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Table 1 Baseline demographic and clinical characteristics of 1052 Chinese men with lung cancer, grouped by level of alcohol consumption and consumption of preserved or fried food

From: Prognostic value of alcohol consumption and some other dietary habits for survival in a cohort of Chinese men with lung cancer

Characteristica Alcoholb Preserved or fried foodc
Never (n = 391) Occasional (n = 289) Frequent (n = 372) Occasional (n = 768) Frequent (n = 284)
Age group (years)
<50 33 (8.4) 28 (9.7) 18 (4.8) 65 (8.5) 20 (7.0)
50–59 62 (15.9) 58 (20.1) 62 (16.7) 142 (18.5) 39 (13.7)
60–69 144 (36.8) 97 (33.6) 127 (34.2) 272 (35.5) 92 (32.4)
≥70 152 (38.9) 106 (36.7) 164 (44.2)^ 288 (37.5) 133 (46.8)^
District of residence
New Territories 65 (17.3) 49 (17.3) 50 (13.9) 126 (16.9) 38 (13.9)
Kwai Tsing 30 (8.0) 30 (10.6) 34 (9.5) 67 (9.0) 27 (9.9)
Wong Tai Sin 68 (18.1) 58 (20.5) 67 (18.7) 147 (19.7) 46 (16.8)
Kowloon City 41 (10.9) 50 (17.7) 36 (10.0) 95 (12.8) 32 (11.7)
Yau Tsim Moog 27 (7.2) 20 (7.1) 40 (11.1) 65 (8.7) 22 (8.1)
Sham Shui Po 59 (15.7) 26 (9.2) 58 (16.2) 98 (13.2) 45 (16.5)
Others 86 (22.9) 50 (17.7) 74 (20.6)^ 147 (19.7) 63 (23.1)
Education level
Primary school 102 (26.2) 50 (17.3) 110 (29.6) 179 (23.4) 84 (29.6)
Middle school 162 (41.5) 134 (46.4) 168 (45.3) 326 (42.6) 136 (47.9)
College or above 126 (32.3) 105 (36.3) 93 (25.1)^ 261 (34.1) 64 (22.5)^
Marital status
Married 62 (15.9) 44 (15.2) 68 (18.3) 130 (16.9) 45 (15.8)
Others 329 (84.1) 245 (84.8) 304 (81.7) 638 (83.1) 239 (84.2)
Family income (Hong Kong dollars/month)
<4000 228 (58.6) 161 (55.7) 252 (67.7) 457 (59.7) 184 (64.8)
≥4000 100 (25.7) 88 (30.4) 79 (21.2) 198 (25.8) 69 (24.3)
Unknown 61 (15.7) 40 (13.8) 41 (11.1)^ 111 (14.5) 31 (10.9)
Smoking status d
Never 60 (15.4) 34 (11.8) 21 (5.6) 103 (13.4) 13 (4.6)
Former 99 (25.4) 90 (31.1) 109 (29.3) 208 (27.1) 87 (30.6)
Current 231 (59.2) 165 (57.1) 242 (65.1)^ 456 (59.5) 184 (64.8)^
Cancer history in first-degree relatives
No 262 (67.2) 189 (65.4) 232 (62.5) 476 (62.1) 206 (72.5)
Yes 68 (17.4) 65 (22.5) 80 (21.6) 161 (21.1) 48 (16.9)
Not sure 60 (15.4) 35 (12.1) 59 (15.9) 129 (16.8) 30 (10.6)^
Charlson comorbidity index
0–2 384 (98.2) 287 (99.3) 364 (97.8) 753 (98.0) 282 (99.3)
3–6 7 (1.8) 2 (0.7) 8 (2.2) 15 (2.0) 2 (0.7)
Stage at diagnosis
I 52 (13.3) 30 (10.4) 36 (9.7) 90 (11.7) 28 (9.9)
II 11 (2.8) 17 (5.9) 20 (5.4) 34 (4.4) 16 (5.6)
III 105 (26.9) 92 (31.8) 129 (34.7) 243 (31.6) 80 (28.2)
IV 118 (30.2) 79 (27.3) 94 (25.3) 219 (28.5) 72 (25.3)
Unknown 105 (26.9) 71 (24.6) 93 (25.0) 182 (23.7) 88 (31.0)
Treatment
Surgery 26 (6.6) 20 (6.9) 37 (9.9) 57 (7.4) 20 (7.0)
Chemotherapy 52 (13.3) 40 (13.8) 38 (10.2) 94 (12.2) 34 (12.0)
Radiotherapy 79 (20.2) 49 (17.0) 76 (20.4) 140 (18.2) 62 (21.8)
Others 8 (2.0) 7 (2.4) 14 (3.8) 18 (2.3) 11 (3.9)
No treatment 122 (31.2) 95 (32.9) 106 (28.5) 233 (30.3) 88 (31.0)
Combination 104 (26.6) 78 (27.0) 101 (27.2) 226 (29.4) 69 (24.3)
BMI e (mean ± SD) 21.2 ± 3.3 21.3 ± 3.1 21.1 ± 3.3 21.4 ± 3.2 20.7 ± 3.2*
  1. BMI body mass index, SD standard deviation
  2. ^ P < 0.05 in the Chi Square test or Fisher’s exact test
  3. * P < 0.05 in t test
  4. a Number of cases with missing data: 34 for district of residence; 2 for education level, family income, and cancer in first-degree relatives; 1 for age group and smoking status
  5. b Occasional consumer: 1–3 days/week; frequent consumer: ≥4 days/week
  6. c Occasional consumer: <1 serving/day; frequent consumer: ≥1 serving/day
  7. d Never smoker: smoking <20 packs of cigarettes in a lifetime or ≤1 cigarette per day for 1 year; former smoker: quit smoking ≥2 years ago; current smoker: still smoking or quit <2 years ago
  8. e Except this one, other values are presented as number of cases followed by percentage in parentheses