|
|
n |
n |
% |
n |
% |
X2 |
P* |
OR |
95% CI |
OR |
95% CI |
Household pets |
No |
382 |
351 |
91.88 |
31 |
8.12 |
2.10 |
0.148 |
Ref. |
|
|
|
|
Yes |
46 |
45 |
97.83 |
1 |
2.27 |
|
|
0.25 |
0.03,1.89 |
0.25 |
0.03,1.89 |
Previous history of hoarseness |
No |
255 |
242 |
94.90 |
13 |
5.10 |
5.16 |
0.023 |
Ref. |
|
|
|
|
Yes |
173 |
154 |
89.02 |
19 |
10.98 |
|
|
2.30 |
1.10, 4.78 |
22.32 |
1.11,
4.83 |
Parents had hoarseness |
No |
261 |
244 |
93.45 |
17 |
6.51 |
0.90 |
0.344 |
Ref. |
|
|
|
|
Yes |
167 |
152 |
91.01 |
15 |
9.98 |
|
|
1.42 |
0.69, 2.92 |
1.37 |
0.67,2.83 |
Cried excessively in infancy |
No |
282 |
268 |
95.04 |
14 |
4.96 |
7.54 |
0.006 |
Ref. |
|
|
|
|
Yes |
147 |
128 |
87.07 |
18 |
12.34 |
|
|
2.69 |
1.30, 5.58 |
2.73 |
1.32,5.68 |
Exercise that requires loud voice |
No |
344 |
318 |
92.44 |
26 |
7.56 |
0.02 |
0.897 |
Ref. |
|
|
|
|
Yes |
84 |
78 |
92.86 |
6 |
7.14 |
|
|
0.94 |
0.37, 2.37 |
0.95 |
0.38, 2,40 |
Pronunciation issues |
No |
310 |
294 |
94.84 |
16 |
5.16 |
8.71 |
0.003 |
Ref. |
|
|
|
|
Yes |
118 |
102 |
86.44 |
16 |
13.56 |
|
|
2.89 |
1.39, 5.97 |
2.97 |
1.42, 6.20 |
Stuttering in the last year |
No |
365 |
343 |
93.97 |
22 |
6.03 |
8.08 |
0.004 |
Ref. |
|
|
|
|
Yes |
61 |
51 |
83.61 |
10 |
16.39 |
|
|
3.06 |
1.37,
6.82 |
3.21 |
1.43, 7.23 |
Having cold in the past 2 years |
Non frequent |
379 |
353 |
93.14 |
25 |
6.59 |
1.82 |
0.177 |
Ref. |
|
|
|
|
Frequent |
49 |
43 |
87.75 |
6 |
12.24 |
|
|
0.53 |
0.21, 136 |
0.52 |
0.20, 1.34 |
Having cough in the past 2 years |
Non frequent |
386 |
358 |
92.75 |
28 |
7.25 |
0.28 |
0.595 |
Ref. |
|
|
|
|
Frequent |
42 |
38 |
90.47 |
4 |
9.52 |
|
|
0.74 |
0.25, 2.23 |
0.73 |
0.24, 2.19 |
Previous intubation |
No |
413 |
384 |
92.98 |
29 |
7.02 |
|
0.093* |
Ref. |
|
|
|
|
Yes |
15 |
12 |
80.00 |
3 |
20.00 |
|
|
3.31 |
0.88 |
3.29 |
0.87,12.37 |
Allergy |
No |
308 |
281 |
91.23 |
27 |
8.76 |
2.64 |
0.104 |
Ref. |
|
|
|
|
Yes |
120 |
115 |
95.83 |
5 |
4.16 |
|
|
0.45 |
0.17, 1.20 |
0.46 |
0.17 1.22 |
Hearing impairment |
No |
397 |
368 |
92.70 |
29 |
7.30 |
0.23 |
0.629 |
Ref. |
|
|
|
|
Yes |
31 |
28 |
90.32 |
3 |
9.68 |
|
|
1.36 |
0.39, 4.74 |
1.38 |
0.39,4.85 |
Asthma |
No |
386 |
356 |
92.23 |
30 |
7.73 |
|
0.757* |
Ref. |
|
|
|
|
Yes |
42 |
40 |
95.24 |
2 |
4.76 |
|
|
0.59 |
0.14, 2.58 |
0.63 |
0.15, 2.76 |
Parents are smokers or previous smokers |
No |
240 |
226 |
94.16 |
14 |
5.83 |
2.13 |
0.144 |
Ref. |
|
|
|
|
Yes |
188 |
170 |
90.43 |
18 |
9.57 |
|
|
1.71 |
0.83, 3.53 |
1.79 |
0.86, 3.71 |
RSI score >13 |
No |
373 |
353 |
94.60 |
20 |
5.40 |
18.76 |
<0.001 |
Ref. |
|
|
|
|
Yes |
55 |
43 |
78.20 |
12 |
21.80 |
|
|
4.93 |
2.25,
10.77 |
4.78 |
2.17, 10.51 |