Table 2.
Demographic description of subjects enrolled in a case-control study of paresthesia and World Trade Center exposures.a
| Variable | Value | Cases | Clinic Controls |
Community Controls |
p-value* |
|---|---|---|---|---|---|
| Number enrolled | 41 | 38 | 20 | ||
| Gender | |||||
| Male | 15 (37) | 13 (34) | 8 (40) | 0.9 | |
| Female | 26 (63) | 25 (66) | 12 (60) | ||
| Age | |||||
| 25-34 | 2 (5) | 1 (3) | 1 (5) | 1.0 | |
| 35-44 | 4 (10) | 4 (11) | 2 (10) | ||
| 45-54 | 8 (20) | 7 (18) | 4 (20) | ||
| 55-64 | 16 (39) | 15 (39) | 7 (35) | ||
| ≥ 65 | 11 (27) | 11 (30) | 6 (30) | ||
| Race | |||||
| Caucasian | 15 (37) | 21 (55) | 8 (40) | 0.16 | |
| African-American | 11 (37) | 8 (21) | 9 (45) | ||
| American Indian, Asian and other | 3 (7) | 4 (11) | 0 (0) | ||
| Don't know/Refused to answer | 12 (29) | 5 (13) | 3 (15) | ||
| Ethnicity | |||||
| Not Hispanic | 27 (66) | 29 (76) | 14 (70) | 0.8 | |
| Hispanic | 13 (32) | 8 (21) | 6 (30) | ||
| Refused to answer | 1(2) | 1 (3) | 0 (0) | ||
| Annual household income (USD) | |||||
| <$25,000 | 15 (37) | 6 (16) | 7 (35) | 0.04¶ | |
| $25,001 - $75,000 | 17 (41) | 15 (39) | 7 (35) | ||
| > $75,000 | 3 (12) | 16 (42) | 6 (30) | ||
| Refused to answer | 4 (10) | 1 (3) | 0 (0) | ||
| Body mass index BMI (kg/m2) | < 25 | 6 (15) | 12 (32) | 7 (35) | 0.2 |
| 25 to < 30 | 15 (37) | 12 (32) | 7 (35) | ||
| 30 to < 35 | 10 (24) | 6 (16) | 5 (25) | ||
| ≥ 35 | 10 (24) | 8 (21) | 1 (5) | ||
| CAGE alcoholism score | < 2 | 39 (98) | 31 (86) | 18 (95) | 0.3 |
| ≥ 2 | 1 (3) | 4 (11) | 1 (5) | ||
| Weekday alcohol consumption outside mealtimes | No | 37 (95) | 31 (89) | 14 (74) | 0.06 |
| Yes | 2 (5) | 4 (11) | 5 (26) | ||
| Days per week consumed alcohol | 0 – 1 | 31 (82) | 23 (66) | 11 (61) | 0.3 |
| 2 | 4 (11) | 4 (11) | 4 (22) | ||
| ≥ 3 | 3 (8) | 8 (22) | 4 (17) | ||
| Caught in WTC dust cloud on 9/11 | No | 17 (41) | 17 (45) | 0.8 | |
| Yes | 24 (59) | 21 (55) | |||
| Heavily covered with dust on 9/11 | No | 30 (73) | 33 (87) | 0.17¶ | |
| Yes | 11 (27) | 5 (13) | |||
| Worked in a job requiring cleaning of WTC dust | No | 32 (78) | 34 (89) | 0.23¶ | |
| Yes | 9 (22) | 4 (11) |
a.
Counts not summing to the total number of subjects in each group reflect missing data.
*
p-values from the chi-squared test unless otherwise indicated.
¶
p-value from Fisher's exact test