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Table 3 RBCS factors as a function of chews per day and quid type

From: The reasons for betel-quid chewing scale: assessment of factor structure, reliability, and validity

  Mean CPD Reinforcement Social/cultural Stimulation
Chews per day (CPD)     
 <5 (n = 78) 2.78 (0.88) 1.32 (1.13)a 0.85 (0.78)a 1.89 (1.41)a
 5-9 (n = 87) 6.49 (1.36) 1.44 (1.41)ab 1.17 (0.86)ab 2.34 (1.22)ab
 10-15 (n = 109) 11.59 (2.11) 1.88 (1.45)b 1.28 (1.15)b 2.08 (1.32)a
 ≥16 (n = 77) 27.62 (21.91) 2.47 (1.27)c 1.73 (1.27)c 2.70 (1.06)b
Quid type     
 Nut alone (n = 50) 6.94 (6.54) 1.99 (1.26)ab 0.93 (0.99)a 1.42 (1.13)a
 Quid (lime, leaf, nut) (n = 69) 9.39 (7.15) 2.09 (1.43)a 1.56 (1.33)b 2.16 (1.38)b
 Quid plus tobacco (n = 232) 13.68 (1.24) 1.63 (1.41)b 1.23 (1.00)ab 2.43 (1.24)b
Age     
 18-25 (n = 121) 9.20 (6.02) 1.40 (1.37)a 1.24 (0.88)a 2.34 (1.29)ab
 26-35 (n = 83) 14.47 (23.68) 1.83 (1.38)ab 1.40 (1.06)a 2.53 (1.12)a
 36-45 (n = 68) 14.09 (9.86) 2.00 (1.37)b 1.36 (1.21)a 1.97 (1.32)b
 >45 (n = 79) 11.39 (9.56) 2.12 (1.39)b 1.54 (1.23)a 2.00 (1.42)b
Ethnicity     
 Chamorro (n = 121) 9.67 (7.14) 2.21 (1.33)ab 1.38 (1.25)a 1.94 (1.29)a
 Chuukese (n = 98) 8.80 (6.90) 0.97 (1.17)c 1.27 (0.84)a 3.08 (1.03)b
 Palauan (n = 76) 14.43 (9.02) 1.71 (1.43)a 1.13 (1.08)a 1.83 (1.20)a
 Yapese (n = 23) 29.78 (41.66) 2.72 (0.93)b 1.00 (1.10)a 2.23 (1.12)a
 Other (n = 33) 10.85 (6.35) 2.08 (1.36)ab 1.24 (1.10)a 1.76 (1.29)a
  1. mean (sd) are reported in the table.
  2. a,b,c,: For each of the three variables, the same subscript letters after the mean (se) numbers for the level designate that the levels were statistically insignificant (p > 0.05), different letters indicate significant differences across group comparisons (p < 0.05).