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. 2016 Dec 31;59(12):483–489. doi: 10.3345/kjp.2016.59.12.483

Table 1. Number of cases according to age and sex (n=4,062).

Study group age Age (mo) Sex Total
Male Female
1st (4–6 mo) 4–5 374 (49.7) 379 (50.3) 753
6–7 1 (100) 0 (0) 1
Total 375 (49.7) 379 (50.3) 754
2nd (9–12 mo) 8–9 51 (54.3) 43 (45.7) 94
10–11 219 (55.3) 178 (44.7) 397
12–13 185 (52.6) 167 (47.4) 352
14–15 4 (80.0) 1 (20.0) 5
Total 460 (54.2) 389 (45.8) 848
3rd (18–24 mo) 18–19 123 (52.1) 113 (47.9) 236
20–21 114 (50.7) 111 (49.3) 225
22–23 144 (50.9) 139 (49.1) 283
24–26 95 (51.4) 90 (48.6) 185
Total 476 (51.2) 453 (48.8) 929
4th (30–36 mo) 30–32 113 (48.9) 118 (51.1) 231
33–35 145 (54.9) 119 (45.1) 264
36–41 76 (52.4) 69 (47.6) 145
Total 334 (52.2) 306 (47.8) 640
5th (42–48 mo) 42–47 164 (48.2) 176 (51.8) 340
48–53 49 (51.0) 47 (49.0) 96
Total 213 (48.9) 223 (51.1) 436
6th (54–60 mo) 54–59 116 (52.3) 106 (47.7) 222
60–65 28 (49.1) 29 (50.9) 57
Total 144 (51.6) 135 (48.4) 279
7th (66–71 mo) 66–71 79 (45.1) 96 (54.9) 175
Total 2,081 (51.2) 1,981 (48.8) 4,062

Values are presented as number of cases (%).