Gray Hair Observations
and Age at Examination
TABLE 5
Age at
(by Sex, Exposure Group)
Group 1
examination
O
+
Group 2
+4++4+4++Totei!
0
+
Group 3
44++4+4+Total|
0
+
Group 4
4FE+4++Totel|
0
+
+4++-4++ Total
Male
15-19
2
2]
13
13)
4
4)
13
13
20-24
5
5
9
9
7
7
5
3
25-29
&
30-34
H
8:17
35-39
6
40-44
4
4
45-49
4
5
50-54
3
3
2
55-59
}
3
4
60-64
1
7
8 .
1
65-69
1
5
1
70-74
2
1
2
775+
Total
45
27
2
1
7
[11
i
8
13
12
12
9
9
12
6
4
4
2
1
3
3
1
4
8
4
2
1
7
5
3
8)
11
2
13
11
4
3
1
8
5
2
7
5
6
i]
9
2
10
6
I
19
5
4
2
11
1
6
8
2
7
7
2
18
3
5
4
12
I
1
6
17
6
4
3
13
3
5
19
1
7
3
1
12
7
3
4
1
8
2
6
8
1
2
2
2
7
3
1
5
2
8
1
3
4
1
|
2
3
]
4
T
1
31
10
140]
51
7
06
1
1
2
23
4
99!
6&7
32
21
2
1
3
4
21
5
98
61
i
9
12
26
2
9
8
12
Female
15-19
8
8
16
16
10
10
9
9
20-24
5
5
19
19
16
16
6
6
25-29
16
16
12
12
8
8
8
8
30-34
33
33
28
28
10
1
|
20
1
28
15
5)
a1
1
12
34]
14
7
1
22
+10
1
11
16
1
19
28
40-44
35-39
|
14
18
2
1
V7
29
5
45-49
13
6
2
2t
23
7T
3
33}
12
&
2
22
9
6
]
50-54
9
6
6
1
22
18
#10
9
37
8
5
6
19
4
3
3
1
24
5
#611
9
2
31
2
1
7
12
10
3
25
3
6
3
4
3
10
1
2
3
42
10
287
55-59
4
6
13
60-64
1
5
8
65-69
1
2
7
1
11
70-74
1
5
2
8
1
1
2
44
6
200;
75+
Total
1230
27
14
GERIATRICS, JANUARY
2
184
1961
51
|
1t
|]95
21
1
]
3
6
7
7
2
19
4
16
7
7
1
15
4
8
2
14
|
2
1
4
4
1
5
1
IT
1
3
3
1
4
(27
5
1
1
30
39
2
7
#171
84
250
21
33
141