Author Smoking Periodontitis Preopearative
antibiotics 		Rheumatologic condition Diabetes Osteoporosis Immunosuppressive therapy
Astrand et al. [41] Excluded > 20/day
(7 patients < 20/day) 		Excluded Yes Excluded Excluded Excluded Excluded
Moberg et al. [42] Excluded Excluded Not specified Excluded Excluded Excluded Excluded
Ravald et al. [43] 8 patients Apparently excluded Not specified 9 patients 5 patients No 8 patients
Renvert et al. [44] 16 patients current and past Included Not specified 0 patients 0 patients 3 patients Asthma 3, bronchitis 1, allergy 2 patients
Polizzi et al. [45] Included 55.2%;
previous 7.3% 		1% Not specified Excluded 2.1% 1% 1%
Vandeweghe et al. [46] 5 patients Excluded Not specified Excluded Excluded Excluded Excluded
de Araújo Nobre and Malo [47] Smoker 1.1%;
ex-smoker 71.9% 		60.5% Not specified 10.7% 9.7% 0 % 2%