Table 3 Open in new tab Unadjusted mean...

	Age (years)
SDNN (ms)	Men	138.2	129.2	130.8	131.9*
	(95% CI)	(132.5–144.1)	(124.8–133.8)	(126.0–135.7)	(127.0–137.1)
	Women	135.8	134.7	130.6	123.6
	(95% CI)	(131.0–140.7)	(130.4–139.2)	(126.2–135.3)	(119.5–127.9)
TP (ms²)	Men	3925.2	3616.1	3597.3	3585.8*
	(95% CI)	(3568.6–4317.4)	(3340.5–3914.5)	(3295.8–3926.5)	(3288.4–3910.1)
	Women	4134.0	3876.5	3514.6	3200.5
	(95% CI)	(3818.3–4475.8)	(3600.2–4174.1)	(3223.4–3832.1)	(2973.4–3445.0)
HF (ms²)	Men	63.6***	59.7***	61.0	68.0
	(95% CI)	(55.4–72.9)	(53.0–67.2)	(53.4–69.7)	(59.4–77.8)
	Women	87.8	81.0	66.1	65.3
	(95% CI)	(79.1–97.4)	(72.6–90.4)	(57.6–75.7)	(58.6–72.8)
LF (ms²)	Men	318.1**	260.7	228.4**	196.0***
	(95% CI)	(284.4–355.8)	(237.9–285.7)	(205.9–253.4)	(175.7–218.5)
	Women	258.2	234.9	179.0	147.7
	(95% CI)	(238.0–280.0)	(214.5–257.3)	(161.0–199.0)	(135.1–161.4)
LF/HF	Men	5.0***	4.4***	3.7***	2.9***
	(95% CI)	(4.6–5.4)	(4.1–4.7)	(3.4–4.1)	(2.6–3.2)
	Women	2.9	2.9	2.7	2.3
	(95% CI)	(2.7–3.2)	(2.7–3.1)	(2.5–3.0)	(2.1–2.4)
VLF (ms²)	Men	719.1	641.7	637.9***	563.0***
	(95% CI)	(650.3–795.3)	(589.6–698.3)	(581.0–700.5)	(511.2–620.1)
	Women	668.5	623.7	504.3	450.0
	(95% CI)	(621.6–719.0)	(575.6–675.8)	(461.9–550.6)	(418.7–483.6)
ULF (ms²)	Men	2653.7	2479.2*	2463.4	2515.2
	(95% CI)	(2390.7–2945.5)	(2273.1–2704.0)	(2232.5–2718.1)	(2293.2–2758.7)
	Women	2928.7	2790.5	2605.8	2384.8
	(95% CI)	(2674.4–3207.1)	(2578.7–3019.8)	(2375.1–2858.8)	(2200.5–2584.6)

Age (years)

Sex

50–54 (n_m=181; n_f=219)

55–59 (n_m=238; n_f=217)

60–64 (n_m=186; n_f=189)

65–73 (n_m=242; n_f=270)

SDNN (ms)

Men

138.2

129.2

130.8

131.9*

(95% CI)

(132.5–144.1)

(124.8–133.8)

(126.0–135.7)

(127.0–137.1)

Women

135.8

134.7

130.6

123.6

(95% CI)

(131.0–140.7)

(130.4–139.2)

(126.2–135.3)

(119.5–127.9)

TP (ms²)

Men

3925.2

3616.1

3597.3

3585.8*

(95% CI)

(3568.6–4317.4)

(3340.5–3914.5)

(3295.8–3926.5)

(3288.4–3910.1)

Women

4134.0

3876.5

3514.6

3200.5

(95% CI)

(3818.3–4475.8)

(3600.2–4174.1)

(3223.4–3832.1)

(2973.4–3445.0)

HF (ms²)

Men

63.6***

59.7***

61.0

68.0

(95% CI)

(55.4–72.9)

(53.0–67.2)

(53.4–69.7)

(59.4–77.8)

Women

87.8

81.0

66.1

65.3

(95% CI)

(79.1–97.4)

(72.6–90.4)

(57.6–75.7)

(58.6–72.8)

LF (ms²)

Men

318.1**

260.7

228.4**

196.0***

(95% CI)

(284.4–355.8)

(237.9–285.7)

(205.9–253.4)

(175.7–218.5)

Women

258.2

234.9

179.0

147.7

(95% CI)

(238.0–280.0)

(214.5–257.3)

(161.0–199.0)

(135.1–161.4)

LF/HF

Men

5.0***

4.4***

3.7***

2.9***

(95% CI)

(4.6–5.4)

(4.1–4.7)

(3.4–4.1)

(2.6–3.2)

Women

2.9

2.7

2.3

(95% CI)

(2.7–3.2)

(2.7–3.1)

(2.5–3.0)

(2.1–2.4)

