Characteristics | LBP ( −) | LBP ( +) | P | ||
---|---|---|---|---|---|
n | % | n | % | ||
Total (n = 1000) | 646 | 64.6 | 354 | 35.4 |  |
Physical features | |||||
Age (years) | Â | Â | Â | Â | 0.001** |
20–29 | 145 | 73.2 | 53 | 26.8 |  |
30–39 | 174 | 69.3 | 77 | 30.7 |  |
40–49 | 180 | 60.8 | 116 | 39.2 |  |
50–59 | 147 | 57.6 | 108 | 42.4 |  |
Lifestyle | |||||
Breathing rate (/min) | 0.047* | ||||
 < 15 | 292 | 68.1 | 137 | 31.9 |  |
≥15 | 354 | 62.0 | 217 | 38.0 |  |
Duration of heater use | Â | Â | Â | 0.005** | |
Whole sleeping duration | 68 | 56.2 | 53 | 43.8 | Â |
Until waking up | 35 | 53.0 | 31 | 47.0 | Â |
Until falling asleep | 46 | 74.2 | 16 | 25.8 | Â |
Before waking up & until falling asleep | 25 | 52.1 | 23 | 47.9 | Â |
Do not use heater while sleeping | 439 | 67.7 | 209 | 32.3 | Â |
Do not use heater at all | 33 | 60.0 | 22 | 40.0 | Â |
History of consultations with a doctor regarding anemia |  < 0.001*** | ||||
Currently undergoing anemia treatment | 13 | 48.1 | 14 | 51.9 | Â |
History of anemia treatment | 50 | 52.1 | 46 | 47.9 | Â |
Anemia present but not undergoing treatment | 64 | 50.8 | 62 | 49.2 | Â |
Presence of diseases other than anemia | 57 | 60.6 | 37 | 39.4 | Â |
Did not consult a doctor | 462 | 70.3 | 195 | 29.7 | Â |
History of analgesics use |  |  < 0.001*** | |||
2/week | 20 | 51.3 | 19 | 48.7 | Â |
1/week | 28 | 45.2 | 34 | 54.8 | Â |
3/month | 65 | 57.0 | 49 | 43.0 | Â |
Sometimes | 140 | 55.3 | 113 | 44.7 | Â |
No history of use | 393 | 73.9 | 139 | 26.1 | Â |
Dietary limitations | Â | Â | Â | Â | 0.001** |
Ongoing | 145 | 60.4 | 95 | 39.6 | Â |
Sometimes | 300 | 61.5 | 188 | 38.5 | Â |
No limitations | 201 | 73.9 | 71 | 26.1 | Â |
Menstrual history |  |  |  |  |  < 0.001*** |
Irregular | 115 | 55.0 | 94 | 45.0 | Â |
Painful | 155 | 62.5 | 93 | 37.5 | Â |
No problem | 286 | 71.9 | 112 | 28.1 | Â |
Absence of menstruation | 90 | 62.1 | 55 | 37.9 | Â |
Recent history of catching a cold | Â | Â | 0.028* | ||
No history of a cold | 515 | 66.8 | 256 | 33.2 | Â |
Last October ~ no (~ September yes) | 83 | 57.6 | 61 | 42.4 |  |
Last October ~ yes | 48 | 56.5 | 37 | 43.5 |  |
Smoking history | Â | Â | Â | 0.009** | |
No history | 501 | 66.5 | 252 | 33.5 | Â |
Sometimes | 18 | 42.9 | 24 | 57.1 | Â |
Very often | 64 | 58.7 | 45 | 41.3 | Â |
Smoked/not now | 63 | 65.6 | 33 | 34.4 | Â |
Duration of sleep (hours) | 0.013* | ||||
< 6 | 222 | 59.0 | 154 | 41.0 |  |
6–7 | 214 | 66.7 | 107 | 33.3 |  |
≥7 | 210 | 69.3 | 93 | 30.7 |  |
Frequency of using the bathroom at night (nocturia) |  < 0.001*** | ||||
0 | 414 | 70.5 | 173 | 29.5 | Â |
1 | 181 | 57.3 | 135 | 42.7 | Â |
2 | 34 | 52.3 | 31 | 47.7 | Â |
≥3 | 17 | 53.1 | 15 | 46.9 |  |
History of sauna use |  < 0.001*** | ||||
Yes | 31 | 40.3 | 46 | 59.7 | Â |
No | 615 | 66.6 | 308 | 33.4 | Â |
Hie | Â | Â | Â | Â | 0.007** |
Yes | 328 | 68.9 | 148 | 31.1 | Â |
No | 318 | 60.7 | 206 | 39.3 | Â |
Diet | |||||
Tastes and distastes | 0.001** | ||||
Yes | 88 | 51.8 | 82 | 48.2 | Â |
N/A | 244 | 67.6 | 117 | 32.4 | Â |
No | 314 | 67.0 | 155 | 33.0 | Â |
Cold foods | 0.004** | ||||
Frequently | 265 | 59.4 | 181 | 40.6 | Â |
N/A | 202 | 71.1 | 82 | 28.9 | Â |
Hardly | 179 | 66.3 | 91 | 33.7 | Â |
Consumption of richly flavored foods | 0.020* | ||||
Frequently | 189 | 58.5 | 134 | 41.5 | Â |
N/A | 272 | 67.2 | 133 | 32.8 | Â |
Hardly | 185 | 68.0 | 87 | 32.0 | Â |
Mental status | |||||
Feelings of anger | 0.013** | ||||
Yes | 152 | 58.5 | 108 | 41.5 | Â |
N/A | 348 | 64.9 | 188 | 35.1 | Â |
No | 146 | 71.6 | 58 | 28.4 | Â |
Feelings of inferiority | 0.004** | ||||
Yes | 265 | 70.1 | 113 | 29.9 | Â |
N/A | 251 | 63.9 | 142 | 36.1 | Â |
No | 130 | 56.8 | 99 | 43.2 | Â |
Feelings of deteriorating health | 0.001** | ||||
Yes | 109 | 56.2 | 85 | 43.8 | Â |
N/A | 261 | 62.4 | 157 | 37.6 | Â |
No | 276 | 71.1 | 112 | 28.9 | Â |
Feelings of exhaustion |  < 0.001*** | ||||
Yes | 153 | 56.5 | 118 | 43.5 | Â |
N/A | 239 | 62.1 | 146 | 37.9 | Â |
No | 254 | 73.8 | 90 | 26.2 | Â |
Feelings of failure |  < 0.001*** | ||||
Yes | 223 | 57.8 | 163 | 42.2 | Â |
N/A | 196 | 63.4 | 113 | 36.6 | Â |
No | 227 | 74.4 | 78 | 25.6 | Â |