. Author manuscript; available in PMC: 2013 Feb 1.

Published in final edited form as: Int Psychogeriatr. 2012 Oct 19;25(2):275–285. doi: 10.1017/S1041610212001718

Table 2.

Raw Scores for Baseline Demographic and Health Information Characteristics at Baseline by the Latent Class of Subjective Fatigue (N = 2,781)

	Increased fatigue N = 58	Persistent fatigue N = 456	Decreased fatigue N = 61	Persistent energy N = 2,206	F or X² test
Age, mean (SD)	74.09 (5.29)^a,b	74.71 (6.22)^a	74.15 (6.84)^a,b	73.35 (5.77)^b	7.04^***
Male, n (%)	14 (24.1%)	91 (20.0%)	14 (23.0%)	550 (24.9%)	5.16
Caucasian, n (%)	48 (82.8%)^a	344 (75.4%)^b	54 (88.5%)^a	1567 (71.0%)^c	15.21^**
Years of education, mean (SD)	13.54 (3.06)^a,b	13.01 (2.62)^a	13.52 (2.63)^a,b	13.64 (2.70)^b	6.86^***
Depression, mean (SD)	0.31 (0.30)^a	0.74 (0.52)^b	0.87 (0.56)^c	0.37 (0.38)^d	127.85^***
Grip strength, mean (SD)	23.71 (10.08)^a,b	22.84 (7.86)^a	21.90 (7.76)^a	24.42 (8.31)^b	5.04^**
CVDRFs
• Total number, mean (SD)	1.72 (1.25)^a	2.24 (1.46)^b	2.15 (1.44)^a,b	1.73 (1.24)^a	21 44^***
• History of heart disease, n (%)	9 (15.8%)^a,b	119 (26.4%)^b	14 (23.0%)^a,b	279 (12.8%)^a	56.93^***
• History of CHF, n (%)	2 (3.4%)^a,b	48 (10.7%)^b	5 (8.3%)^a,b	82 (3.7%)^a	39.59^***
• History of stroke, n (%)	4 (7.0%)^a,b	48 (10.6%)^b	12 (19.7%)^b	129 (5.9%)^a	28.29^***
• History of hypertension, n (%)	31 (53.4%)	258 (57.0%)	33 (54.1%)	1099 (50.1%)	7.37
• History of diabetes, n (%)	4 (6.9%)	68 (14.9%)	10 (16.4%)	274 (12.4%)	4.59
• History of high cholesterol, n (%)	25 (45.5%)	223 (49.8%)	30 (49.2%)	943 (43.5%)	6.45
• Smoking, n (%)	1 (3.7%)	42 (18.8%)	4 (14.3%)	160 (16.0%)	4.27
• Obesity, n (%)	24 (41.4%)^a,b	215 (47.1%)^b	23 (37.7%)^a,b	846 (38.3%)^a	12.38^**

Note. Each subscript letter denotes a subset of class whose column proportions do not differ significantly from each other at the 0.0125 level (Bonferroni's correct).

^**

p < .01;

^***

p < .001.

CVDRFs = cardiovascular diseases and risk factors; CHF = congestive heart failure.