VLF (ms²)

Men

719.1

641.7

637.9***

563.0***

(95% CI)

(650.3–795.3)

(589.6–698.3)

(581.0–700.5)

(511.2–620.1)

Women

668.5

623.7

504.3

450.0

(95% CI)

(621.6–719.0)

(575.6–675.8)

(461.9–550.6)

(418.7–483.6)

ULF (ms²)

Men

2653.7

2479.2*

2463.4

2515.2

(95% CI)

(2390.7–2945.5)

(2273.1–2704.0)

(2232.5–2718.1)

(2293.2–2758.7)

Women

2928.7

2790.5

2605.8

2384.8

(95% CI)

(2674.4–3207.1)

(2578.7–3019.8)

(2375.1–2858.8)

(2200.5–2584.6)

	Age (years)
SDNN (ms)	Men	138.2	129.2	130.8	131.9*
	(95% CI)	(132.5–144.1)	(124.8–133.8)	(126.0–135.7)	(127.0–137.1)
	Women	135.8	134.7	130.6	123.6
	(95% CI)	(131.0–140.7)	(130.4–139.2)	(126.2–135.3)	(119.5–127.9)
TP (ms²)	Men	3925.2	3616.1	3597.3	3585.8*
	(95% CI)	(3568.6–4317.4)	(3340.5–3914.5)	(3295.8–3926.5)	(3288.4–3910.1)
	Women	4134.0	3876.5	3514.6	3200.5
	(95% CI)	(3818.3–4475.8)	(3600.2–4174.1)	(3223.4–3832.1)	(2973.4–3445.0)
HF (ms²)	Men	63.6***	59.7***	61.0	68.0
	(95% CI)	(55.4–72.9)	(53.0–67.2)	(53.4–69.7)	(59.4–77.8)
	Women	87.8	81.0	66.1	65.3
	(95% CI)	(79.1–97.4)	(72.6–90.4)	(57.6–75.7)	(58.6–72.8)
LF (ms²)	Men	318.1**	260.7	228.4**	196.0***
	(95% CI)	(284.4–355.8)	(237.9–285.7)	(205.9–253.4)	(175.7–218.5)
	Women	258.2	234.9	179.0	147.7
	(95% CI)	(238.0–280.0)	(214.5–257.3)	(161.0–199.0)	(135.1–161.4)
LF/HF	Men	5.0***	4.4***	3.7***	2.9***
	(95% CI)	(4.6–5.4)	(4.1–4.7)	(3.4–4.1)	(2.6–3.2)
	Women	2.9	2.9	2.7	2.3
	(95% CI)	(2.7–3.2)	(2.7–3.1)	(2.5–3.0)	(2.1–2.4)
VLF (ms²)	Men	719.1	641.7	637.9***	563.0***
	(95% CI)	(650.3–795.3)	(589.6–698.3)	(581.0–700.5)	(511.2–620.1)
	Women	668.5	623.7	504.3	450.0
	(95% CI)	(621.6–719.0)	(575.6–675.8)	(461.9–550.6)	(418.7–483.6)
ULF (ms²)	Men	2653.7	2479.2*	2463.4	2515.2
	(95% CI)	(2390.7–2945.5)	(2273.1–2704.0)	(2232.5–2718.1)	(2293.2–2758.7)
	Women	2928.7	2790.5	2605.8	2384.8
	(95% CI)	(2674.4–3207.1)	(2578.7–3019.8)	(2375.1–2858.8)	(2200.5–2584.6)

Table 3

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Unadjusted mean^a HRV values for men and women of different age groups of the total study population

	Age (years)
	Sex	50–54 (n_m=181; n_f=219)	55–59 (n_m=238; n_f=217)	60–64 (n_m=186; n_f=189)	65–73 (n_m=242; n_f=270)

