Table 1 Selected demographic characteristics of study populations from four data sets
From: Cigarette smoking and the oral microbiome in a large study of American adults
Never smokers | Former smokers | Current smokers | P-value | |
|---|---|---|---|---|
CPS-II-a (n=203) | n=77 | n=103 | n=23 | |
Age, mean (s.d.) | 70.53 (6.15) | 70.71 (6.23) | 68.82 (6.91) | 0.34a |
Sex, n (%) | 0.02b | |||
Male | 47 (61.04) | 82 (79.61) | 16 (69.57) | |
Female | 30 (38.96) | 21 (20.39) | 7 (30.43) | |
Race, n (%) | NA | |||
White | 77 (100) | 103 (100) | 23 (100) | |
Non-White | 0 | 0 | 0 | |
BMI (kg m−2), n (%) | 0.57c | |||
Under weight (<18.5) | 1 (1.30) | 1 (0.97) | 0 | |
Normal weight (18.5–25) | 29 (37.66) | 38 (36.89) | 7 (30.43) | |
Overweight (25–30) | 33 (42.86) | 37 (35.92) | 6 (26.09) | |
Obese weight (>30) | 10 (12.99) | 21 (20.39) | 3 (13.04) | |
Missing | 4 (5.19) | 6 (5.83) | 7 (30.43) | |
CPS-II-b (n=340) | n=150 | n=177 | n=13 | |
Age, mean (s.d.) | 74.80 (5.81) | 72.97 (5.34) | 70.77 (6.66) | 1.40E−4a |
Sex, n (%) | 1.00E−4b | |||
Male | 60 (40.00) | 112 (63.28) | 8 (61.54) | |
Female | 90 (60.00) | 65 (36.72) | 5 (38.46) | |
Race, n (%) | 0.42c | |||
White | 142 (94.67) | 171 (96.61) | 12 (92.31) | |
Non-White | 8 (5.33) | 6 (3.39) | 1 (7.69) | |
BMI (kg m−2), n (%) | 0.02c | |||
Under weight (<18.5) | 5 (3.33) | 1 (0.56) | 1 (7.69) | |
Normal weight (18.5–25) | 60 (40.00) | 64 (36.16) | 8 (61.54) | |
Overweight (25–30) | 57 (38.00) | 81 (45.76) | 1 (7.69) | |
Obese weight (>30) | 26 (17.33) | 27 (15.25) | 3 (23.08) | |
Missing | 2 (1.33) | 4 (2.26) | 0 | |
PLCO-a (n=261) | n=100 | n=126 | n=35 | |
Age, mean (s.d.) | 63.45 (5.29) | 63.71 (5.10) | 60.77 (4.66) | 0.01a |
Sex, n (%) | 2.00E−4b | |||
Male | 63 (63.00) | 107 (84.92) | 30 (85.7) | |
Female | 37 (37.00) | 19 (15.08) | 5 (14.3) | |
Race, n (%) | 0.51c | |||
White | 96 (96.00) | 119 (94.44) | 32 (91.4) | |
Non-White | 4 (4.00) | 5 (5.56) | 3 (8.5) | |
BMI (kg m−2), n (%) | 0.33c | |||
Under weight (<18.5) | 1 (1.00) | 0 | 0 | |
Normal weight (18.5–25) | 36 (36.00) | 36 (28.57) | 17 (48.57) | |
Over weight (25–30) | 45 (45.00) | 58 (46.03) | 14 (40.00) | |
Obese weight (>30) | 18 (18.00) | 27 (21.43) | 4 (11.43) | |
Missing | 0 | 4 (3.97) | 0 | |
PLCO-b (n=400) | n=194 | n=165 | n=41 | |
Age, mean (s.d.) | 64.25 (5.24) | 63.98 (5.32) | 61.02 (4.7) | 2.00E−3a |
Sex, n (%) | 2.00E−3b | |||
Male | 102 (47.42) | 109 (66.06) | 32 (78.05) | |
Female | 92 (52.58) | 56 (33.94) | 9 (21.95) | |
Race, n (%) | 0.04b | |||
White | 179 (92.27) | 153 (92.73) | 33 (80.49) | |
Non-White | 15 (7.73) | 12 (7.27) | 8 (19.51) | |
BMI (kg m−2), n (%) | 0.29c | |||
Under weight (<18.5) | 1 (0.52) | 2 (1.21) | 0 | |
Normal weight (18.5–25) | 68 (35.05) | 41 (24.85) | 16 (39.02) | |
Over weight (25–30) | 77 (39.69) | 69 (41.82) | 15 (36.59) | |
Obese weight (>30) | 45 (23.2) | 50 (30.30) | 9 (21.95) | |
Missing | 3 (1.55) | 3 (1.82) | 1 (2.44) |
