Accelerometer-determined physical activity and self-reported health in a population of older adults (65–85 years): a cross-sectional study

Table 1 Physical activity measurements by age and sex

	Women		Men		Mean difference	95% CI	All
Age	N	Mean	N	Mean	(Men-Women)		N	Mean
Overall PA (cpm) ^{a, b}
65–69 yr	127	311 (13.4)	116	325 (14.0)	14 (19.6)	−25 to 52	243	317 (9.2)^c
70–74 yr	67	294 (19.2)	79	308 (17.7)	14 (26.1)	−38 to 65	146	301 (11.8)^d
75–79 yr	51	215 (19.5)	55	256 (18.8)	41 (27.1)	−13 to 95	106	237 (13.9)^e
80–85 yr	37	166 (11.2)	28	153 (12.8)	−13 (17.1)	−47 to 21	65	160 (17.7)^f
Steps per day ^{a, b}
65–69 yr	127	7537 (1825.1)	116	11191 (1886.5)	3654 (2646.5)	−1559 to 8867	243	9302 (866.1)^g
70–74 yr	67	6904 (387.6)	79	6798 (353.0)	−106 (524.3)	−1143 to 930	146	6841 (1109.1)
75–79 yr	51	5256 (433.7)	55	6114 (417.9)	859 (602.8)	−336 to 2054	106	5721 (1307.5)
80–85 yr	37	4059 (305,9)	28	3436 (348.8)	−623 (464.3)	−1550 to 304	65	3777 (1635.4)^h

^a Data are presented as mean standard error of the mean (SEM).
^b All values (overall PA in cpm and in steps per day) are adjusted for test centre.
^c 65–69 yr compared to 75–79 yr p = 0.000, and 65–69 yr compared to 80–85 yr p = 0.000.
^d 70–74 yr compared to 75–79 yr p = 0.03, and 70–74 yr compared to 80–85 yr p = 0.000.
^e 75–79 yr compared to 65–69 yr p = 0.000, 75–79 yr compared to 70–74 yr p = 0.03, and 75–79 yr compared to 80–85 yr p = 0.04.
^f 80–85 yr compared to 65–69 yr p = 0.000, 80–85 yr compared to 70–74 yr p = 0.000, and 80–85 yr compared to 75–79 yr p = 0.04.
^g 65–69 yr compared to 80–85 yr p = 0.02.
^h 80–85 yr compared to 65-79 yr p=0.02.
No significant differences between sex within age groups.

ISSN: 1471-2458