SDNN (ms)	Men	138.2	129.2	130.8	131.9*
	(95% CI)	(132.5–144.1)	(124.8–133.8)	(126.0–135.7)	(127.0–137.1)
	Women	135.8	134.7	130.6	123.6
	(95% CI)	(131.0–140.7)	(130.4–139.2)	(126.2–135.3)	(119.5–127.9)
TP (ms²)	Men	3925.2	3616.1	3597.3	3585.8*
	(95% CI)	(3568.6–4317.4)	(3340.5–3914.5)	(3295.8–3926.5)	(3288.4–3910.1)
	Women	4134.0	3876.5	3514.6	3200.5
	(95% CI)	(3818.3–4475.8)	(3600.2–4174.1)	(3223.4–3832.1)	(2973.4–3445.0)
HF (ms²)	Men	63.6***	59.7***	61.0	68.0
	(95% CI)	(55.4–72.9)	(53.0–67.2)	(53.4–69.7)	(59.4–77.8)
	Women	87.8	81.0	66.1	65.3
	(95% CI)	(79.1–97.4)	(72.6–90.4)	(57.6–75.7)	(58.6–72.8)
LF (ms²)	Men	318.1**	260.7	228.4**	196.0***
	(95% CI)	(284.4–355.8)	(237.9–285.7)	(205.9–253.4)	(175.7–218.5)
	Women	258.2	234.9	179.0	147.7
	(95% CI)	(238.0–280.0)	(214.5–257.3)	(161.0–199.0)	(135.1–161.4)
LF/HF	Men	5.0***	4.4***	3.7***	2.9***
	(95% CI)	(4.6–5.4)	(4.1–4.7)	(3.4–4.1)	(2.6–3.2)
	Women	2.9	2.9	2.7	2.3
	(95% CI)	(2.7–3.2)	(2.7–3.1)	(2.5–3.0)	(2.1–2.4)
VLF (ms²)	Men	719.1	641.7	637.9***	563.0***
	(95% CI)	(650.3–795.3)	(589.6–698.3)	(581.0–700.5)	(511.2–620.1)
	Women	668.5	623.7	504.3	450.0
	(95% CI)	(621.6–719.0)	(575.6–675.8)	(461.9–550.6)	(418.7–483.6)
ULF (ms²)	Men	2653.7	2479.2*	2463.4	2515.2
	(95% CI)	(2390.7–2945.5)	(2273.1–2704.0)	(2232.5–2718.1)	(2293.2–2758.7)
	Women	2928.7	2790.5	2605.8	2384.8
	(95% CI)	(2674.4–3207.1)	(2578.7–3019.8)	(2375.1–2858.8)	(2200.5–2584.6)

	Age (years)
	Sex	50–54 (n_m=181; n_f=219)	55–59 (n_m=238; n_f=217)	60–64 (n_m=186; n_f=189)	65–73 (n_m=242; n_f=270)

SDNN (ms)	Men	138.2	129.2	130.8	131.9*
	(95% CI)	(132.5–144.1)	(124.8–133.8)	(126.0–135.7)	(127.0–137.1)
	Women	135.8	134.7	130.6	123.6
	(95% CI)	(131.0–140.7)	(130.4–139.2)	(126.2–135.3)	(119.5–127.9)
TP (ms²)	Men	3925.2	3616.1	3597.3	3585.8*
	(95% CI)	(3568.6–4317.4)	(3340.5–3914.5)	(3295.8–3926.5)	(3288.4–3910.1)
	Women	4134.0	3876.5	3514.6	3200.5
	(95% CI)	(3818.3–4475.8)	(3600.2–4174.1)	(3223.4–3832.1)	(2973.4–3445.0)
HF (ms²)	Men	63.6***	59.7***	61.0	68.0
	(95% CI)	(55.4–72.9)	(53.0–67.2)	(53.4–69.7)	(59.4–77.8)
	Women	87.8	81.0	66.1	65.3
	(95% CI)	(79.1–97.4)	(72.6–90.4)	(57.6–75.7)	(58.6–72.8)
LF (ms²)	Men	318.1**	260.7	228.4**	196.0***
	(95% CI)	(284.4–355.8)	(237.9–285.7)	(205.9–253.4)	(175.7–218.5)
	Women	258.2	234.9	179.0	147.7
	(95% CI)	(238.0–280.0)	(214.5–257.3)	(161.0–199.0)	(135.1–161.4)
LF/HF	Men	5.0***	4.4***	3.7***	2.9***
	(95% CI)	(4.6–5.4)	(4.1–4.7)	(3.4–4.1)	(2.6–3.2)
	Women	2.9	2.9	2.7	2.3
	(95% CI)	(2.7–3.2)	(2.7–3.1)	(2.5–3.0)	(2.1–2.4)
VLF (ms²)	Men	719.1	641.7	637.9***	563.0***
	(95% CI)	(650.3–795.3)	(589.6–698.3)	(581.0–700.5)	(511.2–620.1)
	Women	668.5	623.7	504.3	450.0
	(95% CI)	(621.6–719.0)	(575.6–675.8)	(461.9–550.6)	(418.7–483.6)
ULF (ms²)	Men	2653.7	2479.2*	2463.4	2515.2
	(95% CI)	(2390.7–2945.5)	(2273.1–2704.0)	(2232.5–2718.1)	(2293.2–2758.7)
	Women	2928.7	2790.5	2605.8	2384.8
	(95% CI)	(2674.4–3207.1)	(2578.7–3019.8)	(2375.1–2858.8)	(2200.5–2584.6)

n_m, number of male participants; n_f, number of female participants.

^aGeometric means are shown because values were skewed.

*P<0.05 (differences between sexes).

**P<0.01 (differences between sexes).

***P<0.001 (differences between sexes).

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