Lower Urinary Tract Symptoms in Female Nurses: Evidence from the Nurse Urinary Related Health Study of China
Table 2
Description of participants’ characteristics.
Variables
Total (n = 13,191)
With LUTS (n = 6735)
Without LUTS (n = 6456)
Mean ± SD or n (%)
95% CI
Mean ± SD or n (%)
95% CI
Mean ± SD or n (%)
95% CI
Age (years)
32.67 ± 7.52
32.54–32.80
33.59 ± 7.53
33.41–33.77
31.72 ± 7.38
31.54–31.90
Age
<40 years
10,940 (82.9)
82.3–83.6
5443 (80.8)
79.9–81.7
5497 (85.1)
84.3–86.0
≥40 years
2251 (17.1)
16.4–17.7
1292 (19.2)
18.3–20.1
959 (14.9)
14.0–15.7
Race/ethnicity
Han Chinese
13,068 (99.1)
98.9–99.2
6663 (98.9)
98.7–99.2
6405 (99.2)
99.0–99.4
Other
123 (0.9)
0.8–1.1
72 (1.1)
0.8–1.3
51 (0.8)
0.6–1.0
Educational background
Below bachelor degree
2662 (20.2)
19.5–20.9
1229 (18.2)
17.3–19.2
1433 (22.2)
21.2–23.2
Bachelor degree or higher
10,529 (79.8)
79.1–80.5
5506 (81.8)
80.8–82.7
5023 (77.8)
76.8–78.8
Marital status
Single, separated, divorced, or widowed
3319 (25.2)
24.4–25.9
1275 (18.9)
18.0–19.9
2044 (31.7)
30.5–32.8
Married
9872 (74.8)
74.1–75.6
5460 (81.1)
80.1–82.0
4412 (68.3)
67.2–69.5
Monthly income
≤RMB 6000
7701 (58.4)
57.5–59.2
3752 (55.7)
54.5–56.9
3949 (61.2)
60.0–62.4
>RMB 6000
5490 (41.6)
40.8–42.5
2983 (44.3)
43.1–45.5
2507 (38.8)
37.6–40.0
Paritya
0
4110 (31.5)
30.7–32.3
1637 (24.4)
23.4–25.5
2473 (38.9)
37.7–40.1
1
5515 (42.2)
41.4–43.1
3049 (45.5)
44.3–46.7
2466 (38.8)
37.6–40.0
≥2
3434 (26.3)
25.5–27.1
2014 (30.1)
29.0–31.2
1420 (22.3)
21.3–23.4
BMIa
Underweight/normal
9524 (72.3)
71.5–73.0
4669 (69.4)
68.3–70.5
4885 (75.3)
74.2–76.3
Overweight/obesity
3654 (27.7)
27.0–28.5
2059 (30.6)
29.5–31.7
1595 (24.7)
23.7–25.8
Chronic diseases
No
12,747 (96.6)
96.3–96.9
6442 (95.6)
95.1–96.1
6305 (97.7)
97.3–98.0
Yes
444 (3.4)
3.1–3.7
293 (4.4)
3.9–4.9
151 (2.3)
2.0–2.7
Chronic constipation
No
9675 (73.3)
72.6–74.1
4527 (67.2)
66.1–68.3
5148 (79.7)
78.7–80.7
Yes
3516 (26.7)
25.9–27.4
2208 (32.8)
31.7–33.9
1308 (20.3)
19.3–21.3
Alcohol use
No
12,228 (92.7)
92.2–93.1
6193 (92.0)
91.3–92.6
6035 (93.5)
92.9–94.1
Yes
963 (7.3)
6.9–7.8
542 (8.0)
7.4–8.7
421 (6.5)
5.9–7.1
Smoking
No
13,145 (99.6)
99.5–99.7
6711 (99.6)
99.5–99.8
6434 (99.7)
99.5–99.8
Yes
46(0.4)
0.3–0.5
24(0.4)
0.2–0.5
22 (0.3)
0.2–0.5
Average fluid intake per dayc
≤500 ml
2160 (16.4)
15.8–17.0
1202 (17.8)
17.0–18.8
958 (14.8)
14.0–15.7
500 ml–1500 ml
7563 (57.3)
56.5–58.2
3816 (56.7)
55.5–57.8
3747 (58.0)
56.8–59.2
>1500 ml
3468 (26.3)
25.5–27.0
1717 (25.5)
24.5–26.5
1751 (27.1)
26.1–28.2
Taking part in physical exercise
No
10,695 (81.1)
80.4–81.7
5563 (82.6)
81.7–83.5
5132 (79.5)
78.5–80.5
Yes
