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Table 9 Snuff use and endpoints relevant to dental caries and tooth loss – evidence from Sweden

From: Systematic review of the relation between smokeless tobacco and non-neoplastic oral diseases in Europe and the United States

Study Endpoint Time of exposure Statistic Exposeda Unexposeda Summary of statistical testsb
Rolandsson 2005 [20] Teeth present Not known Mean 27.3 26.9 No significant difference
Bergström 2006 [11] Teeth present Current Median 29 28 No significant difference
Bergström 2006 [11] Teeth present Former Median 28 28 No significant difference
Rolandsson 2005 [20] Filled teeth Not known % any - - OR 1.91 (0.76–4.79)
Rolandsson 2005 [20] Filled teeth Not known Mean - - No significant difference
Hirsch 1991 [9] Decayed, missing and filled teeth Not known Mean - - Increased in users (p < 0.001)
Hirsch 1991 [9] Decayed proximal surfaces Not known Mean - - No significant difference
Hirsch 1991 [9] Decayed and filled proximal surfaces Not known Mean - - Increased in users (p < 0.001)
Hirsch 1991 [9] Initially decayed proximal surfaces Not known Mean - - Increased in users (p < 0.001)
  1. a In the Rolandsson 2005 [20] study, snuff use was compared with snuff non-use; in the Bergström 2006 [11] study, current or former use was compared with never use; in the Hirsch 1991 [9] study, snuff use was compared with no tobacco use
  2. b All statistical tests are unadjusted for any potential confounding variable. Where necessary ORs and 95% CIs are calculated from the data provided in the source paper