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Table 3 Sociodemographic, Life habits, and Sleep Situation Characteristics by CEI Status of Plastic Greenhouse Vegetable Farmers in Yinchuan, China from 2015 to 2017

From: Relationship between cumulative exposure to pesticides and sleep disorders among greenhouse vegetable farmers

Characteristics Sample size CEI Level
Low-level (n = 395) Medium-level (n = 424) High-level (n = 411)
Number of family member (n, %)
 One person 7 1 (14.29) 3 (42.86) 3 (42.86)
 Two persons 111 30 (27.03) 34 (30.63) 47 (42.34)
 Three persons 209 57 (27.27) 82 (39.23) 70 (33.49)
 Four and more 897 305 (34.00) 303 (33.78) 289 (32.22)
Gender (n, %)
 Male 685 212 (30.95) 239 (34.89) 234 (34.16)
 Female 545 183 (33.58) 185 (33.94) 177 (32.48)
Ethnic (n, %)
 Han 1107 379 (34.24) 380 (34.33) 348 (31.44)
 Hui 123 16 (13.01) 44 (35.77) 63 (51.22)
Age (Mean, SD) 1230 45.97 (10.37) 46.66 (10.18) 47.40 (9.70)
Educational level (n, %)
 No formal school education 332 12 (37.65) 127 (38.25) 80 (24.10)
 Primary school 386 135 (34.97) 135 (34.97) 116 (30.05)
 Junior high school 433 112 (25.87) 144 (33.26) 177 (40.88)
 High school and above 79 23 (29.11) 18 (22.78) 38 (48.10)
Marital status (n, %)
 Unmarried 41 10 (24.39%) 19 (46.34%) 12 (29.27%)
 Married 1166 376 (32.25%) 396 (33.96%) 394 (33.79%)
 Others 23 9 (39.13%) 9 (39.13%) 5 (21.74%)
Recent smoking status (refer to past 30 days) (n, %)
 Every day 454 149 (32.82%) 162 (35.68%) 143 (31.50%)
 Not every day 20 4 (20.00%) 6 (30.00%) 10 (50.00%)
 Former smoker, now quit 62 20 (32.26%) 24 (38.71%) 18 (29.03%)
 Never 694 222 (31.99%) 232 (33.43%) 240 (34.58%)
Drinking status (n, %)
 30 days ago, 193 58 (30.05%) 61 (31.61%) 74 (38.34%)
 Within the last 30 days 275 78 (28.36%) 103 (37.45%) 94 (34.18%)
 Never drinking 762 259 (33.99%) 260 (34.12%) 243 (31.89%)
Breakfast (n, %)
 Almost everyday 735 261 (35.51%) 246 (33.47%) 228 (31.02%)
 Occasionally 180 38 (21.11%) 64 (35.56%) 78 (43.33%)
 Few 102 27 (26.47%) 26 (25.49%) 49 (48.04%)
 Never 211 67 (31.75%) 88 (41.71%) 56 (26.54%)
Family net income group (n, %)
 Quartile 1 (<¥4000) 323 117 (36.22%) 112 (34.67%) 94 (29.10%)
 Quartile 2 (¥4000–¥10,000) 378 159 (42.06%) 129 (34.13%) 90 (23.81%)
 Quartile 3 (¥10,000–¥20,000) 279 69 (24.73%) 108 (38.71%) 102 (36.56%)
 Quartile 4 (>¥20,000) 250 50 (20.00%) 75 (30.00%) 125 (50.00%)
Number of chronic disease (n, %)
 None 1162 385 (33.13%) 398 (34.25%) 379 (32.62%)
 One 49 9 (18.37%) 20 (40.82%) 20 (40.82%)
 Two and more 19 1 (5.26%) 6 (31.58%) 12 (63.16%)
Survey year (n, %)
 2015 398 122 (30.65%) 140 (35.18%) 136 (34.17%)
 2016 449 148 (32.96%) 131 (29.18%) 170 (37.86%)
 2017 383 125 (32.64%) 153 (39.95%) 105 (27.42%)
Sleep duration (n, %)
 Short 217 54(24.88%) 73(33.64%) 90(41.47%)
 Optimal 736 245(33.29%) 250(33.97%) 241(32.74%)
 Long 277 96(34.66%) 101(36.46%) 80(28.88%)
Self-rated sleep quality (n, %)
 excellent 696 267 (38.36%) 254 (36.49%) 175 (25.14%)
 good 342 78 (22.81%) 107 (31.29%) 157 (45.91%)
 worse 166 42 (25.30%) 54 (32.53%) 70 (42.17%)
 much worse 26 8 (30.77%) 9 (34.62%) 9 (34.62%)
Hypnotic drug use (n, %)a
 None 1204 382 (31.73%) 416 (34.55%) 406 (33.72%)
 <1 times/week 11 4 (36.36%) 7 (63.64%) 0 (0.00%)
 1–2 times/week 7 3 (42.86%) 1 (14.29%) 3 (42.86%)
  ≥ 3 times/week 8 6 (75.00%) 0 (0.00%) 2 (25.00%)
Falling asleep trouble (n, %)
 None 994 343 (34.51%) 334 (33.60%) 317 (31.89%)
 <1 times/week 82 6 (7.32%) 39 (47.56%) 37 (45.12%)
 1–2 times/week 64 14 (21.88%) 24 (37.50%) 26 (40.63%)
  ≥ 3 times/week 90 32 (35.56%) 27 (30.00%) 31 (34.44%)
Sleep apnea (n, %)
 None 1145 365 (31.88%) 395 (34.50%) 385 (33.62%)
 <1 times/week 39 13 (33.33%) 14 (35.90%) 12 (30.77%)
 1–2 times/week 28 11 (39.29%) 9 (32.14%) 8 (28.57%)
  ≥ 3 times/week 18 6 (33.33%) 6 (33.33%) 6 (33.33%)
Nightmares (n, %)
 None 868 289 (33.29%) 301 (34.68%) 278 (32.03%)
 <1 times/week 120 43 (35.83%) 30 (25.00%) 47 (39.17%)
 1–2 times/week 118 29 (24.58%) 45 (38.14%) 44 (37.29%)
  ≥ 3 times/week 124 34 (27.42%) 48 (38.71%) 42 (33.87%)
Suffer from sleep disorders (n, %)
 None 1066 346 (32.46%) 369 (34.62%) 351 (32.93%)
 <1 times/week 67 19 (28.36%) 14 (20.90%) 34 (50.75%)
 1–2 times/week 49 11 (22.45%) 22 (44.90%) 16 (32.65%)
  ≥ 3 times/week 48 19 (39.58%) 19 (39.58%) 10 (20.83%)
  1. Note: Missing information about CEI in the calculation item resulted in a total sample size different from 1366
  2. a: Used Fisher’s exact test
  3. Family net income group: Calculated by family raw income minus family total expenditure in quartiles. ‘Quartile 1’ represents the lowest family finance status, while ‘Quartile 4’ is the highest family finance status
  4. Number of chronic diseases: chronic disease information was obtained using the question “Do you have the following diseases diagnosed at the hospital?”. Options included “Hypertension”, “Coronary heart disease (CHD)”, “Hyperlipidemia”, “Stroke”, “Myocardial infarction”, “Heart failure”, “Coronary atherosclerosis”, and “Others”
  5. ¥: China Yuan (CNY)
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