Table 1.

Sociodemographic Characteristics of Patients with Behavioral Variant Frontotemporal Dementia, Alzheimer’s Disease, and Patients’ Spousal Caregivers

	Patients with AD	Spousal caregivers of patients with AD	Patients with bvFTD	Spousal caregivers of patients with bvFTD
n	29	29	28	28
Age (M [SD])	61.92 (8.89)	61.08 (8.77)	61.78 (8.22)	60.21 (8.04)
Sex	15 M, 14 F	13 M, 16 F	20 M, 8 F	9 M, 19 F
Smiles
Duchenne
Frequency	1.03 (1.30)	0.97 (1.13)	0.97 (1.11)	1.04 (1.05)
Intensity	1.39 (1.67)	1.51 (1.70)	0.98 (1.45)	1.01 (1.44)
Duration	4.72 (5.93)	3.97 (5.41)	4.69 (6.41)	3.74 (4.60)
Composite	0.04 (0.99)	0.03 (0.93)	−0.05 (0.90)	−0.03 (0.91)
Non-Duchenne
Frequency	1.26 (1.48)	1.19 (1.29)	0.88 (1.17)	1.19 (1.15)
Intensity	1.16 (1.14)	1.43 (1.41)	0.99 (1.04)	1.35 (1.05)
Duration	3.88 (4.63)	5.52 (7.58)	3.04 (4.17)	4.79 (5.97)
Composite	0.08 (1.03)	−0.02 (0.99)	−0.08 (0.89)	0.02 (0.88)
Marital satisfaction	—	111.65 (30.71)	—	96.40 (28.25)
MMSE (M [SD])	21.97 (5.12)	—	25.07 (4.12)	—
Mental Health (M [SD])	—	0.35 (0.91)	—	−0.36 (1.12)

Note. For smiles, three raw subscores are presented: frequency (number of Duchenne smiles), intensity (average intensity of the Duchenne smile), and duration (number of seconds during the film during which there is a Duchenne smile). Logarithmic transformations were applied to the subscores to reduce skewness. Subscores were then normalized (using the means and standard deviations for the entire sample) and averaged to derive the score for the two kinds of smiles (see Keltner & Bonanno, 1997). Higher scores on marital satisfaction indicate greater satisfaction (range: 2–158); lower scores on MMSE indicate lower cognitive functioning (range: 0–30). A dash (—) indicates that the given variable was not measured.

AD = Alzheimer’s disease; bvFTD = behavioral variant frontotemporal dementia; MMSE = Mini-Mental State Exam.