. 2013 Dec 30;64(618):e47–e53. doi: 10.3399/bjgp14X676456

Table 4.

Meta-regression with practice and non-practice-based studies

Outcome	Studies, n		P-value	Coefficient (95% CI)
Outcome	Practice-based^a	Non-practice-based	P-value	Coefficient (95% CI)
TC	4¹⁷^,²⁶^,²⁹^,³¹	3¹⁸^–²⁰	0.056	0.108 (−0.004 to 0.220)
SBP	4¹⁷^,²⁶^,²⁹^,³¹	3¹⁸^–²⁰	0.213	2.719 (−2.052 to 7.490)
DBP	4¹⁷^,²⁶^,²⁹^,³¹	3¹⁸^–²⁰	0.282	0.968 (−1.035 to 2.971)
BMI	3¹⁷^,²⁶^,²⁹	1¹⁸	0.386	0.350 (−1.019 to 1.719)

				OR (95% CI)
Smoking	5¹⁶^,²⁶^,²⁷^,²⁹^,³¹	3¹⁸^–²⁰	0.941	1.006 (0.830 to 1.221)
Total mortality	4²⁶^–²⁹	6¹⁹^–²⁴	0.712	0.967 (0.790 to 1.184)
CVD mortality	3²⁷^–²⁹	6¹⁹^–²⁴	0.087	0.738 (0.513 to 1.062)

BMI = body mass index. CVD = cardiovascular disease. DBP = diastolic blood pressure. SBP = systolic blood pressure. TC = total cholesterol.

Base case.