2496 (18.9)
18.3–19.6
1172 (17.4)
16.5–18.3
1324 (20.5)
19.5–21.5
Working years
≤5
3710 (28.1)
27.4–28.9
1476 (21.9)
20.9–22.9
2234 (34.6)
33.5–35.8
5–10
4620 (35.0)
34.2–35.8
2500 (37.1)
36.0–38.3
2120 (32.8)
31.7–34.0
>10
4861 (36.9)
36.0–37.7
2759 (41.0)
39.8–42.1
2102 (32.6)
31.4–33.7
Professional titleb
Senior nurse or below
8357 (63.4)
62.5–64.2
3993 (59.3)
58.1–60.5
4364 (67.6)
66.4–68.7
Supervisor nurse or higher
4834 (36.6)
35.8–37.5
2742 (40.7)
39.5–41.9
2092 (32.4)
31.3–33.6
Work hours per week (hours/week)
44.57 ± 8.00
44.43–44.70
45.00 ± 8.16
44.80–45.19
44.11 ± 7.81
43.93–44.31
Work hours per week
≤40
7109 (53.9)
53.0–54.7
3433 (51.0)
49.8–52.2
3676 (56.9)
55.7–58.1
>40
6082 (46.1)
45.3–47.0
3302 (49.0)
47.8–50.2
2780 (43.1)
41.9–44.3
Night shift in the past 6 months
No
4788 (36.3)
35.5–37.1
2530 (37.6)
36.4–38.7
2258 (35.0)
33.8–36.1
Yes
8403 (63.7)
62.9–64.5
4205 (62.4)
61.3–63.6
4198 (65.0)
63.9–66.2
Hospital level
Level B major tertiary hospital
4885 (37.0)
36.2–37.9
2361 (35.1)
33.9–36.2
2524 (39.1)
37.9–40.3
Level A major tertiary hospital
8306 (63.0)
62.1–63.8
4374 (64.9)
63.8–66.1
3932 (60.9)
59.7–62.1
Nurse-to-bed ratioc
0.36 to < 0.40
529 (4.0)
3.7–4.4
320 (4.8)
4.3–5.3
209 (3.2)
2.8–3.7
0.40–0.60
3822 (29.0)
28.2–29.8
1871 (27.8)
26.7–28.9
1951 (30.2)
29.1–31.4
≥0.60 to 0.79
8840 (67.0)
66.2–67.8
4544 (67.5)
66.3–68.6
4296 (66.5)
65.4–67.7
Department typec
Internal medicine
4101 (31.1)
30.3–31.9
2125 (31.6)
30.5–32.7
1976 (30.6)
29.5–31.7
Surgery
2932 (22.2)
21.5–22.9
1492 (22.2)
21.2–23.2
1440 (22.3)
21.3–23.3
Operating room
709 (5.4)
5.0–5.8
375 (5.6)
5.0–6.1
334 (5.2)
4.7–5.7
Intensive care unit
877 (6.6)
6.2–7.1
426 (6.3)
5.8–6.9
451 (7.0)
6.4–7.6
Out-patient and emergency
1152 (8.7)
8.3–9.2
600 (8.9)
8.3–9.6
552 (8.6)
7.9–9.3
Pediatrics
891 (6.8)
6.3–7.2
442 (6.6)
6.0–7.2
449 (7.0)
6.4–7.6
Obstetrics and gynecology
1149 (8.7)
8.2–9.2
597 (8.9)
8.2–9.6
552 (8.6)
7.9–9.3
Nursing administration
446 (3.4)
3.1–3.7
231 (3.4)
3.0–3.9
215 (3.3)
2.9–3.8
Other
934 (7.1)
6.7–7.5
447 (6.6)
6.1–7.3
487 (7.5)
6.9–8.2
Note: LUTS: lower urinary tract symptoms. With LUTS: having at least one type of lower urinary tract symptoms. Without LUTS: not having any type of lower urinary tract symptoms. aVariables with missing data: parity (n = 132) and BMI (n = 13). bProfessional title: There are five grades of registered nurses in Mainland China. Senior or below indicates grades 1 and 2 registered nurses, and supervisor nurses or above indicates grades 3, 4, and 5 registered nurses. cPercentages are rounded to the nearest percent. 1 RMB = 0.1494 US dollars.
