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Table 1 The relative frequency of the characteristics of the population within each age category

From: Past mercury exposure and current symptoms of nervous system dysfunction in adults of a First Nation community (Canada)

  Na 18–29 y
n (%)
30–49 y
n (%)
50+ y
n (%)
Total
n (%)
Chi-square (LR)b
p-value
Sex 391      
 Women   66 (53.3%) 97 (51.6%) 48 (60.8%) 211 (54%) 1.94
0.380
 Men   58 (46.7%) 72 (48.4%) 31 (39.2%) 180(46%)  
Living on reserve 390 95 (76.6%) 144 (77.0%) 62 (78.5%) 301 (77.2%) 0.10
0.949
Schooling
 Attended school 382 122 (100%) 180 (98.4%) 75 (97.4%) 377 (98.7%) 4.13
0.257
 Attended high school 366 115 (98.3%) 166 (94.9%) 48 (64.9%) 329 (89.9%) 52.6
< 0.0001
 Other education 386 33 (27.1%) 108 (58.4%) 43 (54.4%) 184 (47.7%) 31.69
< 0.0001
Residential school
 Attended residential school 376 0 6 (3.4%) 52 (66.7%) 58 (15.4%) 171
< 0.0001
 Parents in residential school 326 36 (40.5%) 148 (89.7%) 68 (94.4%) 252 (77.3%) 89
< 0.0001
Work activities
 Currently workingc 349 39 (37.5%) 94 (52.2%) 32 (48.5%) 165 (49.2%) 5.90
0.052
 Currently looking for workc 165 45 (81.8%) 58 (75.3%) 7 (21.2%) 110 (66.7%) 38.2
< 0.0001
Struggle to pay for food monthly or more in the last year 332 28 (26.9%) 38 (24.2%) 17 (23.9%) 83 (25.0%) 3.65
0.392
Current smoker 376 54 (46.2%) 90 (49.7%) 24 (30.8%) 168 (44.7%) 0.28
0.016
Heavy drinker 360 79 (71.2%) 100 (56.8%) 20 (27.4%) 199 (55.3%) 35.3
< 0.0001
Obese 375 47 (39.8%) 93 (51.7%) 36 (46.8%) 176 (46.9%) 4.03
0.133
At least one diagnosed chronic health condition 385 46 (38.3%) 117 (62.9%) 67 (84.8%) 230 (59.7%) 46.6
< 0.0001
At least one diagnosed nervous system disorder 381 20 (17.1%) 37 (19.9%) 35 (44.9%) 92 (24.2%) 32.6
< 0.0001
  1. aNumber (N) of valid responses (does not include don’t know or don’t remember and refused)
  2. bLikelihood Ratio Chi-square compares the relative frequency between age categories
  3. cExcludes students, stay at home parents and retirees