Skip to main content
. Author manuscript; available in PMC: 2016 Jul 1.
Published in final edited form as: Behav Genet. 2015 Apr 18;45(4):382–393. doi: 10.1007/s10519-015-9715-9

Table 3.

Summary statistics for twins’ self-report depression scores

Age (years) Boys
 Girls
N Mean SD N Mean SD
8 87 10.93 8.85 116 13.54 9.69
9 189 11.84 9.69 230 12.22 11.43
10 217 9.93 7.92 271 9.63 9.97
11 293 8.67 7.97 342 8.97 9.50
12 279 9.09 8.64 300 9.24 8.91
13 314 9.27 8.15 373 10.72 9.71
14 361 8.11 8.14 396 10.49 9.10
15 367 9.21 8.94 416 11.08 11.00
16 352 8.07 7.90 401 11.45 9.91
17 274 7.87 8.00 276 11.30 9.79
18+ 184 7.98 7.17 202 11.22 10.04