Mid-term Body Mass Index increase among obese and non-obese individuals in middle life and deprivation status: A cohort study

Table 1 Baseline characteristics and completeness of follow-up (second screening). Significance levels from multiple regression models.

Baseline characteristic	Women (n = 21,976)			Men (n = 19,158)
	Initial screen only	Two screens	p	Initial screen only	Two screens	p
Mean age (years)	44.5	44.9	<0.001	44.3	44.7	<0.001
% current smokers	39.9	36.4	0.018	53.4	48.0	<0.001
% with SBP>140 mmHg	25.5	18.2	<0.001	33.2	24.8	<0.001
% with DBP>90 mmHg	15.3	9.4	*	23.9	17.0	*
% cholesterol > 6.5 mmol/l	25.5	22.6	0.019	36.7	29.8	<0.000
% BMI >30 kg/m ²	17.7	11.7	<0.000	15.9	11.9	0.001
% in the two most deprived groups (4 and 5)	43.6	37.3	<0.001**	42.7	36.8	<0.001**

SBP: Systolic Blood Pressure; DBP: Diastolic Blood Pressure
*Significant in multiple logistic regression model excluding SBP but omitted from presented model to avoid over-adjustment, as highly correlated with SBP.
** Deprivation group (quintile) entered as a continuous variable.

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