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. 2010 Nov 4;13(4):427–440. doi: 10.1111/j.1369-7625.2010.00592.x

Table 1.

 Support Group Leader and Group demographic information

Total (n = 353), M (SD) Trained (n = 40), M (SD) Untrained (n = 313), M (SD) t 1 d.f. P Mean diff. 95% CI of difference
Age in years 57 (12) 52 (9) 57 (12) −2.584 342 0.010 −5.28 −9.30, −1.26
Valid, n 344 36 308
Years as a group leader 6 (7.4) 12 (12.1) 6 (6.1) 3.366 40.6 0.002 6.64 2.66, 10.63
Valid, n 342 39 303
Years leading current support group 5 (4.2) 4 (3.5) 5 (4.3) −0.540 335 0.590 −0.39 −1.80, 1.03
Valid, n 337 39 298
Average number of attendees 14 (9.8) 11 (5.0) 15 (10.2) −4.046 87.9 <0.001 −4.02 −5.99, −2.05
Valid, n 346 40 306
No. support groups currently conducted   1(0.7) 2 (0.8) 1(0.7) 2.774 45.2 0.008 0.40 0.11, 0.69
Valid, n 344 40 304

1If Levene’s test indicated violation of the homogeneity of variance assumption, the Welch‐Satterthwaite approximation for the case of unequal variances was used.