.480
Alcohol use	7 (83)	42	< 0.001	26.725
Physical activity	27 (54)	59	< 0.001	14.069
Eating habits	3 (97)	147	< 0.001	212.629

P = significance value; ^a = significance values based on chi-square tests; ° = degrees of freedom = 1
% = fraction underreported unhealthy habits in records compared to LSQ

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